diff --git a/BLHX.Server.Common/Data/Model/ChapterTemplate.cs b/BLHX.Server.Common/Data/Model/ChapterTemplate.cs
index 8e8bc53..aa3fe00 100644
--- a/BLHX.Server.Common/Data/Model/ChapterTemplate.cs
+++ b/BLHX.Server.Common/Data/Model/ChapterTemplate.cs
@@ -1,9 +1,19 @@
-using System.Text.Json.Serialization;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 
 namespace BLHX.Server.Common.Data;
 
 public class ChapterTemplate : Model
 {
+    [JsonIgnore]
+    public List<GridItem> GridItems 
+    { 
+        get 
+        {
+            return Grids.Select(x => new GridItem() { Row = x[0].GetUInt32(), Column = x[1].GetUInt32(), Blocking = x[2].GetBoolean(), Flag = x[3].GetInt32() }).ToList();
+        } 
+    }
+
     [JsonPropertyName("ItemTransformPattern")]
     public object ItemTransformPattern { get; set; }
     [JsonPropertyName("act_id")]
@@ -85,7 +95,7 @@ public class ChapterTemplate : Model
     [JsonPropertyName("friendly_id")]
     public int FriendlyId { get; set; }
     [JsonPropertyName("grids")]
-    public object[][] Grids { get; set; }
+    public List<List<JsonElement>> Grids { get; set; }
     [JsonPropertyName("group_num")]
     public int GroupNum { get; set; }
     [JsonPropertyName("guarder_expedition_list")]
@@ -203,3 +213,11 @@ public class ChapterTemplate : Model
     [JsonPropertyName("win_condition_display")]
     public string WinConditionDisplay { get; set; }
 }
+
+public readonly struct GridItem
+{
+    public uint Row { get; init; }
+    public uint Column { get; init; }
+    public bool Blocking { get; init; }
+    public int Flag { get; init; }
+}
\ No newline at end of file
diff --git a/BLHX.Server.Game/Connection.cs b/BLHX.Server.Game/Connection.cs
index 7898c0a..279f041 100644
--- a/BLHX.Server.Game/Connection.cs
+++ b/BLHX.Server.Game/Connection.cs
@@ -122,7 +122,7 @@ namespace BLHX.Server.Game
             ns.Write(sendBuf);
         }
 
-        void SendPacket(Packet packet)
+        void Send(Packet packet)
         {
             c.Log(packet.command.ToString());
             var ns = tcpClient.GetStream();
diff --git a/BLHX.Server.Game/Handlers/P12.cs b/BLHX.Server.Game/Handlers/P12.cs
index 7812d9a..ef2d81d 100644
--- a/BLHX.Server.Game/Handlers/P12.cs
+++ b/BLHX.Server.Game/Handlers/P12.cs
@@ -1,6 +1,4 @@
-using BLHX.Server.Common.Data;
-using BLHX.Server.Common.Proto;
-using BLHX.Server.Common.Proto.common;
+using BLHX.Server.Common.Proto;
 using BLHX.Server.Common.Proto.p12;
 
 namespace BLHX.Server.Game.Handlers
diff --git a/BLHX.Server.Game/Handlers/P13.cs b/BLHX.Server.Game/Handlers/P13.cs
index c71db5d..71b92e0 100644
--- a/BLHX.Server.Game/Handlers/P13.cs
+++ b/BLHX.Server.Game/Handlers/P13.cs
@@ -1,10 +1,34 @@
-using BLHX.Server.Common.Proto;
+using BLHX.Server.Common.Data;
+using BLHX.Server.Common.Proto;
 using BLHX.Server.Common.Proto.p13;
 
 namespace BLHX.Server.Game.Handlers
 {
     internal static class P13
     {
+        [PacketHandler(Command.Cs13101)]
+        static void TrackingHandler(Connection connection, Packet packet)
+        {
+            var req = packet.Decode<Cs13101>();
+            var rsp = new Sc13102();
+            if (!Data.ChapterTemplate.TryGetValue((int)req.Id, out var chapterTemplate))
+            {
+                rsp.Result = 1;
+                connection.Send(rsp);
+                return;
+            }
+
+            // TODO: Populate values, pls make managers
+            connection.Send(new Sc13102()
+            {
+                CurrentChapter = new()
+                {
+                    Id = req.Id,
+                    Time = (uint)(DateTimeOffset.Now.ToUnixTimeSeconds() + chapterTemplate.Time)
+                }
+            });
+        }
+
         [PacketHandler(Command.Cs13505)]
         static void RemasterInfoRequestHandler(Connection connection, Packet packet)
         {
@@ -16,7 +40,7 @@ namespace BLHX.Server.Game.Handlers
     {
         public static void NotifyChapterData(this Connection connection)
         {
-            connection.Send(new Sc13001() {  ReactChapter = new() });
+            connection.Send(new Sc13001() { ReactChapter = new() });
         }
     }
 }