diff --git a/Assets/VRM10/Runtime/Components/Expression/ExpressionAccumulator.cs b/Assets/VRM10/Runtime/Components/Expression/ExpressionAccumulator.cs
index 96717436e..5905c8d70 100644
--- a/Assets/VRM10/Runtime/Components/Expression/ExpressionAccumulator.cs
+++ b/Assets/VRM10/Runtime/Components/Expression/ExpressionAccumulator.cs
@@ -3,173 +3,101 @@ using System.Linq;
 
 namespace UniVRM10
 {
-    /// <summary>
-    /// １フレーム分の Expression を蓄える
-    /// </summary>
-    public interface IExpressionAccumulator
-    {
-        /// <summary>
-        /// 開始時に初期化する
-        /// </summary>
-        /// <param name="avatar"></param>
-        void OnStart(VRM10ExpressionAvatar avatar);
-
-        /// <summary>
-        /// 蓄えて処理(ignoreフラグなど)した結果を得る
-        /// </summary>
-        /// <returns></returns>
-        IEnumerable<KeyValuePair<ExpressionKey, float>> FrameExpression();
-
-        void SetValue(ExpressionKey key, float value);
-        void SetValues(IEnumerable<KeyValuePair<ExpressionKey, float>> values);
-        float GetValue(ExpressionKey key);
-        IEnumerable<KeyValuePair<ExpressionKey, float>> GetValues();
-
-        bool IgnoreBlink { get; }
-        bool IgnoreLookAt { get; }
-        bool IgnoreMouth { get; }
-    }
-
-    public static class ExpressionAccumulatorExtensions
-    {
-        public static float GetPresetValue(this IExpressionAccumulator self, VrmLib.ExpressionPreset key)
-        {
-            var expressionKey = new ExpressionKey(key);
-            return self.GetValue(expressionKey);
-        }
-
-        public static float GetCustomValue(this IExpressionAccumulator self, string key)
-        {
-            var expressionKey = ExpressionKey.CreateCustom(key);
-            return self.GetValue(expressionKey);
-        }
-
-        public static void SetPresetValue(this IExpressionAccumulator self, VrmLib.ExpressionPreset key, float value)
-        {
-            var expressionKey = new ExpressionKey(key);
-            self.SetValue(expressionKey, value);
-        }
-
-        public static void SetCustomValue(this IExpressionAccumulator self, string key, float value)
-        {
-            var expressionKey = ExpressionKey.CreateCustom(key);
-            self.SetValue(expressionKey, value);
-        }
-    }
-
     public class DefaultExpressionAccumulator : IExpressionAccumulator
     {
-        bool m_ignoreBlink;
-        bool m_ignoreLookAt;
-        bool m_ignoreMouth;
-
-        public bool IgnoreBlink => m_ignoreBlink;
-        public bool IgnoreLookAt => m_ignoreLookAt;
-        public bool IgnoreMouth => m_ignoreMouth;
-
-        public Dictionary<ExpressionKey, float> expressionKeyWeights = new Dictionary<ExpressionKey, float>();
-
-        List<ExpressionKey> m_blinkExpressionKeys = new List<ExpressionKey>();
-        List<ExpressionKey> m_lookAtExpressionKeys = new List<ExpressionKey>();
-        List<ExpressionKey> m_mouthExpressionKeys = new List<ExpressionKey>();
-
-        /// <summary>
-        /// Key から Expression を得る
-        /// </summary>
         Dictionary<ExpressionKey, VRM10Expression> m_clipMap;
 
