diff --git a/popcorn/Assets/MyGame/Scripts/GameDataManager.cs b/popcorn/Assets/MyGame/Scripts/GameDataManager.cs
index 213ccb43..a9246e42 100644
--- a/popcorn/Assets/MyGame/Scripts/GameDataManager.cs
+++ b/popcorn/Assets/MyGame/Scripts/GameDataManager.cs
@@ -130,7 +130,7 @@ public sealed class GameData {
     
     // tutorial
     [DataMember(Name = "Data38")] 
-    public bool isFirstPlay;
+    public bool isFirstPlay = true;
     
     // mission
     [DataMember(Name = "Data1001")] 
@@ -269,6 +269,14 @@ public sealed class GameData {
             .Subtract(DateTime.UtcNow.ToLocalTime());
     }
 
+    public void FinishTutorial()
+    {
+        isFirstPlay = false;
+        fertilizerTime = DateTime.UtcNow.ToBinary();
+        increaseCustomerTime = DateTime.UtcNow.ToBinary();
+        kitchenRefreshTime = DateTime.UtcNow.ToBinary();
+    }
+
     // public void ChangeAvatar(AvatarData avatarData){
     //     newAvatarIdList.Remove(avatarData.id);
     // }