diff --git a/Assets/VRM10/Editor/Components/VRM10ControllerEditor.cs b/Assets/VRM10/Editor/Components/VRM10ControllerEditor.cs
index 5190aca3a..5d652011e 100644
--- a/Assets/VRM10/Editor/Components/VRM10ControllerEditor.cs
+++ b/Assets/VRM10/Editor/Components/VRM10ControllerEditor.cs
@@ -179,9 +179,9 @@ namespace UniVRM10
             EditorGUILayout.LabelField("Override weights", EditorStyles.boldLabel);
             EditorGUI.BeginDisabledGroup(true);
             {
-                EditorGUILayout.Slider("Blink override weight", m_target.Expression.OverrideBlinkWeight, 0f, 1f);
-                EditorGUILayout.Slider("LookAt override weight", m_target.Expression.OverrideLookAtWeight, 0f, 1f);
-                EditorGUILayout.Slider("Mouth override weight", m_target.Expression.OverrideMouthWeight, 0f, 1f);
+                EditorGUILayout.Slider("Blink nullify weight", m_target.Expression.BlinkNullifyWeight, 0f, 1f);
+                EditorGUILayout.Slider("LookAt nullify weight", m_target.Expression.LookAtNullifyWeight, 0f, 1f);
+                EditorGUILayout.Slider("Mouth nullify weight", m_target.Expression.MouthNullifyWeight, 0f, 1f);
             }
             EditorGUI.EndDisabledGroup();
 
diff --git a/Assets/VRM10/Runtime/Components/Expression/DefaultExpressionValidator.cs b/Assets/VRM10/Runtime/Components/Expression/DefaultExpressionValidator.cs
index e06fb2381..589a39b3c 100644
--- a/Assets/VRM10/Runtime/Components/Expression/DefaultExpressionValidator.cs
+++ b/Assets/VRM10/Runtime/Components/Expression/DefaultExpressionValidator.cs
@@ -10,7 +10,8 @@ namespace UniVRM10
             
         }
         
-        public void Validate(IReadOnlyDictionary<ExpressionKey, float> inputWeights, IDictionary<ExpressionKey, float> actualWeights)
+        public void Validate(IReadOnlyDictionary<ExpressionKey, float> inputWeights, IDictionary<ExpressionKey, float> actualWeights, out float blinkNullifyWeight,
+            out float lookAtNullifyWeight, out float mouthNullifyWeight)
         {
             foreach (var (key, weight) in inputWeights)
             {
@@ -21,6 +22,10 @@ namespace UniVRM10
 
                 actualWeights[key] = weight;
             }
+
+            blinkNullifyWeight = 0f;
+            lookAtNullifyWeight = 0f;
+            mouthNullifyWeight = 0f;
         }
 
         public sealed class Factory : IExpressionValidatorFactory
diff --git a/Assets/VRM10/Runtime/Components/Expression/IExpressionValidator.cs b/Assets/VRM10/Runtime/Components/Expression/IExpressionValidator.cs
index 8f6aad267..43f69b7e9 100644
--- a/Assets/VRM10/Runtime/Components/Expression/IExpressionValidator.cs
+++ b/Assets/VRM10/Runtime/Components/Expression/IExpressionValidator.cs
@@ -10,6 +10,7 @@ namespace UniVRM10
         /// <summary>
         /// Validate input weights with Expression constraints.
         /// </summary>
-        void Validate(IReadOnlyDictionary<ExpressionKey, float> inputWeights, IDictionary<ExpressionKey, float> actualWeights);
+        void Validate(IReadOnlyDictionary<ExpressionKey, float> inputWeights, IDictionary<ExpressionKey, float> actualWeights,
+            out float blinkNullifyWeight, out float lookAtNullifyWeight, out float mouthNullifyWeight);
     }
 }
\ No newline at end of file
diff --git a/Assets/VRM10/Runtime/Components/VRM10ControllerExpression.cs b/Assets/VRM10/Runtime/Components/VRM10ControllerExpression.cs
index d4ecfd489..447ffb83a 100644
--- a/Assets/VRM10/Runtime/Components/VRM10ControllerExpression.cs
+++ b/Assets/VRM10/Runtime/Components/VRM10ControllerExpression.cs
@@ -23,9 +23,9 @@ namespace UniVRM10
         public IReadOnlyList<ExpressionKey> ExpressionKeys => _keys;
         public IReadOnlyDictionary<ExpressionKey, float> ActualWeights => _actualWeights;
         
-        public float OverrideBlinkWeight { get; private set; }
-        public float OverrideLookAtWeight { get; private set; }
-        public float OverrideMouthWeight { get; private set; }
+        public float BlinkNullifyWeight { get; private set; }
+        public float LookAtNullifyWeight { get; private set; }
+        public float MouthNullifyWeight { get; private set; }
         
         public void Dispose()
         {
@@ -93,8 +93,11 @@ namespace UniVRM10
         /// </summary>
         private void Apply()
         {
-            _validator.Validate(_inputWeights, _actualWeights);
+            _validator.Validate(_inputWeights, _actualWeights, out var blink, out var lookAt, out var mouth);
             _merger.SetValues(_actualWeights);
+            BlinkNullifyWeight = blink;
+            LookAtNullifyWeight = lookAt;
+            MouthNullifyWeight = mouth;
         }
     }
 }