diff --git a/Assets/VRM10/Runtime/Components/Vrm10Runtime/ControlRig/Vrm10RuntimeControlRig.cs b/Assets/VRM10/Runtime/Components/Vrm10Runtime/ControlRig/Vrm10RuntimeControlRig.cs
index c0d641a58..bb9a4da1c 100644
--- a/Assets/VRM10/Runtime/Components/Vrm10Runtime/ControlRig/Vrm10RuntimeControlRig.cs
+++ b/Assets/VRM10/Runtime/Components/Vrm10Runtime/ControlRig/Vrm10RuntimeControlRig.cs
@@ -73,7 +73,7 @@ namespace UniVRM10
         }
 
         #region INormalizedPoseApplicable
-        public void SetHipsPosition(Vector3 position)
+        public void SetRawHipsPosition(Vector3 position)
         {
             var world = _controlRigRoot.TransformPoint(position);
             _hipBone.ControlBone.position = world;
@@ -102,7 +102,7 @@ namespace UniVRM10
         }
 
         #region ITPoseProvider
-        public IEnumerable<(HumanBodyBones Head, HumanBodyBones Parent)> EnumerateBones()
+        public IEnumerable<(HumanBodyBones Head, HumanBodyBones Parent)> EnumerateBoneParentPairs()
         {
             foreach (var headParent in Traverse(_hipBone))
             {
@@ -112,12 +112,12 @@ namespace UniVRM10
 
         public Vector3 HipTPoseWorldPosition { get; }
 
-        public Quaternion GetBoneTPoseWorldRotation(HumanBodyBones bone)
+        public Quaternion GetBoneWorldRotation(HumanBodyBones bone)
         {
             return Quaternion.identity;
         }
 
-        public Vector3 GetBoneTPoseWorldPosition(HumanBodyBones bone)
+        public Vector3 GetBoneWorldPosition(HumanBodyBones bone)
         {
             return _bones[bone].InitialTargetGlobalPosition;
         }
diff --git a/Assets/VRM10/Runtime/ControlRig/AnimatorPoseProvider.cs b/Assets/VRM10/Runtime/ControlRig/AnimatorPoseProvider.cs
index b29fd971c..fc49e89cf 100644
--- a/Assets/VRM10/Runtime/ControlRig/AnimatorPoseProvider.cs
+++ b/Assets/VRM10/Runtime/ControlRig/AnimatorPoseProvider.cs
@@ -55,7 +55,7 @@ namespace UniVRM10
             }
         }
 
-        public Vector3 GetHipsPosition()
+        public Vector3 GetRawHipsPosition()
         {
             // TODO: from model root ?
             return m_animator.GetBoneTransform(HumanBodyBones.Hips).localPosition;
@@ -65,17 +65,17 @@ namespace UniVRM10
         #region ITPoseProvider
         public Vector3 HipTPoseWorldPosition { get; }
 
-        public Quaternion GetBoneTPoseWorldRotation(HumanBodyBones bone)
+        public Quaternion GetBoneWorldRotation(HumanBodyBones bone)
         {
             throw new System.NotImplementedException();
         }
 
-        public IEnumerable<(HumanBodyBones Head, HumanBodyBones Parent)> EnumerateBones()
+        public IEnumerable<(HumanBodyBones Head, HumanBodyBones Parent)> EnumerateBoneParentPairs()
         {
             throw new System.NotImplementedException();
         }
 
-        public Vector3 GetBoneTPoseWorldPosition(HumanBodyBones bone)
+        public Vector3 GetBoneWorldPosition(HumanBodyBones bone)
         {
             return m_posMap[bone];
         }
diff --git a/Assets/VRM10/Runtime/ControlRig/INormalizedPoseApplicable.cs b/Assets/VRM10/Runtime/ControlRig/INormalizedPoseApplicable.cs
index 6d265a60f..30367b223 100644
--- a/Assets/VRM10/Runtime/ControlRig/INormalizedPoseApplicable.cs
+++ b/Assets/VRM10/Runtime/ControlRig/INormalizedPoseApplicable.cs
@@ -5,7 +5,7 @@ namespace UniVRM10
 {
     public interface INormalizedPoseApplicable
     {
-        void SetHipsPosition(Vector3 position);
+        void SetRawHipsPosition(Vector3 position);
 
         void SetNormalizedLocalRotation(HumanBodyBones bone, Quaternion normalizedLocalRotation);
     }
diff --git a/Assets/VRM10/Runtime/ControlRig/INormalizedPoseProvider.cs b/Assets/VRM10/Runtime/ControlRig/INormalizedPoseProvider.cs
index 798b3e610..a4b6b6b9c 100644
--- a/Assets/VRM10/Runtime/ControlRig/INormalizedPoseProvider.cs
+++ b/Assets/VRM10/Runtime/ControlRig/INormalizedPoseProvider.cs
@@ -7,7 +7,7 @@ namespace UniVRM10
         /// <summary>
         /// Get hips position in model root space
         /// </summary>
-        Vector3 GetHipsPosition();
+        Vector3 GetRawHipsPosition();
 
