diff --git a/Common/Database/Character/CharacterData.cs b/Common/Database/Character/CharacterData.cs
index 6e314d0..aeadf46 100644
--- a/Common/Database/Character/CharacterData.cs
+++ b/Common/Database/Character/CharacterData.cs
@@ -19,6 +19,7 @@ public class CharacterInfo
     public int Exp { get; set; }
     public uint Break { get; set; }
     public int Evolue { get; set; }
+    public uint ProLevel { get; set; }
     public int Trust { get; set; }
     public uint WeaponUniqueId { get; set; }
     public uint SkinId { get; set; }
@@ -45,6 +46,7 @@ public class CharacterInfo
                 Exp = ToUInt32(Exp),
                 Break = Break,
                 Evolue = ToUInt32(Evolue),
+                ProLevel = ProLevel,
                 Trust = ToUInt32(Trust)
             }
         };
diff --git a/GameServer/Server/CallGS/Handlers/Girl/GirlCard_ProLevelPromote.cs b/GameServer/Server/CallGS/Handlers/Girl/GirlCard_ProLevelPromote.cs
new file mode 100644
index 0000000..05472ff
--- /dev/null
+++ b/GameServer/Server/CallGS/Handlers/Girl/GirlCard_ProLevelPromote.cs
@@ -0,0 +1,52 @@
+using MikuSB.Database;
+using MikuSB.Proto;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.Girl;
+
+[CallGSApi("GirlCard_ProLevelPromote")]
+public class GirlCard_ProLevelPromote : ICallGSHandler
+{
+    private const uint MaxProLevel = 3;
+
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        var player = connection.Player!;
+        var req = JsonSerializer.Deserialize<ProLevelPromoteParam>(param);
+        if (req == null || req.CardId == 0)
+        {
+            await CallGSRouter.SendScript(connection, "GirlCard_ProLevelPromote", "{\"sErr\":\"error.BadParam\"}");
+            return;
+        }
+
+        var card = player.CharacterManager.GetCharacterByGUID((uint)req.CardId);
+        if (card == null)
+        {
+            await CallGSRouter.SendScript(connection, "GirlCard_ProLevelPromote", "{\"sErr\":\"error.BadParam\"}");
+            return;
+        }
+
+        if (card.ProLevel >= MaxProLevel)
+        {
+            await CallGSRouter.SendScript(connection, "GirlCard_ProLevelPromote", "{\"sErr\":\"error.BadParam\"}");
+            return;
+        }
+
+        card.ProLevel++;
+
+        DatabaseHelper.SaveDatabaseType(player.CharacterManager.CharacterData);
+
+        var sync = new NtfSyncPlayer();
+        sync.Items.Add(card.ToProto());
+
+        // s2c callback takes no params — return empty arg
+        await CallGSRouter.SendScript(connection, "GirlCard_ProLevelPromote", "{}", sync);
+    }
+}
+
+internal sealed class ProLevelPromoteParam
+{
+    [JsonPropertyName("nID")]
+    public int CardId { get; set; }
+}
diff --git a/version.txt b/version.txt
index 8e4423b..9cbc9bf 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-v=0.9
\ No newline at end of file
+v=1.0
\ No newline at end of file