diff --git a/src/Snap.Hutao/Snap.Hutao.SourceGeneration/DedendencyInjection/HttpClientGenerator.cs b/src/Snap.Hutao/Snap.Hutao.SourceGeneration/DedendencyInjection/HttpClientGenerator.cs
index 4c104834..a83e2136 100644
--- a/src/Snap.Hutao/Snap.Hutao.SourceGeneration/DedendencyInjection/HttpClientGenerator.cs
+++ b/src/Snap.Hutao/Snap.Hutao.SourceGeneration/DedendencyInjection/HttpClientGenerator.cs
@@ -24,6 +24,7 @@ public class HttpClientGenerator : ISourceGenerator
     private const string DefaultName = "Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient.HttpClientConfigration.Default";
     private const string XRpcName = "Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient.HttpClientConfigration.XRpc";
     private const string XRpc2Name = "Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient.HttpClientConfigration.XRpc2";
+    private const string XRpc3Name = "Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient.HttpClientConfigration.XRpc3";
 
     private const string PrimaryHttpMessageHandlerAttributeName = "Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient.PrimaryHttpMessageHandlerAttribute";
     private const string DynamicSecretAttributeName = "Snap.Hutao.Web.Hoyolab.DynamicSecret.UseDynamicSecretAttribute";
@@ -105,6 +106,9 @@ internal static partial class IocHttpClientConfiguration
                 case XRpc2Name:
                     lineBuilder.Append("XRpc2Configuration)");
                     break;
+                case XRpc3Name:
+                    lineBuilder.Append("XRpc3Configuration)");
+                    break;
                 default:
                     throw new InvalidOperationException($"非法的HttpClientConfigration值: [{injectAsName}]");
             }
diff --git a/src/Snap.Hutao/Snap.Hutao/Core/CoreEnvironment.cs b/src/Snap.Hutao/Snap.Hutao/Core/CoreEnvironment.cs
index bfc9ad0a..4684dc78 100644
--- a/src/Snap.Hutao/Snap.Hutao/Core/CoreEnvironment.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Core/CoreEnvironment.cs
@@ -29,6 +29,11 @@ internal static class CoreEnvironment
     /// </summary>
     public const string HoyolabMobileUA = $"Mozilla/5.0 (Linux; Android 12) Mobile miHoYoBBS/{HoyolabXrpcVersion}";
 
+    /// <summary>
+    /// Hoyolab iPhone 移动端请求UA
+    /// </summary>
+    public const string HoyolabOsMobileUA = "Mozilla/5.0 (iPhone; CPU iPhone OS 16_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) miHoYoBBSOversea/2.28.0";
+
     /// <summary>
     /// 米游社 Rpc 版本
     /// </summary>
@@ -45,6 +50,7 @@ internal static class CoreEnvironment
         [SaltType.X4] = "xV8v4Qu54lUKrEYFZkJhB8cuOh9Asafs",
         [SaltType.X6] = "t0qEgfub6cvueAPgR5m9aQWWVciEer7v",
         [SaltType.PROD] = "JwYDpKvLj6MrMqqYU6jTKF17KNO2PXoS",
+        [SaltType.OS] = "6cqshh5dhw73bzxn20oexa9k516chk7s",
     }.ToImmutableDictionary();
 
     /// <summary>
diff --git a/src/Snap.Hutao/Snap.Hutao/Core/DependencyInjection/Annotation/HttpClient/HttpClientConfigration.cs b/src/Snap.Hutao/Snap.Hutao/Core/DependencyInjection/Annotation/HttpClient/HttpClientConfigration.cs
index 4d12e220..6bc5419c 100644
--- a/src/Snap.Hutao/Snap.Hutao/Core/DependencyInjection/Annotation/HttpClient/HttpClientConfigration.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Core/DependencyInjection/Annotation/HttpClient/HttpClientConfigration.cs
@@ -23,4 +23,9 @@ internal enum HttpClientConfigration
     /// 米游社登录请求配置
     /// </summary>
     XRpc2,
+
+    /// <summary>
+    /// 国际服Hoyolab请求配置
+    /// </summary>
+    XRpc3,
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Core/DependencyInjection/IocHttpClientConfiguration.cs b/src/Snap.Hutao/Snap.Hutao/Core/DependencyInjection/IocHttpClientConfiguration.cs
index 1a532ad2..dc6de29b 100644
--- a/src/Snap.Hutao/Snap.Hutao/Core/DependencyInjection/IocHttpClientConfiguration.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Core/DependencyInjection/IocHttpClientConfiguration.cs
@@ -60,4 +60,18 @@ internal static partial class IocHttpClientConfiguration
         client.DefaultRequestHeaders.Add("x-rpc-game_biz", "bbs_cn");
         client.DefaultRequestHeaders.Add("x-rpc-sdk_version", "1.3.1.2");
     }
+
+    /// <summary>
+    /// 对于需要添加动态密钥的客户端使用此配置
+    /// 国际服 API 测试
+    /// </summary>
+    /// <param name="client">配置后的客户端</param>
+    private static void XRpc3Configuration(HttpClient client)
+    {
+        client.Timeout = Timeout.InfiniteTimeSpan;
+        client.DefaultRequestHeaders.UserAgent.ParseAdd("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36");
+        client.DefaultRequestHeaders.Accept.ParseAdd("application/json");
+        client.DefaultRequestHeaders.Add("x-rpc-app_version", "1.5.0");
+        client.DefaultRequestHeaders.Add("x-rpc-client_type", "4");
+    }
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Model/Binding/User/User.cs b/src/Snap.Hutao/Snap.Hutao/Model/Binding/User/User.cs
index 4da00a9b..f3fca7fb 100644
--- a/src/Snap.Hutao/Snap.Hutao/Model/Binding/User/User.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Model/Binding/User/User.cs
@@ -4,6 +4,7 @@
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Messaging;
 using Microsoft.Extensions.DependencyInjection;
+using Snap.Hutao.Migrations;
 using Snap.Hutao.Web.Hoyolab;
 using Snap.Hutao.Web.Hoyolab.Bbs.User;
 using Snap.Hutao.Web.Hoyolab.Passport;
@@ -103,7 +104,16 @@ internal sealed class User : ObservableObject
     internal static async Task<User> ResumeAsync(EntityUser inner, CancellationToken token = default)
     {
         User user = new(inner);
-        bool isOk = await user.InitializeCoreAsync(token).ConfigureAwait(false);
+        bool isOk = false;
+
+        if (!user.Entity.IsOversea)
+        {
+            isOk = await user.InitializeCoreAsync(token).ConfigureAwait(false);
+        }
+        else
+        {
+            isOk = await user.InitializeCoreOsAsync(token).ConfigureAwait(false);
+        }
 
         if (!isOk)
         {
@@ -127,6 +137,7 @@ internal sealed class User : ObservableObject
 
         entity.Aid = cookie.GetValueOrDefault(Cookie.STUID);
         entity.Mid = cookie.GetValueOrDefault(Cookie.MID);
+        entity.IsOversea = false;
 
         if (entity.Aid != null && entity.Mid != null)
         {
@@ -141,6 +152,38 @@ internal sealed class User : ObservableObject
         }
     }
 
+    /// <summary>
+    /// 创建并初始化国际服用户（临时）
+    /// </summary>
+    /// <param name="cookie">cookie</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>用户</returns>
+    internal static async Task<User?> CreateOsUserAsync(Cookie cookie, CancellationToken token = default)
+    {
+        // 这里只负责创建实体用户，稍后在用户服务中保存到数据库
+        EntityUser entity = EntityUser.CreateOs(cookie);
+
+        entity.Aid = cookie.GetValueOrDefault(Cookie.STUID);
+
+        // Note: Currently we dont know how to get "mid" for hoyolab user,
+        // mid is set as the same value of ltuid(stuid/user id)
+        entity.Mid = entity.Aid;
+
+        entity.IsOversea = true;
+
+        if (entity.Aid != null)
+        {
+            User user = new(entity);
+            bool initialized = await user.InitializeCoreOsAsync(token).ConfigureAwait(false);
+
+            return initialized ? user : null;
+        }
+        else
+        {
+            return null;
+        }
+    }
+
     private async Task<bool> InitializeCoreAsync(CancellationToken token = default)
     {
         if (isInitialized)
@@ -268,4 +311,87 @@ internal sealed class User : ObservableObject
             return false;
         }
     }
+
+    private async Task<bool> InitializeCoreOsAsync(CancellationToken token = default)
+    {
+        if (isInitialized)
+        {
+            return true;
+        }
+
+        if (SToken == null)
+        {
+            return false;
+        }
+
+        using (IServiceScope scope = Ioc.Default.CreateScope())
+        {
+
+            // 自动填充 Ltoken
+            if (LToken == null)
+            {
+                Response<LtokenWrapper> ltokenResponse = await scope.ServiceProvider
+                    .GetRequiredService<PassportClientOs>()
+                    .GetLtokenBySTokenAsync(Entity, token)
+                    .ConfigureAwait(false);
+
+                if (ltokenResponse.IsOk())
+                {
+                    Cookie ltokenCookie = Cookie.Parse($"ltuid={Entity.Aid};ltoken={ltokenResponse.Data.Ltoken}");
+                    Entity.LToken = ltokenCookie;
+                }
+                else
+                {
+                    return false;
+                }
+            }
+
+            // Fetch user info
+            Response<UserFullInfoWrapper> response = await scope.ServiceProvider
+                .GetRequiredService<UserClient>()
+                .GetOsUserFullInfoAsync(Entity, token)
+                .ConfigureAwait(false);
+            UserInfo = response.Data?.UserInfo;
+
+            // 自动填充 CookieToken
+            if (CookieToken == null)
+            {
+                Response<UidCookieToken> cookieTokenResponse = await scope.ServiceProvider
+                    .GetRequiredService<PassportClientOs>()
+                    .GetCookieAccountInfoBySTokenAsync(Entity, token)
+                    .ConfigureAwait(false);
+
+                if (cookieTokenResponse.IsOk())
+                {
+                    Cookie cookieTokenCookie = Cookie.Parse($"account_id={Entity.Aid};cookie_token={cookieTokenResponse.Data.CookieToken}");
+                    Entity.CookieToken = cookieTokenCookie;
+                }
+                else
+                {
+                    return false;
+                }
+            }
+
+            // 获取游戏角色
+            Response<ListWrapper<UserGameRole>> userGameRolesResponse = await scope.ServiceProvider
+                .GetRequiredService<BindingClient>()
+                .GetOsUserGameRolesByCookieAsync(Entity, token)
+                .ConfigureAwait(false);
+
+            if (userGameRolesResponse.IsOk())
+            {
+                UserGameRoles = userGameRolesResponse.Data.List;
+            }
+            else
+            {
+                return false;
+            }
+        }
+
+        SelectedUserGameRole = UserGameRoles.FirstOrFirstOrDefault(role => role.IsChosen);
+
+        isInitialized = true;
+
+        return UserInfo != null && UserGameRoles.Any();
+    }
 }
diff --git a/src/Snap.Hutao/Snap.Hutao/Model/Entity/User.cs b/src/Snap.Hutao/Snap.Hutao/Model/Entity/User.cs
index 4b492b93..d77bfff2 100644
--- a/src/Snap.Hutao/Snap.Hutao/Model/Entity/User.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Model/Entity/User.cs
@@ -3,6 +3,7 @@
 