+        Dictionary<ExpressionKey, float> expressionKeyWeights = new Dictionary<ExpressionKey, float>();
+
+        public bool IgnoreBlink { get; private set; }
+        public bool IgnoreLookAt { get; private set; }
+        public bool IgnoreMouth { get; private set; }
+
+        /// <summary>
+        /// initilaize
+        /// </summary>
+        /// <param name="avatar"></param>
         public void OnStart(VRM10ExpressionAvatar avatar)
         {
             m_clipMap = avatar.Clips.ToDictionary(x => ExpressionKey.CreateFromClip(x), x => x);
-
             expressionKeyWeights = m_clipMap.Keys.ToDictionary(x => x, x => 0.0f);
-
-            m_blinkExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.Blink));
-            m_blinkExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.BlinkLeft));
-            m_blinkExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.BlinkRight));
-            m_lookAtExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.LookUp));
-            m_lookAtExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.LookDown));
-            m_lookAtExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.LookLeft));
-            m_lookAtExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.LookRight));
-            m_mouthExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.Aa));
-            m_mouthExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.Ih));
-            m_mouthExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.Ou));
-            m_mouthExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.Ee));
-            m_mouthExpressionKeys.Add(m_clipMap.Keys.FirstOrDefault(x => x.Preset == VrmLib.ExpressionPreset.Oh));
-        }
-
-        public VRM10Expression GetClip(ExpressionKey key)
-        {
-            if (m_clipMap.ContainsKey(key))
-            {
-                return m_clipMap[key];
-            }
-            else
-            {
-                return null;
-            }
-        }
-
-        public IEnumerable<KeyValuePair<ExpressionKey, float>> FrameExpression()
-        {
-            var validateState = GetValidateState();
-            m_ignoreBlink = validateState.ignoreBlink;
-            m_ignoreLookAt = validateState.ignoreLookAt;
-            m_ignoreMouth = validateState.ignoreMouth;
-
-            return expressionKeyWeights
-                .Where(x =>
-                {
-                    // skip ignore
-                    if (validateState.ignoreBlink)
-                    {
-                        switch (x.Key.Preset)
-                        {
-                            case VrmLib.ExpressionPreset.Blink:
-                            case VrmLib.ExpressionPreset.BlinkLeft:
-                            case VrmLib.ExpressionPreset.BlinkRight:
-                                return false;
-                        }
-                    }
-                    if (validateState.ignoreMouth)
-                    {
-                        switch (x.Key.Preset)
-                        {
-                            case VrmLib.ExpressionPreset.Aa:
-                            case VrmLib.ExpressionPreset.Ih:
-                            case VrmLib.ExpressionPreset.Ou:
-                            case VrmLib.ExpressionPreset.Ee:
-                            case VrmLib.ExpressionPreset.Oh:
-                                return false;
-                        }
-                    }
-                    if (validateState.ignoreLookAt)
-                    {
-                        switch (x.Key.Preset)
-                        {
-                            case VrmLib.ExpressionPreset.LookUp:
-                            case VrmLib.ExpressionPreset.LookDown:
-                            case VrmLib.ExpressionPreset.LookLeft:
-                            case VrmLib.ExpressionPreset.LookRight:
-                                return false;
-                        }
-                    }
-
-                    return true;
-                })
-                .Select(x => new KeyValuePair<ExpressionKey, float>(x.Key, x.Value));
         }
 
         /// <summary>
-        /// SetValue
+        /// each frame
         /// </summary>
-        /// <param name="key"></param>
-        /// <param name="value"></param>
-        public void SetValue(ExpressionKey key, float value)
+        /// <returns></returns>
+        public IEnumerable<KeyValuePair<ExpressionKey, float>> FrameExpression()
         {
-            if (expressionKeyWeights.ContainsKey(key))
+            IgnoreBlink = false;
+            IgnoreLookAt = false;
+            IgnoreMouth = false;
+
+            //
+            // except blink, lookat, mouth
+            //
+            foreach (var kv in expressionKeyWeights)
             {
-                expressionKeyWeights[key] = value;
+                if (kv.Key.IsProcedual)
+                {
+                    // 後で
+                    continue;
+                }
+
+                var expression = m_clipMap[kv.Key];
+
+                if (expression.IgnoreBlink && kv.Value > 0)
+                {
+                    IgnoreBlink = true;
+                }
+                if (expression.IgnoreLookAt && kv.Value > 0)
+                {
+                    IgnoreLookAt = true;
+                }
+                if (expression.IgnoreMouth && kv.Value > 0)
+                {
+                    IgnoreMouth = true;
+                }
+
+                yield return kv;
+            }
+
+            //
+            // blink, lookat, mouth
+            //
+            foreach (var kv in expressionKeyWeights)
+            {
+                if (kv.Key.IsBlink)
+                {
+                    if (IgnoreBlink)
+                    {
+                        // skip
+                        continue;
+                    }
+                }
+                else if (kv.Key.IsLookAt)
+                {
+                    if (IgnoreLookAt)
+                    {
+                        // skip
+                        continue;
+                    }
+                }
+                else if (kv.Key.IsMouth)
+                {
+                    if (IgnoreMouth)
+                    {
+                        // skip
+                        continue;
+                    }
+                }
+                else
+                {
+                    // already return
+                    continue;
+                }
+
+                yield return kv;
             }
         }
 
