diff --git a/Assets/02_Scripts/MonsterController.cs b/Assets/02_Scripts/MonsterController.cs
index 16fa47e..a2a300b 100644
--- a/Assets/02_Scripts/MonsterController.cs
+++ b/Assets/02_Scripts/MonsterController.cs
@@ -52,6 +52,24 @@ public class MonsterController : MonoBehaviour
 
     IEnumerator MonsterAction()
     {
+        while (!isDie)
+        {
+            switch (monsterState)
+            {
+                case State.IDLE:
+                    break;
 
+                case State.TRACE:
+                    break;
+
+                case State.ATTACK:
+                    break;
+
+                case State.DIE:
+                    break;
+            }
+
+            yield return new WaitForSeconds(0.3f);
+        }
     }
 }