 using Snap.Hutao.Core.Database;
 using Snap.Hutao.Web.Hoyolab;
+using System;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 
@@ -72,4 +73,18 @@ internal sealed class User : ISelectable
 
         return new() { SToken = stoken, LToken = ltoken, CookieToken = cookieToken };
     }
+
+    /// <summary>
+    /// 创建一个国际服用户
+    /// </summary>
+    /// <param name="cookie">cookie</param>
+    /// <returns>新创建的用户</returns>
+    public static User CreateOs(Cookie cookie)
+    {
+        _ = cookie.TryGetAsStokenV1(out Cookie? stoken);
+        _ = cookie.TryGetAsLtoken(out Cookie? ltoken);
+        _ = cookie.TryGetAsCookieToken(out Cookie? cookieToken);
+
+        return new() { SToken = stoken, LToken = ltoken, CookieToken = cookieToken };
+    }
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Service/AvatarInfo/AvatarInfoDbOperation.cs b/src/Snap.Hutao/Snap.Hutao/Service/AvatarInfo/AvatarInfoDbOperation.cs
index 68b036a9..0a47f975 100644
--- a/src/Snap.Hutao/Snap.Hutao/Service/AvatarInfo/AvatarInfoDbOperation.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Service/AvatarInfo/AvatarInfoDbOperation.cs
@@ -90,48 +90,72 @@ internal sealed class AvatarInfoDbOperation
             .ToList();
         EnsureItemsAvatarIdDistinct(ref dbInfos, uid);
 
-        GameRecordClient gameRecordClient = Ioc.Default.GetRequiredService<GameRecordClient>();
-        Response<RecordPlayerInfo> playerInfoResponse = await gameRecordClient
-            .GetPlayerInfoAsync(userAndUid, token)
-            .ConfigureAwait(false);
+        Response<RecordPlayerInfo> playerInfoResponse;
+        Response<Web.Hoyolab.Takumi.GameRecord.Avatar.CharacterWrapper> charactersResponse;
+
+        if (userAndUid.Uid.Region == "cn_gf01" || userAndUid.Uid.Region == "cn_qd01")
+        {
+            GameRecordClient gameRecordClient = Ioc.Default.GetRequiredService<GameRecordClient>();
+            playerInfoResponse = await gameRecordClient
+               .GetPlayerInfoAsync(userAndUid, token)
+               .ConfigureAwait(false);
+
+            if (!playerInfoResponse.IsOk())
+            {
+                return GetDbAvatarInfos(uid);
+            }
+
+            charactersResponse = await gameRecordClient
+                    .GetCharactersAsync(userAndUid, playerInfoResponse.Data, token)
+                    .ConfigureAwait(false);
+        }
+        else
+        {
+            GameRecordClientOs gameRecordClientOs = Ioc.Default.GetRequiredService<GameRecordClientOs>();
+            playerInfoResponse = await gameRecordClientOs
+               .GetPlayerInfoAsync(userAndUid, token)
+               .ConfigureAwait(false);
+
+            if (!playerInfoResponse.IsOk())
+            {
+                return GetDbAvatarInfos(uid);
+            }
+
+            charactersResponse = await gameRecordClientOs
+                    .GetCharactersAsync(userAndUid, playerInfoResponse.Data, token)
+                    .ConfigureAwait(false);
+        }
 
         token.ThrowIfCancellationRequested();
 
-        if (playerInfoResponse.IsOk())
+        if (charactersResponse.IsOk())
         {
-            Response<Web.Hoyolab.Takumi.GameRecord.Avatar.CharacterWrapper> charactersResponse = await gameRecordClient
-                .GetCharactersAsync(userAndUid, playerInfoResponse.Data, token)
-                .ConfigureAwait(false);
+            List<RecordCharacter> characters = charactersResponse.Data.Avatars;
 
-            if (charactersResponse.IsOk())
+            GameRecordCharacterAvatarInfoComposer composer = Ioc.Default.GetRequiredService<GameRecordCharacterAvatarInfoComposer>();
+
+            foreach (RecordCharacter character in characters)
             {
-                List<RecordCharacter> characters = charactersResponse.Data.Avatars;
-
-                GameRecordCharacterAvatarInfoComposer composer = Ioc.Default.GetRequiredService<GameRecordCharacterAvatarInfoComposer>();
-
-                foreach (RecordCharacter character in characters)
+                if (AvatarIds.IsPlayer(character.Id))
                 {
-                    if (AvatarIds.IsPlayer(character.Id))
-                    {
-                        continue;
-                    }
+                    continue;
+                }
 
-                    token.ThrowIfCancellationRequested();
+                token.ThrowIfCancellationRequested();
 
-                    ModelAvatarInfo? entity = dbInfos.SingleOrDefault(i => i.Info.AvatarId == character.Id);
+                ModelAvatarInfo? entity = dbInfos.SingleOrDefault(i => i.Info.AvatarId == character.Id);
 
-                    if (entity == null)
-                    {
-                        EnkaAvatarInfo avatarInfo = new() { AvatarId = character.Id };
-                        avatarInfo = await composer.ComposeAsync(avatarInfo, character).ConfigureAwait(false);
-                        entity = ModelAvatarInfo.Create(uid, avatarInfo);
-                        appDbContext.AvatarInfos.AddAndSave(entity);
-                    }
-                    else
-                    {
-                        entity.Info = await composer.ComposeAsync(entity.Info, character).ConfigureAwait(false);
-                        appDbContext.AvatarInfos.UpdateAndSave(entity);
-                    }
+                if (entity == null)
+                {
+                    EnkaAvatarInfo avatarInfo = new() { AvatarId = character.Id };
+                    avatarInfo = await composer.ComposeAsync(avatarInfo, character).ConfigureAwait(false);
+                    entity = ModelAvatarInfo.Create(uid, avatarInfo);
+                    appDbContext.AvatarInfos.AddAndSave(entity);
+                }
+                else
+                {
+                    entity.Info = await composer.ComposeAsync(entity.Info, character).ConfigureAwait(false);
+                    appDbContext.AvatarInfos.UpdateAndSave(entity);
                 }
             }
         }
diff --git a/src/Snap.Hutao/Snap.Hutao/Service/DailyNote/DailyNoteNotifier.cs b/src/Snap.Hutao/Snap.Hutao/Service/DailyNote/DailyNoteNotifier.cs
index 8bf52e47..71e6bb59 100644
--- a/src/Snap.Hutao/Snap.Hutao/Service/DailyNote/DailyNoteNotifier.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Service/DailyNote/DailyNoteNotifier.cs
@@ -60,16 +60,13 @@ internal sealed class DailyNoteNotifier
             BindingClient bindingClient = scope.ServiceProvider.GetRequiredService<BindingClient>();
             AuthClient authClient = scope.ServiceProvider.GetRequiredService<AuthClient>();
 
-            Response<ActionTicketWrapper> actionTicketResponse = await authClient
-                .GetActionTicketByStokenAsync("game_role", entry.User)
-                .ConfigureAwait(false);
-
             string? attribution = SH.ServiceDailyNoteNotifierAttribution;
-            if (actionTicketResponse.IsOk())
+
+            if (entry.User.IsOversea)
             {
                 Response<ListWrapper<UserGameRole>> rolesResponse = await scope.ServiceProvider
                     .GetRequiredService<BindingClient>()
-                    .GetUserGameRolesByActionTicketAsync(actionTicketResponse.Data.Ticket, entry.User)
+                    .GetOsUserGameRolesByCookieAsync(entry.User)
                     .ConfigureAwait(false);
 
                 if (rolesResponse.IsOk())
@@ -77,6 +74,27 @@ internal sealed class DailyNoteNotifier
                     List<UserGameRole> roles = rolesResponse.Data.List;
                     attribution = roles.SingleOrDefault(r => r.GameUid == entry.Uid)?.ToString() ?? "Unkonwn";
                 }
+
+            }
+            else
+            {
+                Response<ActionTicketWrapper> actionTicketResponse = await authClient
+                    .GetActionTicketByStokenAsync("game_role", entry.User)
+                    .ConfigureAwait(false);
+
+                if (actionTicketResponse.IsOk())
+                {
+                    Response<ListWrapper<UserGameRole>> rolesResponse = await scope.ServiceProvider
+                        .GetRequiredService<BindingClient>()
+                        .GetUserGameRolesByActionTicketAsync(actionTicketResponse.Data.Ticket, entry.User)
+                        .ConfigureAwait(false);
+
+                    if (rolesResponse.IsOk())
+                    {
+                        List<UserGameRole> roles = rolesResponse.Data.List;
+                        attribution = roles.SingleOrDefault(r => r.GameUid == entry.Uid)?.ToString() ?? "Unkonwn";
+                    }
+                }
             }
 