@@ -196,9 +124,18 @@ namespace UniVRM10
         }
 
         /// <summary>
-        /// Set expression values.
+        /// SetValue
         /// </summary>
-        /// <param name="values"></param>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void SetValue(ExpressionKey key, float value)
+        {
+            if (expressionKeyWeights.ContainsKey(key))
+            {
+                expressionKeyWeights[key] = value;
+            }
+        }
+
         public void SetValues(IEnumerable<KeyValuePair<ExpressionKey, float>> values)
         {
             foreach (var keyValue in values)
@@ -209,45 +146,5 @@ namespace UniVRM10
                 }
             }
         }
-
-        public IEnumerable<ExpressionKey> GetKeys()
-        {
-            return expressionKeyWeights.Keys;
-        }
-
-        private (bool ignoreBlink, bool ignoreLookAt, bool ignoreMouth) GetValidateState()
-        {
-            var ignoreBlink = false;
-            var ignoreLookAt = false;
-            var ignoreMouth = false;
-
-            foreach (var keyWeight in expressionKeyWeights)
-            {
-                if (keyWeight.Value <= 0.0f)
-                    continue;
-
-                // Blink
-                if (!ignoreBlink && GetClip(keyWeight.Key).IgnoreBlink && !m_blinkExpressionKeys.Contains(keyWeight.Key))
-                {
-                    ignoreBlink = true;
-                }
-
-                // LookAt
-                if (!ignoreLookAt && GetClip(keyWeight.Key).IgnoreLookAt && !m_lookAtExpressionKeys.Contains(keyWeight.Key))
-                {
-                    ignoreLookAt = true;
-                }
-
-                // Mouth
-                if (!ignoreMouth && GetClip(keyWeight.Key).IgnoreMouth && !m_mouthExpressionKeys.Contains(keyWeight.Key))
-                {
-                    ignoreMouth = true;
-                }
-            }
-
-            return (ignoreBlink, ignoreLookAt, ignoreMouth);
-        }
-
     }
-
 }
diff --git a/Assets/VRM10/Runtime/Components/Expression/ExpressionKey.cs b/Assets/VRM10/Runtime/Components/Expression/ExpressionKey.cs
index 9237653e3..c09cd6b4f 100644
--- a/Assets/VRM10/Runtime/Components/Expression/ExpressionKey.cs
+++ b/Assets/VRM10/Runtime/Components/Expression/ExpressionKey.cs
@@ -27,6 +27,56 @@ namespace UniVRM10
 
         public VrmLib.ExpressionPreset Preset;
 
