diff --git a/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10Runtime.cs b/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10Runtime.cs
index 1e74ccca6..fbe655c63 100644
--- a/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10Runtime.cs
+++ b/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10Runtime.cs
@@ -56,7 +56,7 @@ namespace UniVRM10
                 ControlRig = new Vrm10RuntimeControlRig(instance.Humanoid, m_instance.transform);
             }
             Constraints = instance.GetComponentsInChildren<IVrm10Constraint>();
-            LookAt = new Vrm10RuntimeLookAt(instance.Vrm.LookAt, instance.Humanoid, ControlRig);
+            LookAt = new Vrm10RuntimeLookAt(instance, instance.Humanoid, ControlRig);
             Expression = new Vrm10RuntimeExpression(instance, LookAt.EyeDirectionApplicable);
             SpringBone = springBoneRuntime;
         }
diff --git a/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10RuntimeLookAt.cs b/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10RuntimeLookAt.cs
index c7b3d0c1d..72a07711b 100644
--- a/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10RuntimeLookAt.cs
+++ b/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10RuntimeLookAt.cs
@@ -38,13 +38,25 @@ namespace UniVRM10
         /// </summary>
         public Transform LookAtOriginTransform { get; }
 
-        internal Vrm10RuntimeLookAt(VRM10ObjectLookAt lookAt, UniHumanoid.Humanoid humanoid, Vrm10RuntimeControlRig controlRig)
+        internal Vrm10RuntimeLookAt(Vrm10Instance instance, UniHumanoid.Humanoid humanoid, Vrm10RuntimeControlRig controlRig)
         {
-            _lookAt = lookAt;
-            LookAtOriginTransform = InitializeLookAtOriginTransform(
-                humanoid.Head,
-                controlRig != null ? controlRig.GetBoneTransform(HumanBodyBones.Head) : humanoid.Head,
-                _lookAt.OffsetFromHead);
+            _lookAt = instance.Vrm.LookAt;
+
+            // 視点計算用の empty object
+            LookAtOriginTransform = new GameObject("_look_at_origin_").transform;
+            if (controlRig != null)
+            {
+                // controlRig に連結
+                LookAtOriginTransform.SetParent(controlRig.GetBoneTransform(HumanBodyBones.Head));
+            }
+            else
+            {
+                // 直接連結
+                LookAtOriginTransform.SetParent(humanoid.Head);
+            }
+            LookAtOriginTransform.position = humanoid.Head.TransformPoint(_lookAt.OffsetFromHead);
+            LookAtOriginTransform.rotation = instance.transform.rotation;
+
             _lookAtOriginTransformLocalPosition = LookAtOriginTransform.localPosition;
             _lookAtOriginTransformLocalRotation = LookAtOriginTransform.localRotation;
 
@@ -96,17 +108,6 @@ namespace UniVRM10
             return (yaw, pitch);
         }
 
-        private static Transform InitializeLookAtOriginTransform(Transform rawHead, Transform actualHead, Vector3 eyeOffsetValue)
-        {
-            // NOTE: このメソッドを実行するとき、モデル全体は初期姿勢（T-Pose）でなければならない。
-            var lookAtOrigin = new GameObject("_look_at_origin_").transform;
-            lookAtOrigin.SetParent(actualHead);
-            lookAtOrigin.position = rawHead.TransformPoint(eyeOffsetValue);
-            lookAtOrigin.rotation = Quaternion.identity;
-
-            return lookAtOrigin;
-        }
-
         #region Obsolete
         [Obsolete("Use " + nameof(LookAtOriginTransform))]
         public Transform GetLookAtOrigin(Transform head)