             ToastContentBuilder builder = new ToastContentBuilder()
diff --git a/src/Snap.Hutao/Snap.Hutao/Service/DailyNote/DailyNoteService.cs b/src/Snap.Hutao/Snap.Hutao/Service/DailyNote/DailyNoteService.cs
index 3add8387..37fca642 100644
--- a/src/Snap.Hutao/Snap.Hutao/Service/DailyNote/DailyNoteService.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Service/DailyNote/DailyNoteService.cs
@@ -12,6 +12,7 @@ using Snap.Hutao.Model.Entity.Database;
 using Snap.Hutao.Service.Abstraction;
 using Snap.Hutao.Service.Game;
 using Snap.Hutao.Service.User;
+using Snap.Hutao.Web.Hoyolab;
 using Snap.Hutao.Web.Hoyolab.Takumi.GameRecord;
 using System.Collections.ObjectModel;
 using WebDailyNote = Snap.Hutao.Web.Hoyolab.Takumi.GameRecord.DailyNote.DailyNote;
@@ -61,14 +62,27 @@ internal sealed class DailyNoteService : IDailyNoteService, IRecipient<UserRemov
         {
             AppDbContext appDbContext = scope.ServiceProvider.GetRequiredService<AppDbContext>();
             GameRecordClient gameRecordClient = scope.ServiceProvider.GetRequiredService<GameRecordClient>();
+            GameRecordClientOs gameRecordClientOs = scope.ServiceProvider.GetRequiredService<GameRecordClientOs>();
 
             if (!appDbContext.DailyNotes.Any(n => n.Uid == roleUid))
             {
                 DailyNoteEntry newEntry = DailyNoteEntry.Create(role);
 
-                Web.Response.Response<WebDailyNote> dailyNoteResponse = await gameRecordClient
+                // 根据 Uid 的地区选择不同的 API
+                Web.Response.Response<WebDailyNote> dailyNoteResponse;
+                PlayerUid playerUid = new(roleUid);
+                if (playerUid.Region == "cn_gf01" || playerUid.Region == "cn_qd01")
+                {
+                    dailyNoteResponse = await gameRecordClient
                     .GetDailyNoteAsync(role)
                     .ConfigureAwait(false);
+                }
+                else
+                {
+                    dailyNoteResponse = await gameRecordClientOs
+                    .GetDailyNoteAsync(role)
+                    .ConfigureAwait(false);
+                }
 
                 if (dailyNoteResponse.IsOk())
                 {
@@ -110,11 +124,13 @@ internal sealed class DailyNoteService : IDailyNoteService, IRecipient<UserRemov
         {
             AppDbContext appDbContext = scope.ServiceProvider.GetRequiredService<AppDbContext>();
             GameRecordClient gameRecordClient = scope.ServiceProvider.GetRequiredService<GameRecordClient>();
+            GameRecordClientOs gameRecordClientOs = scope.ServiceProvider.GetRequiredService<GameRecordClientOs>();
 
             bool isSilentMode = appDbContext.Settings
                 .SingleOrAdd(SettingEntry.DailyNoteSilentWhenPlayingGame, Core.StringLiterals.False)
                 .GetBoolean();
             bool isGameRunning = scope.ServiceProvider.GetRequiredService<IGameService>().IsGameRunning();
+
             if (isSilentMode && isGameRunning)
             {
                 // Prevent notify when we are in game && silent mode.
@@ -123,9 +139,20 @@ internal sealed class DailyNoteService : IDailyNoteService, IRecipient<UserRemov
 
             foreach (DailyNoteEntry entry in appDbContext.DailyNotes.Include(n => n.User))
             {
-                Web.Response.Response<WebDailyNote> dailyNoteResponse = await gameRecordClient
+                Web.Response.Response<WebDailyNote> dailyNoteResponse;
+                PlayerUid playerUid = new(entry.Uid);
+                if (playerUid.Region == "cn_gf01" || playerUid.Region == "cn_qd01")
+                {
+                    dailyNoteResponse = await gameRecordClient
                     .GetDailyNoteAsync(new(entry.User, entry.Uid))
                     .ConfigureAwait(false);
+                }
+                else
+                {
+                    dailyNoteResponse = await gameRecordClientOs
+                    .GetDailyNoteAsync(new(entry.User, entry.Uid))
+                    .ConfigureAwait(false);
+                }
 
                 if (dailyNoteResponse.ReturnCode == 0)
                 {
diff --git a/src/Snap.Hutao/Snap.Hutao/Service/GachaLog/QueryProvider/GachaLogQueryStokenProvider.cs b/src/Snap.Hutao/Snap.Hutao/Service/GachaLog/QueryProvider/GachaLogQueryStokenProvider.cs
index 2db0d111..701129c8 100644
--- a/src/Snap.Hutao/Snap.Hutao/Service/GachaLog/QueryProvider/GachaLogQueryStokenProvider.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Service/GachaLog/QueryProvider/GachaLogQueryStokenProvider.cs
@@ -38,6 +38,11 @@ internal sealed class GachaLogQueryStokenProvider : IGachaLogQueryProvider
     {
         if (UserAndUid.TryFromUser(userService.Current, out UserAndUid? userAndUid))
         {
+            if (userAndUid.Uid.Region != "cn_gf01" && userAndUid.Uid.Region != "cn_qd01")
+            {
+                return new(false, "Unsupported for hoyoverse account");
+            }
+
             GenAuthKeyData data = GenAuthKeyData.CreateForWebViewGacha(userAndUid.Uid);
             Response<GameAuthKey> authkeyResponse = await bindingClient2.GenerateAuthenticationKeyAsync(userAndUid.User, data).ConfigureAwait(false);
 
diff --git a/src/Snap.Hutao/Snap.Hutao/Service/SpiralAbyss/SpiralAbyssRecordService.cs b/src/Snap.Hutao/Snap.Hutao/Service/SpiralAbyss/SpiralAbyssRecordService.cs
index 45365467..f2fd9c83 100644
--- a/src/Snap.Hutao/Snap.Hutao/Service/SpiralAbyss/SpiralAbyssRecordService.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Service/SpiralAbyss/SpiralAbyssRecordService.cs
@@ -21,6 +21,7 @@ internal class SpiralAbyssRecordService : ISpiralAbyssRecordService
 {
     private readonly AppDbContext appDbContext;
     private readonly GameRecordClient gameRecordClient;
+    private readonly GameRecordClientOs gameRecordClientOs;
 
     private string? uid;
     private ObservableCollection<SpiralAbyssEntry>? spiralAbysses;
@@ -30,10 +31,11 @@ internal class SpiralAbyssRecordService : ISpiralAbyssRecordService
     /// </summary>
     /// <param name="appDbContext">数据库上下文</param>
     /// <param name="gameRecordClient">游戏记录客户端</param>
-    public SpiralAbyssRecordService(AppDbContext appDbContext, GameRecordClient gameRecordClient)
+    public SpiralAbyssRecordService(AppDbContext appDbContext, GameRecordClient gameRecordClient, GameRecordClientOs gameRecordClientOs)
     {
         this.appDbContext = appDbContext;
         this.gameRecordClient = gameRecordClient;
+        this.gameRecordClientOs = gameRecordClientOs;
     }
 
     /// <inheritdoc/>
@@ -70,9 +72,21 @@ internal class SpiralAbyssRecordService : ISpiralAbyssRecordService
 
     private async Task RefreshSpiralAbyssCoreAsync(UserAndUid userAndUid, SpiralAbyssSchedule schedule)
     {
-        Response<Web.Hoyolab.Takumi.GameRecord.SpiralAbyss.SpiralAbyss> response = await gameRecordClient
+        Response<Web.Hoyolab.Takumi.GameRecord.SpiralAbyss.SpiralAbyss> response;
+
+        // server determination
+        if (userAndUid.Uid.Region == "cn_gf01" || userAndUid.Uid.Region == "cn_qd01")
+        {
+            response = await gameRecordClient
             .GetSpiralAbyssAsync(userAndUid, schedule)
             .ConfigureAwait(false);
+        }
+        else
+        {
+            response = await gameRecordClientOs
+            .GetSpiralAbyssAsync(userAndUid, schedule)
+            .ConfigureAwait(false);
+        }
 
         if (response.IsOk())
         {
diff --git a/src/Snap.Hutao/Snap.Hutao/Service/User/IUserService.cs b/src/Snap.Hutao/Snap.Hutao/Service/User/IUserService.cs
index 8546d4a8..8c4502d7 100644
--- a/src/Snap.Hutao/Snap.Hutao/Service/User/IUserService.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Service/User/IUserService.cs
@@ -48,6 +48,13 @@ internal interface IUserService
     /// <returns>处理的结果</returns>
     Task<ValueResult<UserOptionResult, string>> ProcessInputCookieAsync(Cookie cookie);
 
+    /// <summary>
+    /// 尝试异步处理国际服 Cookie
+    /// </summary>
+    /// <param name="cookie">Cookie，需包含 stuid, stoken 字段</param>
+    /// <returns>处理的结果</returns>
+    Task<ValueResult<UserOptionResult, string>> ProcessInputOsCookieAsync(Cookie cookie);
+
     /// <summary>
     /// 异步刷新 Cookie 的 CookieToken
     /// </summary>
diff --git a/src/Snap.Hutao/Snap.Hutao/Service/User/UserService.cs b/src/Snap.Hutao/Snap.Hutao/Service/User/UserService.cs
index e111713c..a4aa33cd 100644
--- a/src/Snap.Hutao/Snap.Hutao/Service/User/UserService.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Service/User/UserService.cs
@@ -225,7 +225,49 @@ internal class UserService : IUserService
         }
         else
         {
-            return await TryCreateUserAndAddAsync(cookie).ConfigureAwait(false);
+            return await TryCreateUserAndAddAsync(cookie, false).ConfigureAwait(false);
+        }
+    }
+
+    /// <inheritdoc/>
+    public async Task<ValueResult<UserOptionResult, string>> ProcessInputOsCookieAsync(Cookie cookie)
+    {
+        await ThreadHelper.SwitchToBackgroundAsync();
+        string? stuid = cookie.GetValueOrDefault(Cookie.STUID);
+
+        if (stuid == null)
+        {
+            return new(UserOptionResult.Invalid, SH.ServiceUserProcessCookieNoMid);
+        }
+
+        // 检查 stuid 对应用户是否存在
+        if (TryGetUser(userCollection!, stuid, out BindingUser? user))
+        {
+            // Note: Currently we dont know how to get "mid" for hoyolab user,
+            // mid is set as the same value of ltuid(stuid/user id)
+            user.Entity.Mid = stuid;
+            using (IServiceScope scope = scopeFactory.CreateScope())
+            {
+                AppDbContext appDbContext = scope.ServiceProvider.GetRequiredService<AppDbContext>();
+
+                if (cookie.TryGetAsStoken(out Cookie? stoken))
+                {
+                    user.SToken = stoken;
+                    user.LToken = cookie.TryGetAsLtoken(out Cookie? ltoken) ? ltoken : user.LToken;
+                    user.CookieToken = cookie.TryGetAsCookieToken(out Cookie? cookieToken) ? cookieToken : user.CookieToken;
+
+                    await appDbContext.Users.UpdateAndSaveAsync(user.Entity).ConfigureAwait(false);
+                    return new(UserOptionResult.Updated, stuid);
+                }
+                else
+                {
+                    return new(UserOptionResult.Invalid, SH.ServiceUserProcessCookieNoStoken);
+                }
+            }
+        }
+        else
+        {
+            return await TryCreateUserAndAddAsync(cookie, true).ConfigureAwait(false);
         }
     }
 
@@ -234,10 +276,21 @@ internal class UserService : IUserService
     {
         using (IServiceScope scope = scopeFactory.CreateScope())
         {
-            Response<UidCookieToken> cookieTokenResponse = await scope.ServiceProvider
+            Response<UidCookieToken> cookieTokenResponse;
+            if (user.Entity.IsOversea)
+            {
+                cookieTokenResponse = await scope.ServiceProvider
+                    .GetRequiredService<PassportClientOs>()
+                    .GetCookieAccountInfoBySTokenAsync(user.Entity)
+                    .ConfigureAwait(false);
+            }
+            else
+            {
+                cookieTokenResponse = await scope.ServiceProvider
                     .GetRequiredService<PassportClient2>()
                     .GetCookieAccountInfoBySTokenAsync(user.Entity)
                     .ConfigureAwait(false);
+            }
 
             if (cookieTokenResponse.IsOk())
             {
@@ -265,14 +318,24 @@ internal class UserService : IUserService
         return user != null;
     }
 
-    private async Task<ValueResult<UserOptionResult, string>> TryCreateUserAndAddAsync(Cookie cookie)
+    private async Task<ValueResult<UserOptionResult, string>> TryCreateUserAndAddAsync(Cookie cookie, bool isOversea)
     {
         await ThreadHelper.SwitchToBackgroundAsync();
         using (IServiceScope scope = scopeFactory.CreateScope())
         {
             AppDbContext appDbContext = scope.ServiceProvider.GetRequiredService<AppDbContext>();
+            BindingUser? newUser;
+
+            // 判断是否为国际服
+            if (isOversea)
+            {
+                newUser = await BindingUser.CreateOsUserAsync(cookie).ConfigureAwait(false);
+            }
+            else
+            {
+                newUser = await BindingUser.CreateAsync(cookie).ConfigureAwait(false);
+            }
 
-            BindingUser? newUser = await BindingUser.CreateAsync(cookie).ConfigureAwait(false);
             if (newUser != null)
             {
                 // Sync cache
diff --git a/src/Snap.Hutao/Snap.Hutao/View/Dialog/SignInWebViewDialog.xaml.cs b/src/Snap.Hutao/Snap.Hutao/View/Dialog/SignInWebViewDialog.xaml.cs
index e712f613..33a686e0 100644
--- a/src/Snap.Hutao/Snap.Hutao/View/Dialog/SignInWebViewDialog.xaml.cs
+++ b/src/Snap.Hutao/Snap.Hutao/View/Dialog/SignInWebViewDialog.xaml.cs
@@ -47,9 +47,18 @@ internal sealed partial class SignInWebViewDialog : ContentDialog
             return;
         }
 
-        coreWebView2.SetCookie(user.CookieToken, user.LToken, null).SetMobileUserAgent();
-        signInJsInterface = new(coreWebView2, scope.ServiceProvider);
-        coreWebView2.Navigate("https://webstatic.mihoyo.com/bbs/event/signin-ys/index.html?act_id=e202009291139501");
+        if (user.Entity.IsOversea)
+        {
+            coreWebView2.SetCookie(user.CookieToken, user.LToken, null).SetOsMobileUserAgent();
+            signInJsInterface = new(coreWebView2, scope.ServiceProvider);
+            coreWebView2.Navigate("https://act.hoyolab.com/ys/event/signin-sea-v3/index.html?act_id=e202102251931481&hyl_presentation_style=fullscreen");
+        }
+        else
+        {
+            coreWebView2.SetCookie(user.CookieToken, user.LToken, null).SetMobileUserAgent();
+            signInJsInterface = new(coreWebView2, scope.ServiceProvider);
+            coreWebView2.Navigate("https://webstatic.mihoyo.com/bbs/event/signin-ys/index.html?act_id=e202009291139501");
+        }
     }
 
     private void OnContentDialogClosed(ContentDialog sender, ContentDialogClosedEventArgs args)
diff --git a/src/Snap.Hutao/Snap.Hutao/View/Page/LoginHoyoverseUserPage.xaml b/src/Snap.Hutao/Snap.Hutao/View/Page/LoginHoyoverseUserPage.xaml
new file mode 100644
index 00000000..e705ba28
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/View/Page/LoginHoyoverseUserPage.xaml
@@ -0,0 +1,50 @@
+<Page
+    x:Class="Snap.Hutao.View.Page.LoginHoyoverseUserPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:shcm="using:Snap.Hutao.Control.Markup"
+    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
+    mc:Ignorable="d">
+
+    <Grid Loaded="OnRootLoaded">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="auto"/>
+            <RowDefinition/>
+        </Grid.RowDefinitions>
+        <TextBlock
+            Grid.Row="0"
+            Margin="12,0,0,0"
+            VerticalAlignment="Center"
+            Text="{shcm:ResourceString Name=ViewPageLoginMihoyoUserTitle}"/>
+        <Grid
+            Grid.Row="0"
+            Margin="16"
+            HorizontalAlignment="Right"
+            VerticalAlignment="Center">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="Auto"/>
+                <ColumnDefinition/>
+            </Grid.ColumnDefinitions>
+            <TextBox 
+                Grid.Column="0"
+                Width="240"
+                MaxLength="9"
+                x:Name="UidInput"
+                Margin="0,0,16,0"
+                PlaceholderText="Please input your user id here."
+                HorizontalAlignment="Right"/>
+            <Button
+                Grid.Column="1"
+                RelativePanel.RightOf="UidInput"
+                Click="CookieButtonClick"
+                Content="{shcm:ResourceString Name=ViewPageLoginMihoyoUserLoggedInAction}"/>
+        </Grid>
+        
+        <WebView2
+            x:Name="WebView"
+            Grid.Row="2"
+            Margin="0,0,0,0"/>
+    </Grid>
+</Page>
diff --git a/src/Snap.Hutao/Snap.Hutao/View/Page/LoginHoyoverseUserPage.xaml.cs b/src/Snap.Hutao/Snap.Hutao/View/Page/LoginHoyoverseUserPage.xaml.cs
new file mode 100644
index 00000000..12f15301
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/View/Page/LoginHoyoverseUserPage.xaml.cs
@@ -0,0 +1,124 @@
+// Copyright (c) DGP Studio. All rights reserved.
+// Licensed under the MIT license.
+
+using Microsoft.UI.Xaml;
+using Microsoft.Web.WebView2.Core;
+using Snap.Hutao.Service.Abstraction;
+using Snap.Hutao.Service.Navigation;
+using Snap.Hutao.Service.User;
+using Snap.Hutao.View.Dialog;
+using Snap.Hutao.Web.Hoyolab;
+using Snap.Hutao.Web.Hoyolab.Passport;
+using Snap.Hutao.Web.Hoyolab.Takumi.Auth;
+using Snap.Hutao.Web.Response;
+using System.Diagnostics.Eventing.Reader;
+
+namespace Snap.Hutao.View.Page;
+
+/// <summary>
+/// ��¼�׹���ͨ��֤ҳ��
+/// </summary>
+[HighQuality]
+internal sealed partial class LoginHoyoverseUserPage : Microsoft.UI.Xaml.Controls.Page
+{
+    /// <summary>
+    /// ����һ���µĵ�¼�׹���ͨ��֤ҳ��
+    /// </summary>
+    public LoginHoyoverseUserPage()
+    {
+        InitializeComponent();
+    }
+
+    [SuppressMessage("", "VSTHRD100")]
+    private async void OnRootLoaded(object sender, RoutedEventArgs e)
+    {
+        try
+        {
+            await WebView.EnsureCoreWebView2Async();
+            
+
+            CoreWebView2CookieManager manager = WebView.CoreWebView2.CookieManager;
+            IReadOnlyList<CoreWebView2Cookie> cookies = await manager.GetCookiesAsync("https://account.hoyolab.com");
+            foreach (CoreWebView2Cookie item in cookies)
+            {
+                manager.DeleteCookie(item);
+            }
+
+            WebView.CoreWebView2.Navigate("https://account.hoyolab.com/#/login");
+        }
+        catch (Exception ex)
+        {
+            Ioc.Default.GetRequiredService<IInfoBarService>().Error(ex);
+        }
+    }
+
+    private async Task HandleCurrentCookieAsync(CancellationToken token)
+    {
+        CoreWebView2CookieManager manager = WebView.CoreWebView2.CookieManager;
+        IReadOnlyList<CoreWebView2Cookie> cookies = await manager.GetCookiesAsync("https://account.hoyolab.com");
+
+        // Get user id from text input, login_uid is missed in cookie
+        string uid = UidInput.Text;
+
+        if (uid.Length != 9)
+        {
+            return;
+        }
+
+        Cookie loginTicketCookie = Cookie.FromCoreWebView2Cookies(cookies);
+        loginTicketCookie["login_uid"] = uid;
+
+        // ʹ�� loginTicket ��ȡ stoken
+        Response<ListWrapper<NameToken>> multiTokenResponse = await Ioc.Default
+            .GetRequiredService<AuthClientOs>()
+            .GetMultiTokenByLoginTicketAsync(loginTicketCookie, token)
+            .ConfigureAwait(false);
+
+        if (!multiTokenResponse.IsOk())
+        {
+            return;
+        }
+
+        Dictionary<string, string> multiTokenMap = multiTokenResponse.Data.List.ToDictionary(n => n.Name, n => n.Token);
+        Cookie hoyoLabCookie = Cookie.Parse($"stoken={multiTokenMap["stoken"]}; stuid={uid}");
+
+        // ���� cookie �������û�
+        (UserOptionResult result, string nickname) = await Ioc.Default
+            .GetRequiredService<IUserService>()
+            .ProcessInputOsCookieAsync(hoyoLabCookie)
+            .ConfigureAwait(false);
+
+        Ioc.Default.GetRequiredService<INavigationService>().GoBack();
+        IInfoBarService infoBarService = Ioc.Default.GetRequiredService<IInfoBarService>();
+
+        switch (result)
+        {
+            case UserOptionResult.Added:
+                ViewModel.UserViewModel vm = Ioc.Default.GetRequiredService<ViewModel.UserViewModel>();
+                if (vm.Users!.Count == 1)
+                {
+                    await ThreadHelper.SwitchToMainThreadAsync();
+                    vm.SelectedUser = vm.Users.Single();
+                }
+
+                infoBarService.Success($"�û� [{nickname}] ���ӳɹ�");
+                break;
+            case UserOptionResult.Incomplete:
+                infoBarService.Information($"�� Cookie ���������� user id ���󣬲���ʧ��");
+                break;
+            case UserOptionResult.Invalid:
+                infoBarService.Information($"�� Cookie ��Ч������ʧ��");
+                break;
+            case UserOptionResult.Updated:
+                infoBarService.Success($"�û� [{nickname}] ���³ɹ�");
+                break;
+            default:
+                throw Must.NeverHappen();
+        }
+    }
+
+    private void CookieButtonClick(object sender, RoutedEventArgs e)
+    {
+        HandleCurrentCookieAsync(CancellationToken.None).SafeForget();
+    }
+}
diff --git a/src/Snap.Hutao/Snap.Hutao/View/UserView.xaml b/src/Snap.Hutao/Snap.Hutao/View/UserView.xaml
index 8bd5f811..ddba3e58 100644
--- a/src/Snap.Hutao/Snap.Hutao/View/UserView.xaml
+++ b/src/Snap.Hutao/Snap.Hutao/View/UserView.xaml
@@ -225,6 +225,23 @@
                                 Icon="{shcm:FontIcon Glyph=&#xE710;}"
                                 Label="{shcm:ResourceString Name=ViewUserCookieOperationManualInputAction}"/>
                         </StackPanel>
+                        <TextBlock
+                            Margin="10,6,0,6"
+                            Style="{StaticResource BaseTextBlockStyle}"
+                            Text="HoyoVerse Account"/>
+                        <StackPanel
+                            Margin="0,0,6,0"
+                            HorizontalAlignment="Right"
+                            Orientation="Horizontal">
+                            <AppBarButton
+                                Command="{Binding LoginHoyoverseUserCommand}"
+                                Icon="{shcm:FontIcon Glyph=&#xEB41;}"
+                                Label="{shcm:ResourceString Name=ViewUserCookieOperationLoginMihoyoUserAction}"/>
+                            <AppBarButton
+                                Command="{Binding AddOsUserCommand}"
+                                Icon="{shcm:FontIcon Glyph=&#xE710;}"
+                                Label="{shcm:ResourceString Name=ViewUserCookieOperationManualInputAction}"/>
+                        </StackPanel>
                     </StackPanel>
                 </Flyout>
             </Button.Flyout>
diff --git a/src/Snap.Hutao/Snap.Hutao/ViewModel/DailyNoteViewModel.cs b/src/Snap.Hutao/Snap.Hutao/ViewModel/DailyNoteViewModel.cs
index dace233f..12ebc139 100644
--- a/src/Snap.Hutao/Snap.Hutao/ViewModel/DailyNoteViewModel.cs
+++ b/src/Snap.Hutao/Snap.Hutao/ViewModel/DailyNoteViewModel.cs
@@ -247,9 +247,17 @@ internal sealed class DailyNoteViewModel : Abstraction.ViewModel
     {
         if (UserAndUid.TryFromUser(userService.Current, out UserAndUid? userAndUid))
         {
-            // ContentDialog must be created by main thread.
-            await ThreadHelper.SwitchToMainThreadAsync();
-            await new DailyNoteVerificationDialog(userAndUid).ShowAsync();
+            // TODO: Add verify support for oversea user
+            if (userAndUid.User.IsOversea)
+            {
+                serviceProvider.GetRequiredService<IInfoBarService>().Warning("Unsupported for hoyoverse account");
+            }
+            else
+            {
+                // ContentDialog must be created by main thread.
+                await ThreadHelper.SwitchToMainThreadAsync();
+                await new DailyNoteVerificationDialog(userAndUid).ShowAsync();
+            }
         }
         else
         {
diff --git a/src/Snap.Hutao/Snap.Hutao/ViewModel/UserViewModel.cs b/src/Snap.Hutao/Snap.Hutao/ViewModel/UserViewModel.cs
index d59490b1..af930519 100644
--- a/src/Snap.Hutao/Snap.Hutao/ViewModel/UserViewModel.cs
+++ b/src/Snap.Hutao/Snap.Hutao/ViewModel/UserViewModel.cs
@@ -46,7 +46,9 @@ internal sealed class UserViewModel : ObservableObject
 
         OpenUICommand = new AsyncRelayCommand(OpenUIAsync);
         AddUserCommand = new AsyncRelayCommand(AddUserAsync);
+        AddOsUserCommand = new AsyncRelayCommand(AddOsUserAsync);
         LoginMihoyoUserCommand = new RelayCommand(LoginMihoyoUser);
+        LoginHoyoverseUserCommand = new RelayCommand(LoginHoyoverseUser);
         RemoveUserCommand = new AsyncRelayCommand<User>(RemoveUserAsync);
         CopyCookieCommand = new RelayCommand<User>(CopyCookie);
         RefreshCookieTokenCommand = new AsyncRelayCommand(RefreshCookieTokenAsync);
@@ -87,11 +89,21 @@ internal sealed class UserViewModel : ObservableObject
     /// </summary>
     public ICommand AddUserCommand { get; }
 
+    /// <summary>
+    /// 添加国际服用户命令
+    /// </summary>
+    public ICommand AddOsUserCommand { get; }
+
     /// <summary>
     /// 登录米游社命令
     /// </summary>
     public ICommand LoginMihoyoUserCommand { get; }
 
+    /// <summary>
+    /// 登录米游社命令
+    /// </summary>
+    public ICommand LoginHoyoverseUserCommand { get; }
+
     /// <summary>
     /// 移除用户命令
     /// </summary>
@@ -161,6 +173,47 @@ internal sealed class UserViewModel : ObservableObject
         }
     }
 
+    private async Task AddOsUserAsync()
+    {
+        // ContentDialog must be created by main thread.
+        await ThreadHelper.SwitchToMainThreadAsync();
+
+        // Get cookie from user input
+        ValueResult<bool, string> result = await new UserDialog().GetInputCookieAsync().ConfigureAwait(false);
+
+        // User confirms the input
+        if (result.IsOk)
+        {
+            Cookie cookie = Cookie.Parse(result.Value);
+
+            (UserOptionResult optionResult, string uid) = await userService.ProcessInputOsCookieAsync(cookie).ConfigureAwait(false);
+
+            switch (optionResult)
+            {
+                case UserOptionResult.Added:
+                    if (Users!.Count == 1)
+                    {
+                        await ThreadHelper.SwitchToMainThreadAsync();
+                        SelectedUser = Users.Single();
+                    }
+
+                    infoBarService.Success(string.Format(SH.ViewModelUserAdded, uid));
+                    break;
+                case UserOptionResult.Incomplete:
+                    infoBarService.Information(SH.ViewModelUserIncomplete);
+                    break;
+                case UserOptionResult.Invalid:
+                    infoBarService.Information(SH.ViewModelUserInvalid);
+                    break;
+                case UserOptionResult.Updated:
+                    infoBarService.Success(string.Format(SH.ViewModelUserUpdated, uid));
+                    break;
+                default:
+                    throw Must.NeverHappen();
+            }
+        }
+    }
+
     private void LoginMihoyoUser()
     {
         if (Core.WebView2Helper.IsSupported)
@@ -173,6 +226,21 @@ internal sealed class UserViewModel : ObservableObject
         }
     }
 
+    /// <summary>
+    /// 打开浏览器登录 hoyolab 以获取 cookie
+    /// </summary>
+    private void LoginHoyoverseUser()
+    {
+        if (Core.WebView2Helper.IsSupported)
+        {
+            serviceProvider.GetRequiredService<INavigationService>().Navigate<LoginHoyoverseUserPage>(INavigationAwaiter.Default);
+        }
+        else
+        {
+            infoBarService.Warning(SH.CoreWebView2HelperVersionUndetected);
+        }
+    }
+
     private async Task RemoveUserAsync(User? user)
     {
         if (user != null)
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/ApiOsEndpoints.cs b/src/Snap.Hutao/Snap.Hutao/Web/ApiOsEndpoints.cs
index 6743bd2d..9f937136 100644
--- a/src/Snap.Hutao/Snap.Hutao/Web/ApiOsEndpoints.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Web/ApiOsEndpoints.cs
@@ -1,7 +1,11 @@
 // Copyright (c) DGP Studio. All rights reserved.
 // Licensed under the MIT license.
 
