diff --git a/Common/Data/Excel/BattlePassTimeExcel.cs b/Common/Data/Excel/BattlePassTimeExcel.cs
new file mode 100644
index 0000000..1089ef5
--- /dev/null
+++ b/Common/Data/Excel/BattlePassTimeExcel.cs
@@ -0,0 +1,23 @@
+using Newtonsoft.Json;
+
+namespace MikuSB.Data.Excel;
+
+[ResourceEntity("battlepass/timelist.json")]
+public class BattlePassTimeExcel : ExcelResource
+{
+    [JsonProperty("ID")] public uint Id { get; set; }
+    [JsonProperty("StartTime")] public string StartTime { get; set; } = "";
+    [JsonProperty("EndTime")] public string EndTime { get; set; } = "";
+    [JsonProperty("BuyStartTime")] public string BuyStartTime { get; set; } = "";
+    [JsonProperty("BuyEndTime")] public string BuyEndTime { get; set; } = "";
+    [JsonProperty("Condition")] public string Condition { get; set; } = "";
+    [JsonProperty("ExpStep")] public uint ExpStep { get; set; }
+    [JsonProperty("MaxExPerWeek")] public uint MaxExPerWeek { get; set; }
+
+    public override uint GetId() => Id;
+
+    public override void Loaded()
+    {
+        GameData.BattlePassTimeData[Id] = this;
+    }
+}
diff --git a/Common/Data/GameData.cs b/Common/Data/GameData.cs
index 52f6c93..64b5a43 100644
--- a/Common/Data/GameData.cs
+++ b/Common/Data/GameData.cs
@@ -60,6 +60,7 @@ public static class GameData
     public static Dictionary<uint, VirCaptureTowerExcel> VirCaptureTowerData { get; private set; } = [];
     public static Dictionary<uint, DreamCardActivityExcel> DreamCardActivityData { get; private set; } = [];
     public static Dictionary<uint, DlcActivityExcel> DlcActivityData { get; private set; } = [];
+    public static Dictionary<uint, BattlePassTimeExcel> BattlePassTimeData { get; private set; } = [];
 }
 
 public static class GameResourceTemplateId
diff --git a/GameServer/Server/CallGS/Handlers/BattlePass/BattlePassLogic_ClientRefresh.cs b/GameServer/Server/CallGS/Handlers/BattlePass/BattlePassLogic_ClientRefresh.cs
new file mode 100644
index 0000000..46d6f1f
--- /dev/null
+++ b/GameServer/Server/CallGS/Handlers/BattlePass/BattlePassLogic_ClientRefresh.cs
@@ -0,0 +1,113 @@
+using MikuSB.Data;
+using MikuSB.Data.Excel;
+using MikuSB.Database.Player;
+using MikuSB.GameServer.Game.Player;
+using MikuSB.Proto;
+using System.Globalization;
+using System.Text.Json.Nodes;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.BattlePass;
+
+[CallGSApi("BattlePassLogic_ClientRefresh")]
+public class BattlePassLogic_ClientRefresh : ICallGSHandler
+{
+    private const uint GroupId = 25;
+    private const uint CurIdSid = 1;
+
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        var now = DateTime.Now;
+        var battlePass = ResolveCurrent(GameData.BattlePassTimeData.Values, now);
+        var player = connection.Player!;
+        var sync = new NtfSyncPlayer();
+
+        if (battlePass == null)
+        {
+            SetAttr(player, CurIdSid, 0, sync);
+            await CallGSRouter.SendScript(connection, "BattlePassLogic_ClientRefresh", "{}", sync);
+            return;
+        }
+
+        SetAttr(player, CurIdSid, battlePass.Id, sync);
+
+        var response = new JsonObject
+        {
+            ["nId"] = battlePass.Id,
+            ["nStartTime"] = ToUnixSeconds(ParseConfigTime(battlePass.StartTime)),
+            ["nEndTime"] = ToUnixSeconds(ParseConfigTime(battlePass.EndTime))
+        };
+
+        await CallGSRouter.SendScript(connection, "BattlePassLogic_ClientRefresh", response.ToJsonString(), sync);
+    }
+
+    private static BattlePassTimeExcel? ResolveCurrent(IEnumerable<BattlePassTimeExcel> configs, DateTime now)
+    {
+        var parsed = configs
+            .Select(x => new
+            {
+                Config = x,
+                Start = ParseConfigTime(x.StartTime),
+                End = ParseConfigTime(x.EndTime)
+            })
+            .Where(x => x.Start.HasValue && x.End.HasValue)
+            .OrderBy(x => x.Start)
+            .ToList();
+
+        var current = parsed.FirstOrDefault(x => x.Start <= now && now < x.End);
+        if (current != null)
+            return current.Config;
+
+        var latestStarted = parsed.LastOrDefault(x => x.Start <= now && x.End > x.Start);
+        return latestStarted?.Config;
+    }
+
+    private static DateTime? ParseConfigTime(string? raw)
+    {
+        if (string.IsNullOrWhiteSpace(raw))
+            return null;
+
+        var normalized = raw.Trim().Trim('[', ']');
+        if (normalized.Length != 12)
+            return null;
+
+        return DateTime.TryParseExact(
+            normalized,
+            "yyyyMMddHHmm",
+            CultureInfo.InvariantCulture,
+            DateTimeStyles.None,
+            out var value)
+            ? value
+            : null;
+    }
+
+    private static long ToUnixSeconds(DateTime? value)
+    {
+        return value.HasValue ? new DateTimeOffset(value.Value).ToUnixTimeSeconds() : 0L;
+    }
+
+    private static void SetAttr(PlayerInstance player, uint sid, uint value, NtfSyncPlayer sync)
+    {
+        var attr = GetOrCreateAttr(player, sid);
+        if (attr.Val != value)
+        {
+            attr.Val = value;
+            sync.Custom[player.ToPackedAttrKey(GroupId, sid)] = value;
+            sync.Custom[player.ToShiftedAttrKey(GroupId, sid)] = value;
+        }
+    }
+
+    private static PlayerAttr GetOrCreateAttr(PlayerInstance player, uint sid)
+    {
+        var attr = player.Data.Attrs.FirstOrDefault(x => x.Gid == GroupId && x.Sid == sid);
+        if (attr != null)
+            return attr;
+
+        attr = new PlayerAttr
+        {
+            Gid = GroupId,
+            Sid = sid
+        };
+        player.Data.Attrs.Add(attr);
+        return attr;
+    }
+}
diff --git a/GameServer/Server/CallGS/Handlers/Activity/DLCLogic_CheckOpenAct.cs b/GameServer/Server/CallGS/Handlers/DLC/DLCLogic_CheckOpenAct.cs
similarity index 98%
rename from GameServer/Server/CallGS/Handlers/Activity/DLCLogic_CheckOpenAct.cs
rename to GameServer/Server/CallGS/Handlers/DLC/DLCLogic_CheckOpenAct.cs
index 0e59d46..b5b7958 100644
--- a/GameServer/Server/CallGS/Handlers/Activity/DLCLogic_CheckOpenAct.cs
+++ b/GameServer/Server/CallGS/Handlers/DLC/DLCLogic_CheckOpenAct.cs
@@ -6,7 +6,7 @@ using MikuSB.Proto;
 using System.Globalization;
 using System.Text.Json.Nodes;
 
-namespace MikuSB.GameServer.Server.CallGS.Handlers.Activity;
+namespace MikuSB.GameServer.Server.CallGS.Handlers.DLC;
 
 [CallGSApi("DLCLogic_CheckOpenAct")]
 public class DLCLogic_CheckOpenAct : ICallGSHandler