diff --git a/08_DarkSea/Unity-19050-08-DarkSea/19050-08-DarkSea/Assets/Scripts/movieController.cs b/08_DarkSea/Unity-19050-08-DarkSea/19050-08-DarkSea/Assets/Scripts/movieController.cs
index fc5b5d9..e6db022 100644
--- a/08_DarkSea/Unity-19050-08-DarkSea/19050-08-DarkSea/Assets/Scripts/movieController.cs
+++ b/08_DarkSea/Unity-19050-08-DarkSea/19050-08-DarkSea/Assets/Scripts/movieController.cs
@@ -29,6 +29,8 @@ public class movieController : MonoBehaviour
     public AudioClip step4;
     */
 
+    public float alpha_max = 0.5f;
+
     bool playAud;
     float alpha;
 
@@ -65,9 +67,9 @@ public class movieController : MonoBehaviour
         else if (stat == 1)
         {
             alpha += fade_speed * 5f;
-            if (alpha >= 1)
+            if (alpha >= alpha_max)
             {
-                alpha = 1;
+                alpha = alpha_max;
                 stat = 2;
             }
         }
diff --git a/08_DarkSea/Unity-19050-08-DarkSea/19050-08-DarkSea/Assets/Scripts/tuio_event.cs b/08_DarkSea/Unity-19050-08-DarkSea/19050-08-DarkSea/Assets/Scripts/tuio_event.cs
index ebd9272..6331f97 100644
--- a/08_DarkSea/Unity-19050-08-DarkSea/19050-08-DarkSea/Assets/Scripts/tuio_event.cs
+++ b/08_DarkSea/Unity-19050-08-DarkSea/19050-08-DarkSea/Assets/Scripts/tuio_event.cs
@@ -34,6 +34,9 @@ public class tuio_event : MonoBehaviour
     [Range(0.01f, 5f)]
     public float img_wait_sec = 2f;
 
+    [Config]
+    [Range(0.01f, 1.0f)]
+    public float snow_alpha_max = 1.0f;
     //[Config]
     //[Range(0f, 1f)]
     //public float audio_volume = 1f;
@@ -57,6 +60,7 @@ public class tuio_event : MonoBehaviour
                 movie.size = new Vector2(snow_size, snow_size);
                 //movie.volume = audio_volume;
                 movie.id = id;
+                movie.alpha_max = snow_alpha_max;
                 movies.Add(id, movie);
                 var rt = movie.transform as RectTransform;
                 rt.anchoredPosition = touches[id].position;