+using Microsoft.EntityFrameworkCore.Sqlite.Query.Internal;
+using Microsoft.UI.Xaml;
+using Snap.Hutao.Model.Primitive;
 using Snap.Hutao.Service.Game;
+using Snap.Hutao.Web.Hoyolab;
 
 namespace Snap.Hutao.Web;
 
@@ -13,6 +17,178 @@ namespace Snap.Hutao.Web;
 [SuppressMessage("", "SA1124")]
 internal static class ApiOsEndpoints
 {
+    #region ApiGeetest
+
+    /// <summary>
+    /// 获取GT码
+    /// </summary>
+    /// <param name="gt">gt</param>
+    /// <returns>GT码Url</returns>
+    public static string GeetestGetType(string gt)
+    {
+        return $"{ApiNaGeetest}/gettype.php?gt={gt}";
+    }
+
+    /// <summary>
+    /// 验证接口
+    /// </summary>
+    /// <param name="gt">gt</param>
+    /// <param name="challenge">challenge流水号</param>
+    /// <returns>验证接口Url</returns>
+    public static string GeetestAjax(string gt, string challenge)
+    {
+        return $"{ApiNaGeetest}/ajax.php?gt={gt}&challenge={challenge}&lang=zh-cn&pt=0&client_type=web";
+    }
+
+    #endregion
+
+    #region ApiOsTakumiAuthApi
+
+    /// <summary>
+    /// 获取 stoken 与 ltoken
+    /// </summary>
+    /// <param name="loginTicket">登录票证</param>
+    /// <param name="loginUid">uid</param>
+    /// <returns>Url</returns>
+    public static string AuthMultiToken(string loginTicket, string loginUid)
+    {
+        return $"{ApiAccountOsAuthApi}/getMultiTokenByLoginTicket?login_ticket={loginTicket}&uid={loginUid}&token_types=3";
+    }
+
+    /// <summary>
+    /// 获取 stoken 与 ltoken
+    /// </summary>
+    /// <param name="actionType">操作类型 game_role</param>
+    /// <param name="stoken">Stoken</param>
+    /// <param name="uid">uid</param>
+    /// <returns>Url</returns>
+    public static string AuthActionTicket(string actionType, string stoken, string uid)
+    {
+        return $"{ApiAccountOsAuthApi}/getActionTicketBySToken?action_type={actionType}&stoken={Uri.EscapeDataString(stoken)}&uid={uid}";
+    }
+
+    #endregion
+
+    #region ApiOsTaKumiApi
+
+    /// <summary>
+    /// 用户游戏角色
+    /// </summary>
+    /// <returns>用户游戏角色字符串</returns>
+    public const string UserGameRolesByCookie = $"{ApiOsTaKumiBindingApi}/getUserGameRolesByCookie?game_biz=hk4e_global";
+
+    /// <summary>
+    /// 用户游戏角色
+    /// </summary>
+    /// <param name="region">地区代号</param>
+    /// <returns>用户游戏角色字符串</returns>
+    public static string UserGameRolesByLtoken(string region)
+    {
+        return $"{ApiAccountOsBindingApi}/getUserGameRolesByLtoken?game_biz=hk4e_global&region={region}";
+    }
+
+    #endregion
+
+    #region SgPublicApi
+
+    /// <summary>
+    /// 计算器家具计算
+    /// </summary>
+    public const string CalculateOsFurnitureCompute = $"{SgPublicApi}/event/calculateos/furniture/list";
+
+    /// <summary>
+    /// 计算器角色列表 size 20
+    /// </summary>
+    public const string CalculateOsAvatarList = $"{SgPublicApi}/event/calculateos/avatar/list";
+
+    /// <summary>
+    /// 计算器武器列表 size 20
+    /// </summary>
+    public const string CalculateOsWeaponList = $"{SgPublicApi}/event/calculateos/weapon/list";
+
+    /// <summary>
+    /// 计算器结果
+    /// </summary>
+    public const string CalculateOsCompute = $"{SgPublicApi}/event/calculateos/compute";
+
+    /// <summary>
+    /// 计算器同步角色详情 size 20
+    /// </summary>
+    /// <param name="avatarId">角色Id</param>
+    /// <param name="uid">uid</param>
+    /// <returns>角色详情</returns>
+    public static string CalculateOsSyncAvatarDetail(AvatarId avatarId, PlayerUid uid)
+    {
+        return $"{SgPublicApi}/event/calculateos/sync/avatar/detail?avatar_id={avatarId.Value}&uid={uid.Value}&region={uid.Region}";
+    }
+
+    /// <summary>
+    /// 计算器同步角色列表 size 20
+    /// </summary>
+    public const string CalculateOsSyncAvatarList = $"{SgPublicApi}/event/calculateos/sync/avatar/list";
+
+    #endregion
+
+    #region BbsApiOsApi
+
+    /// <summary>
+    /// 查询其他用户详细信息
+    /// </summary>
+    /// <param name="bbsUid">bbs Uid</param>
+    /// <returns>查询其他用户详细信息字符串</returns>
+    public static string UserFullInfoQuery(string bbsUid)
+    {
+        return $"{BbsApiOs}/community/painter/wapi/user/full";
+    }
+
+    /// <summary>
+    /// 国际服角色基本信息
+    /// </summary>
+    /// <param name="uid">uid</param>
+    /// <returns>角色基本信息字符串</returns>
+    public static string GameRecordRoleBasicInfo(PlayerUid uid)
+    {
+        return $"{BbsApiOsGameRecordApi}/roleBasicInfo?role_id={uid.Value}&server={uid.Region}";
+    }
+
+    /// <summary>
+    /// 国际服角色信息
+    /// </summary>
+    public const string GameRecordCharacter = $"{BbsApiOsGameRecordApi}/character";
+
+    /// <summary>
+    /// 国际服游戏记录实时便笺
+    /// </summary>
+    /// <param name="uid">uid</param>
+    /// <returns>游戏记录实时便笺字符串</returns>
+    public static string GameRecordDailyNote(PlayerUid uid)
+    {
+        return $"{BbsApiOsGameRecordApi}/dailyNote?server={uid.Region}&role_id={uid.Value}";
+    }
+
+    /// <summary>
+    /// 国际服游戏记录主页
+    /// </summary>
+    /// <param name="uid">uid</param>
+    /// <returns>游戏记录主页字符串</returns>
+    public static string GameRecordIndex(PlayerUid uid)
+    {
+        return $"{BbsApiOsGameRecordApi}/index?server={uid.Region}&role_id={uid.Value}";
+    }
+
+    /// <summary>
+    /// 国际服深渊信息
+    /// </summary>
+    /// <param name="scheduleType">深渊类型</param>
+    /// <param name="uid">Uid</param>
+    /// <returns>深渊信息字符串</returns>
+    public static string GameRecordSpiralAbyss(Hoyolab.Takumi.GameRecord.SpiralAbyssSchedule scheduleType, PlayerUid uid)
+    {
+        return $"{BbsApiOsGameRecordApi}/spiralAbyss?schedule_type={(int)scheduleType}&role_id={uid.Value}&server={uid.Region}";
+    }
+
+    #endregion
+
     #region Hk4eApiOsGachaInfoApi
 
     /// <summary>
@@ -26,6 +202,25 @@ internal static class ApiOsEndpoints
     }
     #endregion
 
+    #region ApiAccountOsApi
+
+    /// <summary>
+    /// Hoyolab App Login api
+    /// Can fetch stoken
+    /// </summary>
+    public const string WebLoginByPassword = $"{ApiAccountOsAuthApi}/webLoginByPassword";
+
+    /// <summary>
+    /// 获取 Ltoken
+    /// </summary>
+    public const string AccountGetLtokenByStoken = $"{ApiAccountOsAuthApi}/getLTokenBySToken";
+
+    /// <summary>
+    /// fetch CookieToken
+    /// </summary>
+    public const string AccountGetCookieTokenBySToken = $"{ApiAccountOsAuthApi}/getCookieAccountInfoBySToken";
+    #endregion
+
     #region SdkStaticLauncherApi
 
     /// <summary>
@@ -40,10 +235,31 @@ internal static class ApiOsEndpoints
     #endregion
 
     #region Hosts | Queries
+    private const string ApiNaGeetest = "https://api-na.geetest.com";
+
+    private const string ApiOsTaKumi = "https://api-os-takumi.hoyoverse.com";
+    private const string ApiOsTaKumiBindingApi = $"{ApiOsTaKumi}/binding/api";
+
+    private const string ApiAccountOs = "https://api-account-os.hoyolab.com";
+    private const string ApiAccountOsBindingApi = $"{ApiAccountOs}/binding/api";
+    private const string ApiAccountOsAuthApi = $"{ApiAccountOs}/account/auth/api";
+
+    private const string BbsApiOs = "https://bbs-api-os.hoyolab.com";
+    private const string BbsApiOsGameRecordApi = $"{BbsApiOs}/game_record/genshin/api";
+
     private const string Hk4eApiOs = "https://hk4e-api-os.hoyoverse.com";
     private const string Hk4eApiOsGachaInfoApi = $"{Hk4eApiOs}/event/gacha_info/api";
 
     private const string SdkOsStatic = "https://sdk-os-static.mihoyo.com";
     private const string SdkOsStaticLauncherApi = $"{SdkOsStatic}/hk4e_global/mdk/launcher/api";
+
+    private const string SgPublicApi = "https://sg-public-api.hoyolab.com";
+
+    /// <summary>
+    /// Web static referer
+    /// </summary>
+    public const string WebStaticSeaMihoyoReferer = "https://webstatic-sea.mihoyo.com";
+    public const string ActHoyolabReferer = "https://act.hoyolab.com/";
+
     #endregion
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Bridge/CoreWebView2Extension.cs b/src/Snap.Hutao/Snap.Hutao/Web/Bridge/CoreWebView2Extension.cs
index 3decfd09..c32bd1ab 100644
--- a/src/Snap.Hutao/Snap.Hutao/Web/Bridge/CoreWebView2Extension.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Bridge/CoreWebView2Extension.cs
@@ -23,6 +23,17 @@ internal static class CoreWebView2Extension
         return webView;
     }
 