+        public bool IsBlink
+        {
+            get
+            {
+                switch (Preset)
+                {
+                    case VrmLib.ExpressionPreset.Blink:
+                    case VrmLib.ExpressionPreset.BlinkLeft:
+                    case VrmLib.ExpressionPreset.BlinkRight:
+                        return true;
+                }
+                return false;
+            }
+        }
+
+        public bool IsLookAt
+        {
+            get
+            {
+                switch (Preset)
+                {
+                    case VrmLib.ExpressionPreset.LookUp:
+                    case VrmLib.ExpressionPreset.LookDown:
+                    case VrmLib.ExpressionPreset.LookLeft:
+                    case VrmLib.ExpressionPreset.LookRight:
+                        return true;
+                }
+                return false;
+            }
+        }
+
+        public bool IsMouth
+        {
+            get
+            {
+                switch (Preset)
+                {
+                    case VrmLib.ExpressionPreset.Aa:
+                    case VrmLib.ExpressionPreset.Ih:
+                    case VrmLib.ExpressionPreset.Ou:
+                    case VrmLib.ExpressionPreset.Ee:
+                    case VrmLib.ExpressionPreset.Oh:
+                        return true;
+                }
+                return false;
+            }
+        }
+
+        public bool IsProcedual => IsBlink || IsLookAt || IsMouth;
+
         string m_id;
 
         string ID
@@ -147,4 +197,5 @@ namespace UniVRM10
             return 0;
         }
     }
+
 }
diff --git a/Assets/VRM10/Runtime/Components/Expression/IExpressionAccumulator.cs b/Assets/VRM10/Runtime/Components/Expression/IExpressionAccumulator.cs
new file mode 100644
index 000000000..49c7301dc
--- /dev/null
+++ b/Assets/VRM10/Runtime/Components/Expression/IExpressionAccumulator.cs
@@ -0,0 +1,58 @@
+using System.Collections.Generic;
+
+namespace UniVRM10
+{
+    /// <summary>
+    /// １フレーム分の Expression を蓄える
+    /// </summary>
+    public interface IExpressionAccumulator
+    {
+        /// <summary>
+        /// 開始時に初期化する
+        /// </summary>
+        /// <param name="avatar"></param>
+        void OnStart(VRM10ExpressionAvatar avatar);
+
+        /// <summary>
+        /// 蓄えて処理(ignoreフラグなど)した結果を得る
+        /// </summary>
+        /// <returns></returns>
+        IEnumerable<KeyValuePair<ExpressionKey, float>> FrameExpression();
+
+        void SetValue(ExpressionKey key, float value);
+        void SetValues(IEnumerable<KeyValuePair<ExpressionKey, float>> values);
+        float GetValue(ExpressionKey key);
+        IEnumerable<KeyValuePair<ExpressionKey, float>> GetValues();
+
+        bool IgnoreBlink { get; }
+        bool IgnoreLookAt { get; }
+        bool IgnoreMouth { get; }
+    }
+
+    public static class ExpressionAccumulatorExtensions
+    {
+        public static float GetPresetValue(this IExpressionAccumulator self, VrmLib.ExpressionPreset key)
+        {
+            var expressionKey = new ExpressionKey(key);
+            return self.GetValue(expressionKey);
+        }
+
+        public static float GetCustomValue(this IExpressionAccumulator self, string key)
+        {
+            var expressionKey = ExpressionKey.CreateCustom(key);
+            return self.GetValue(expressionKey);
+        }
+
+        public static void SetPresetValue(this IExpressionAccumulator self, VrmLib.ExpressionPreset key, float value)
+        {
+            var expressionKey = new ExpressionKey(key);
+            self.SetValue(expressionKey, value);
+        }
+
+        public static void SetCustomValue(this IExpressionAccumulator self, string key, float value)
+        {
+            var expressionKey = ExpressionKey.CreateCustom(key);
+            self.SetValue(expressionKey, value);
+        }
+    }
+}
diff --git a/Assets/VRM10/Runtime/Components/Expression/IExpressionAccumulator.cs.meta b/Assets/VRM10/Runtime/Components/Expression/IExpressionAccumulator.cs.meta
new file mode 100644
index 000000000..c855193a0
--- /dev/null
+++ b/Assets/VRM10/Runtime/Components/Expression/IExpressionAccumulator.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: fdd7cdf6d59574348bb7336272ef5edf
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: