diff --git a/Assets/_Datas/02.Scripts/Controllers/GameManager.cs b/Assets/_Datas/02.Scripts/Controllers/GameManager.cs
index 1e7cd89a7..e36ea9f1c 100644
--- a/Assets/_Datas/02.Scripts/Controllers/GameManager.cs
+++ b/Assets/_Datas/02.Scripts/Controllers/GameManager.cs
@@ -13,14 +13,21 @@ public enum SceneType
         Restaurant = 1
     }
     
+    public static class SceneTypeExtensions
+    {
+        public static string ToSceneName(this SceneType sceneType)
+        {
+            return sceneType switch
+            {
+                SceneType.Title => "00.Title",
+                SceneType.Restaurant => "01.Restaurant",
+                _ => throw new ArgumentOutOfRangeException(nameof(sceneType), sceneType, null)
+            };
+        }
+    }
+    
     public class GameManager : Singleton<GameManager>
     {
-        private static readonly Dictionary<SceneType, string> SceneTypeDict = new()
-        {
-            { SceneType.Title, "00.Title" },
-            { SceneType.Restaurant, "01.Restaurant" }
-        };
-        
         public SceneType CurrentSceneType { get; private set; }
 
         private void Start()
@@ -30,9 +37,15 @@ private void Start()
 
         public async Task ChangeScene(SceneType sceneType)
         {
-            if (!SceneTypeDict.TryGetValue(sceneType, out string changeSceneName))
+            string changeSceneName;
+    
+            try
             {
-                Debug.LogError($"[GameManager] 정의되지 않은 SceneType: {sceneType}");
+                changeSceneName = sceneType.ToSceneName();
+            }
+            catch (ArgumentOutOfRangeException e)
+            {
+                Debug.LogError($"[GameManager] 정의되지 않은 SceneType: {sceneType} - {e.Message}");
                 return;
             }
 
@@ -57,8 +70,8 @@ public async Task ChangeScene(SceneType sceneType)
         
         public void ChangeSceneByIndex(int index)
         {
-            var sceneEnum = (SceneType)index;
-            _ = ChangeScene(sceneEnum);
+            var sceneType = (SceneType)index;
+            _ = ChangeScene(sceneType);
         }
     }
 }
\ No newline at end of file