+    /// <summary>
+    /// 设置 移动端UA
+    /// </summary>
+    /// <param name="webView">webview2</param>
+    /// <returns>链式调用的WebView2</returns>
+    public static CoreWebView2 SetOsMobileUserAgent(this CoreWebView2 webView)
+    {
+        webView.Settings.UserAgent = Core.CoreEnvironment.HoyolabOsMobileUA;
+        return webView;
+    }
+
     /// <summary>
     /// 设置WebView2的Cookie
     /// </summary>
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Bbs/User/UserClient.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Bbs/User/UserClient.cs
index 240c18bb..d5f1c5a2 100644
--- a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Bbs/User/UserClient.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Bbs/User/UserClient.cs
@@ -52,4 +52,22 @@ internal sealed class UserClient
 
         return Response.Response.DefaultIfNull(resp);
     }
+
+    /// <summary>
+    /// 获取当前用户详细信息，使用 Ltoken
+    /// </summary>
+    /// <param name="user">用户</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>详细信息</returns>
+    [ApiInformation(Cookie = CookieType.LToken, Salt = SaltType.OS)]
+    public async Task<Response<UserFullInfoWrapper>> GetOsUserFullInfoAsync(Model.Entity.User user, CancellationToken token = default)
+    {
+        Response<UserFullInfoWrapper>? resp = await httpClient
+            .SetUser(user, CookieType.LToken)
+            .UseDynamicSecret(DynamicSecretVersion.Gen1, SaltType.OS, false)
+            .TryCatchGetFromJsonAsync<Response<UserFullInfoWrapper>>(ApiOsEndpoints.UserFullInfoQuery(user.Aid!), options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Cookie.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Cookie.cs
index 846117ea..dc1cce1c 100644
--- a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Cookie.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Cookie.cs
@@ -116,6 +116,31 @@ internal sealed partial class Cookie
         return false;
     }
 
+    /// <summary>
+    /// 提取其中的 stoken 信息
+    /// </summary>
+    /// <param name="cookie">含有 Stoken 的 cookie</param>
+    /// <returns>是否获取成功</returns>
+    public bool TryGetAsStokenV1([NotNullWhen(true)] out Cookie? cookie)
+    {
+        bool hasStoken = TryGetValue(STOKEN, out string? stoken);
+        bool hasStuid = TryGetValue(STUID, out string? stuid);
+
+        if (hasStoken && hasStuid)
+        {
+            cookie = new Cookie(new()
+            {
+                [STOKEN] = stoken!,
+                [STUID] = stuid!,
+            });
+
+            return true;
+        }
+
+        cookie = null;
+        return false;
+    }
+
     public bool TryGetAsLtoken([NotNullWhen(true)] out Cookie? cookie)
     {
         bool hasLtoken = TryGetValue(LTOKEN, out string? ltoken);
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/DynamicSecret/SaltType.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/DynamicSecret/SaltType.cs
index e9c18fcd..2683b1aa 100644
--- a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/DynamicSecret/SaltType.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/DynamicSecret/SaltType.cs
@@ -38,4 +38,9 @@ internal enum SaltType
     /// LK2
     /// </summary>
     LK2,
+
+    /// <summary>
+    /// 国际服
+    /// </summary>
+    OS,
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Passport/PassportClientOs.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Passport/PassportClientOs.cs
new file mode 100644
index 00000000..2dd06f7a
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Passport/PassportClientOs.cs
@@ -0,0 +1,103 @@
+using Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient;
+using Snap.Hutao.Model.Entity;
+using Snap.Hutao.Web.Hoyolab.Annotation;
+using Snap.Hutao.Web.Hoyolab.DynamicSecret;
+using Snap.Hutao.Web.Response;
+using System.Net.Http;
+using System.Net.Http.Json;
+using Windows.ApplicationModel.Contacts;
+
+namespace Snap.Hutao.Web.Hoyolab.Passport;
+
+/// <summary>
+/// 通行证客户端 XRPC 版
+/// </summary>
+[HighQuality]
+[UseDynamicSecret]
+[HttpClient(HttpClientConfigration.XRpc3)]
+internal sealed class PassportClientOs
+{
+    private readonly HttpClient httpClient;
+    private readonly JsonSerializerOptions options;
+    private readonly ILogger<PassportClient> logger;
+
+    /// <summary>
+    /// 构造一个新的国际服通行证客户端
+    /// </summary>
+    /// <param name="httpClient">http客户端</param>
+    /// <param name="options">json序列化选项</param>
+    /// <param name="logger">日志器</param>
+    public PassportClientOs(HttpClient httpClient, JsonSerializerOptions options, ILogger<PassportClient> logger)
+    {
+        this.httpClient = httpClient;
+        this.options = options;
+        this.logger = logger;
+    }
+
+    /// <summary>
+    /// 异步获取 CookieToken
+    /// </summary>
+    /// <param name="user">用户</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>cookie token</returns>
+    [ApiInformation(Cookie = CookieType.SToken, Salt = SaltType.None)]
+    public async Task<Response<UidCookieToken>> GetCookieAccountInfoBySTokenAsync(User user, CancellationToken token = default)
+    {
+        Response<UidCookieToken>? resp = null;
+        string? stoken = user.SToken["stoken"];
+
+        if (stoken == null || user.Aid == null)
+        {
+            return Response.Response.DefaultIfNull(resp);
+        }
+
+        StokenData data = new(stoken, user.Aid);
+        resp = await httpClient
+            .SetUser(user, CookieType.SToken)
+            .TryCatchPostAsJsonAsync<StokenData, Response<UidCookieToken>>(ApiOsEndpoints.AccountGetCookieTokenBySToken, data, options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    /// <summary>
+    /// 异步获取 Ltoken
+    /// </summary>
+    /// <param name="user">用户</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>uid 与 cookie token</returns>
+    [ApiInformation(Cookie = CookieType.SToken, Salt = SaltType.None)]
+    public async Task<Response<LtokenWrapper>> GetLtokenBySTokenAsync(User user, CancellationToken token)
+    {
+        Response<LtokenWrapper>? resp = null;
+        string? stoken = user.SToken["stoken"];
+
+        if (stoken == null || user.Aid == null)
+        {
+            return Response.Response.DefaultIfNull(resp);
+        }
+
+        StokenData data = new(stoken, user.Aid);
+        resp = await httpClient
+            .SetUser(user, CookieType.SToken)
+            .TryCatchPostAsJsonAsync<StokenData, Response<LtokenWrapper>>(ApiOsEndpoints.AccountGetLtokenByStoken, data, options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    private class StokenData
+    {
+        public StokenData(string stoken, string uid)
+        {
+            Stoken = stoken;
+            Uid = uid;
+        }
+
+        [JsonPropertyName("stoken")]
+        public string Stoken { get; set; }
+
+        [JsonPropertyName("uid")]
+        public string Uid { get; set; }
+    }
+}
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Auth/AuthClientOs.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Auth/AuthClientOs.cs
new file mode 100644
index 00000000..27027284
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Auth/AuthClientOs.cs
@@ -0,0 +1,53 @@
+using Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient;
+using Snap.Hutao.Model.Entity;
+using Snap.Hutao.Web.Hoyolab.Annotation;
+using Snap.Hutao.Web.Hoyolab.DynamicSecret;
+using Snap.Hutao.Web.Hoyolab.Takumi.Binding;
+using Snap.Hutao.Web.Response;
+using System.Net.Http;
+
+namespace Snap.Hutao.Web.Hoyolab.Takumi.Auth;
+
+/// <summary>
+/// Hoyolab 授权客户端
+/// </summary>
+[HighQuality]
+[UseDynamicSecret]
+[HttpClient(HttpClientConfigration.Default)]
+internal sealed class AuthClientOs
+{
+    private readonly HttpClient httpClient;
+    private readonly JsonSerializerOptions options;
+    private readonly ILogger<BindingClient> logger;
+
+    /// <summary>
+    /// 构造一个新的 Hoyolab 授权客户端
+    /// </summary>
+    /// <param name="httpClient">Http客户端</param>
+    /// <param name="options">Json序列化选项</param>
+    /// <param name="logger">日志器</param>
+    public AuthClientOs(HttpClient httpClient, JsonSerializerOptions options, ILogger<BindingClient> logger)
+    {
+        this.httpClient = httpClient;
+        this.options = options;
+        this.logger = logger;
+    }
+
+    /// <summary>
+    /// 获取 MultiToken
+    /// </summary>
+    /// <param name="cookie">login cookie</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>包含token的字典</returns>
+    public async Task<Response<ListWrapper<NameToken>>> GetMultiTokenByLoginTicketAsync(Cookie cookie, CancellationToken token)
+    {
+        string loginTicket = cookie["login_ticket"];
+        string loginUid = cookie["login_uid"];
+
+        Response<ListWrapper<NameToken>>? resp = await httpClient
+            .TryCatchGetFromJsonAsync<Response<ListWrapper<NameToken>>>(ApiOsEndpoints.AuthMultiToken(loginTicket, loginUid), options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+}
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Binding/BindingClient.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Binding/BindingClient.cs
index a8c598fe..fa8b55b9 100644
--- a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Binding/BindingClient.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Binding/BindingClient.cs
@@ -52,4 +52,23 @@ internal sealed class BindingClient
 
         return Response.Response.DefaultIfNull(resp);
     }
+
+    /// <summary>
+    /// 获取国际服用户角色信息
+    /// </summary>
+    /// <param name="user">用户</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>用户角色信息</returns>
+    [ApiInformation(Cookie = CookieType.LToken)]
+    public async Task<Response<ListWrapper<UserGameRole>>> GetOsUserGameRolesByCookieAsync(User user, CancellationToken token = default)
+    {
+        string url = ApiOsEndpoints.UserGameRolesByCookie;
+
+        Response<ListWrapper<UserGameRole>>? resp = await httpClient
+            .SetUser(user, CookieType.LToken)
+            .TryCatchGetFromJsonAsync<Response<ListWrapper<UserGameRole>>>(url, options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
 }
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Event/Calculate/CalculateClient.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Event/Calculate/CalculateClient.cs
index 609796c5..79e0ff46 100644
--- a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Event/Calculate/CalculateClient.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/Event/Calculate/CalculateClient.cs
@@ -43,11 +43,24 @@ internal sealed class CalculateClient
     [ApiInformation(Cookie = CookieType.Cookie)]
     public async Task<Response<Consumption>> ComputeAsync(Model.Entity.User user, AvatarPromotionDelta delta, CancellationToken token = default)
     {
-        Response<Consumption>? resp = await httpClient
+        Response<Consumption>? resp;
+
+        if (user.IsOversea)
+        {
+            resp = await httpClient
+            .SetUser(user, CookieType.Cookie)
+            .SetReferer(ApiOsEndpoints.ActHoyolabReferer)
+            .TryCatchPostAsJsonAsync<AvatarPromotionDelta, Response<Consumption>>(ApiOsEndpoints.CalculateOsCompute, delta, options, logger, token)
+            .ConfigureAwait(false);
+        }
+        else
+        {
+            resp = await httpClient
             .SetUser(user, CookieType.Cookie)
             .SetReferer(ApiEndpoints.WebStaticMihoyoReferer)
             .TryCatchPostAsJsonAsync<AvatarPromotionDelta, Response<Consumption>>(ApiEndpoints.CalculateCompute, delta, options, logger, token)
             .ConfigureAwait(false);
+        }
 
         return Response.Response.DefaultIfNull(resp);
     }
@@ -65,14 +78,28 @@ internal sealed class CalculateClient
 
