diff --git a/Assets/Level01Controller.cs b/Assets/Level01Controller.cs
index 9c104f339efcf64d034f48d8364275f03539cfa0..76debf716112ecf78d5857afa358307ed15609a3 100644
--- a/Assets/Level01Controller.cs
+++ b/Assets/Level01Controller.cs
@@ -20,7 +20,7 @@ public class Level01Controller : MonoBehaviour
         missionText.SetText(SetTextMission());
     }
 
-    string SetTextMission()
+    private string SetTextMission()
     {
         return $"Your Mission\nKill Keroco     {EnemyDeathCount}/{maxKerocoDeath}";
     }
diff --git a/Assets/Level02Controller.cs b/Assets/Level02Controller.cs
index cc433c7339aa501a712b92b602123122456411e8..a0decff34f42ea07a58c173dad081e7266f395b4 100644
--- a/Assets/Level02Controller.cs
+++ b/Assets/Level02Controller.cs
@@ -27,7 +27,7 @@ public class Level02Controller : MonoBehaviour
         EventManager.StopListening("LeaderOfEnemyDeath", IncrementLeaderOfEnemyDeathCount);
     }
 
-    string SetTextMission()
+    private string SetTextMission()
     {
         return $"Your Mission\nKill Keroco     {EnemyDeathCount}/{maxKerocoDeath}\nKill Kepala Keroco   {EnemyLeaderDeathCount}/{maxLeaderOfKerocoDeath}";
     }
diff --git a/Assets/Level03Controller.cs b/Assets/Level03Controller.cs
index 24d46388c101a81b25254623803e715da6741efe..e5fe3350c0c65cded9af00f7ca5c33c595ae0757 100644
--- a/Assets/Level03Controller.cs
+++ b/Assets/Level03Controller.cs
@@ -32,7 +32,7 @@ public class Level03Controller : MonoBehaviour
         EventManager.StopListening("AdmiralOfEnemyDeath", IncrementAdmiralOfEnemyDeathCount);
     }
     
-    string SetTextMission()
+    private string SetTextMission()
     {
         return $"Your Mission\nKill Kepala Keroco   {EnemyLeaderDeathCount}/{maxLeaderOfKerocoDeath}\nKill Jenderal     {EnemyAdmiralDeathCount}/{maxAdmiralOfKerocoDeath}";
     }
diff --git a/Assets/Level04Controller.cs b/Assets/Level04Controller.cs
index 92bc69d0a3c03f8e36eb42636d5e0fd9d5baa89f..514ab64fe782373a92d9d1d84753c85e279f272b 100644
--- a/Assets/Level04Controller.cs
+++ b/Assets/Level04Controller.cs
@@ -33,7 +33,7 @@ public class Level04Controller : MonoBehaviour
         EventManager.StopListening("KingOfEnemyDeath", IncrementKingOfEnemyDeathCount);
     }
 
-    string SetTextMission()
+    private string SetTextMission()
     {
         return $"Your Mission\nKill Kepala Keroco   {EnemyLeaderDeathCount}/{maxLeaderKerocoDeath}\nKill Jenderal     {EnemyAdmiralDeathCount}/{maxAdmiralOfKerocoDeath}\nKill King     {EnemyKingDeathCount}/{maxKingOfKerocoDeath}";
     }