         List<Avatar> avatars = new();
         Response<ListWrapper<Avatar>>? resp;
-        httpClient.SetUser(userAndUid.User, CookieType.CookieToken);
+
+        // 根据 uid 所属服务器选择 referer 与 api
+        string referer = ApiOsEndpoints.ActHoyolabReferer;
+        string endpoint = ApiOsEndpoints.CalculateOsSyncAvatarList;
+
+        if (userAndUid.Uid.Region == "cn_gf01" || userAndUid.Uid.Region == "cn_qd01")
+        {
+            referer = ApiEndpoints.WebStaticMihoyoReferer;
+            endpoint = ApiEndpoints.CalculateSyncAvatarList;
+            httpClient.SetUser(userAndUid.User, CookieType.CookieToken);
+        }
+        else
+        {
+            httpClient.SetUser(userAndUid.User, CookieType.Cookie);
+        }
 
         do
         {
             filter.Page = currentPage++;
             resp = await httpClient
-                .SetReferer(ApiEndpoints.WebStaticMihoyoReferer)
-                .TryCatchPostAsJsonAsync<SyncAvatarFilter, Response<ListWrapper<Avatar>>>(ApiEndpoints.CalculateSyncAvatarList, filter, options, logger, token)
+                .SetReferer(referer)
+                .TryCatchPostAsJsonAsync<SyncAvatarFilter, Response<ListWrapper<Avatar>>>(endpoint, filter, options, logger, token)
                 .ConfigureAwait(false);
 
             if (resp != null && resp.IsOk())
@@ -101,11 +128,21 @@ internal sealed class CalculateClient
     /// <returns>角色详情</returns>
     public async Task<Response<AvatarDetail>> GetAvatarDetailAsync(UserAndUid userAndUid, Avatar avatar, CancellationToken token = default)
     {
-        Response<AvatarDetail>? resp = await httpClient
+        Response<AvatarDetail>? resp;
+        if (userAndUid.Uid.Region == "cn_gf01" || userAndUid.Uid.Region == "cn_qd01")
+        {
+            resp = await httpClient
             .SetUser(userAndUid.User, CookieType.CookieToken)
             .TryCatchGetFromJsonAsync<Response<AvatarDetail>>(ApiEndpoints.CalculateSyncAvatarDetail(avatar.Id, userAndUid.Uid.Value), options, logger, token)
             .ConfigureAwait(false);
-
+        }
+        else
+        {
+            resp = await httpClient
+            .SetUser(userAndUid.User, CookieType.Cookie)
+            .TryCatchGetFromJsonAsync<Response<AvatarDetail>>(ApiOsEndpoints.CalculateOsSyncAvatarDetail(avatar.Id, userAndUid.Uid.Value), options, logger, token)
+            .ConfigureAwait(false);
+        }
         return Response.Response.DefaultIfNull(resp);
     }
 
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/GameRecord/GameRecordClientOs.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/GameRecord/GameRecordClientOs.cs
new file mode 100644
index 00000000..39f5e55d
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Takumi/GameRecord/GameRecordClientOs.cs
@@ -0,0 +1,133 @@
+using Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient;
+using Snap.Hutao.Model.Binding.User;
+using Snap.Hutao.Model.Primitive;
+using Snap.Hutao.Service.Abstraction;
+using Snap.Hutao.Web.Hoyolab.Annotation;
+using Snap.Hutao.Web.Hoyolab.DynamicSecret;
+using Snap.Hutao.Web.Hoyolab.Takumi.GameRecord.Avatar;
+using Snap.Hutao.Web.Response;
+using System.Net.Http;
+
+namespace Snap.Hutao.Web.Hoyolab.Takumi.GameRecord;
+
+/// <summary>
+/// Hoyoverse game record provider
+/// </summary>
+[HighQuality]
+[UseDynamicSecret]
+[HttpClient(HttpClientConfigration.XRpc3)]
+[PrimaryHttpMessageHandler(UseCookies = false)]
+internal sealed class GameRecordClientOs
+{
+    private readonly HttpClient httpClient;
+    private readonly JsonSerializerOptions options;
+    private readonly ILogger<GameRecordClient> logger;
+
+    /// <summary>
+    /// 构造一个新的游戏记录提供器
+    /// </summary>
+    /// <param name="httpClient">请求器</param>
+    /// <param name="options">json序列化选项</param>
+    /// <param name="logger">日志器</param>
+    public GameRecordClientOs(HttpClient httpClient, JsonSerializerOptions options, ILogger<GameRecordClient> logger)
+    {
+        this.httpClient = httpClient;
+        this.options = options;
+        this.logger = logger;
+    }
+
+    /// <summary>
+    /// 异步获取实时便笺
+    /// </summary>
+    /// <param name="userAndUid">用户与角色</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>实时便笺</returns>
+    [ApiInformation(Cookie = CookieType.Cookie, Salt = SaltType.OS)]
+    public async Task<Response<DailyNote.DailyNote>> GetDailyNoteAsync(UserAndUid userAndUid, CancellationToken token = default)
+    {
+        Response<DailyNote.DailyNote>? resp = await httpClient
+            .SetUser(userAndUid.User, CookieType.Cookie)
+            .UseDynamicSecret(DynamicSecretVersion.Gen1, SaltType.OS, false)
+            .TryCatchGetFromJsonAsync<Response<DailyNote.DailyNote>>(ApiOsEndpoints.GameRecordDailyNote(userAndUid.Uid.Value), options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    /// <summary>
+    /// 获取玩家基础信息
+    /// </summary>
+    /// <param name="userAndUid">用户与角色</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>玩家的基础信息</returns>
+    [ApiInformation(Cookie = CookieType.LToken, Salt = SaltType.OS)]
+    public async Task<Response<PlayerInfo>> GetPlayerInfoAsync(UserAndUid userAndUid, CancellationToken token = default)
+    {
+        Response<PlayerInfo>? resp = await httpClient
+            .SetUser(userAndUid.User, CookieType.Cookie)
+            .UseDynamicSecret(DynamicSecretVersion.Gen1, SaltType.OS, false)
+            .TryCatchGetFromJsonAsync<Response<PlayerInfo>>(ApiOsEndpoints.GameRecordIndex(userAndUid.Uid), options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    /// <summary>
+    /// 获取玩家深渊信息
+    /// </summary>
+    /// <param name="userAndUid">用户</param>
+    /// <param name="schedule">1：当期，2：上期</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>深渊信息</returns>
+    [ApiInformation(Cookie = CookieType.Cookie, Salt = SaltType.OS)]
+    public async Task<Response<SpiralAbyss.SpiralAbyss>> GetSpiralAbyssAsync(UserAndUid userAndUid, SpiralAbyssSchedule schedule, CancellationToken token = default)
+    {
+        Response<SpiralAbyss.SpiralAbyss>? resp = await httpClient
+            .SetUser(userAndUid.User, CookieType.Cookie)
+            .UseDynamicSecret(DynamicSecretVersion.Gen1, SaltType.OS, false)
+            .TryCatchGetFromJsonAsync<Response<SpiralAbyss.SpiralAbyss>>(ApiOsEndpoints.GameRecordSpiralAbyss(schedule, userAndUid.Uid), options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    /// <summary>
+    /// 获取玩家角色详细信息
+    /// </summary>
+    /// <param name="userAndUid">用户与角色</param>
+    /// <param name="playerInfo">玩家的基础信息</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>角色列表</returns>
+    [ApiInformation(Cookie = CookieType.LToken, Salt = SaltType.X4)]
+    public async Task<Response<CharacterWrapper>> GetCharactersAsync(UserAndUid userAndUid, PlayerInfo playerInfo, CancellationToken token = default)
+    {
+        CharacterData data = new(userAndUid.Uid, playerInfo.Avatars.Select(x => x.Id));
+
+        Response<CharacterWrapper>? resp = await httpClient
+            .SetUser(userAndUid.User, CookieType.Cookie)
+            .UseDynamicSecret(DynamicSecretVersion.Gen1, SaltType.OS, false)
+            .TryCatchPostAsJsonAsync<CharacterData, Response<CharacterWrapper>>(ApiOsEndpoints.GameRecordCharacter, data, options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    private class CharacterData
+    {
+        public CharacterData(PlayerUid uid, IEnumerable<AvatarId> characterIds)
+        {
+            CharacterIds = characterIds;
+            Uid = uid.Value;
+            Server = uid.Region;
+        }
+
+        [JsonPropertyName("character_ids")]
+        public IEnumerable<AvatarId> CharacterIds { get; }
+
+        [JsonPropertyName("role_id")]
+        public string Uid { get; }
+
+        [JsonPropertyName("server")]
+        public string Server { get; }
+    }
+}