         /// <summary>
         /// Get normalized local rotation
diff --git a/Assets/VRM10/Runtime/ControlRig/ITPoseProvider.cs b/Assets/VRM10/Runtime/ControlRig/ITPoseProvider.cs
index 56c8c87b1..c5c2a8c7a 100644
--- a/Assets/VRM10/Runtime/ControlRig/ITPoseProvider.cs
+++ b/Assets/VRM10/Runtime/ControlRig/ITPoseProvider.cs
@@ -5,31 +5,26 @@ namespace UniVRM10
 {
     public interface ITPoseProvider
     {
-        /// <summary>
-        /// * world は ModelRoot を意図していることに注意
-        /// </summary>
-        Vector3 HipTPoseWorldPosition { get; }
-
-        /// <summary>
-        /// * world は ModelRoot を意図していることに注意
-        /// * bone 無いときは Quaternion.Identity ?
-        /// </summary>
-        /// <param name="bone"></param>
-        /// <returns></returns>
-        Quaternion GetBoneTPoseWorldRotation(HumanBodyBones bone);
-
-        /// <summary>
-        /// * world は ModelRoot を意図していることに注意
-        /// * bone 無いときは Vector3.zero ?
-        /// </summary>
-        /// <param name="bone"></param>
-        /// <returns></returns>
-        Vector3 GetBoneTPoseWorldPosition(HumanBodyBones bone);
-
         /// <summary>
         /// ボーンを親ボーンとセットで列挙する</returns>
         /// </summary>
         /// <returns>hips の場合は parent は HumanBodyBones.LastBone で null を表す</returns>
-        IEnumerable<(HumanBodyBones Head, HumanBodyBones Parent)> EnumerateBones();
+        IEnumerable<(HumanBodyBones Head, HumanBodyBones Parent)> EnumerateBoneParentPairs();
+
+        /// <summary>
+        /// * bone 無いときは throw するべし
+        /// * EnumerateBoneParentPairs で事前に有無を確認できる
+        /// </summary>
+        /// <param name="bone"></param>
+        /// <returns></returns>
+        Quaternion GetBoneWorldRotation(HumanBodyBones bone);
+
+        /// <summary>
+        /// * bone 無いときは throw するべし
+        /// * EnumerateBoneParentPairs で事前に有無を確認できる
+        /// </summary>
+        /// <param name="bone"></param>
+        /// <returns></returns>
+        Vector3 GetBoneWorldPosition(HumanBodyBones bone);
     }
 }
diff --git a/Assets/VRM10/Runtime/ControlRig/InitialRotationPoseProvider.cs b/Assets/VRM10/Runtime/ControlRig/InitialRotationPoseProvider.cs
index 7ebbad0d8..62fb26a49 100644
--- a/Assets/VRM10/Runtime/ControlRig/InitialRotationPoseProvider.cs
+++ b/Assets/VRM10/Runtime/ControlRig/InitialRotationPoseProvider.cs
@@ -44,7 +44,7 @@ namespace UniVRM10
             }
         }
 
-        public Vector3 GetHipsPosition()
+        public Vector3 GetRawHipsPosition()
         {
             if (m_hips.parent == m_root)
             {
@@ -56,17 +56,17 @@ namespace UniVRM10
             }
         }
 
-        public Quaternion GetBoneTPoseWorldRotation(HumanBodyBones bone)
+        public Quaternion GetBoneWorldRotation(HumanBodyBones bone)
         {
             throw new System.NotImplementedException();
         }
 
-        public IEnumerable<(HumanBodyBones Head, HumanBodyBones Parent)> EnumerateBones()
+        public IEnumerable<(HumanBodyBones Head, HumanBodyBones Parent)> EnumerateBoneParentPairs()
         {
             throw new System.NotImplementedException();
         }
 
-        public Vector3 GetBoneTPoseWorldPosition(HumanBodyBones bone)
+        public Vector3 GetBoneWorldPosition(HumanBodyBones bone)
         {
             throw new System.NotImplementedException();
         }
diff --git a/Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs b/Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs
index 8875c1bcb..d21ff2a63 100644
--- a/Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs
+++ b/Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs
@@ -6,26 +6,26 @@ namespace UniVRM10
     {
         public static void Retarget((INormalizedPoseProvider Pose, ITPoseProvider TPose) source, (INormalizedPoseApplicable Pose, ITPoseProvider TPose) sink)
         {
-            foreach (var (head, parent) in sink.TPose.EnumerateBones())
+            foreach (var (head, parent) in sink.TPose.EnumerateBoneParentPairs())
             {
                 var q = source.Pose.GetNormalizedLocalRotation(head, parent);
                 sink.Pose.SetNormalizedLocalRotation(head, q);
             }
 
             // scaling hips position
-            var scaling = sink.TPose.GetBoneTPoseWorldPosition(HumanBodyBones.LeftUpperLeg).y / source.TPose.GetBoneTPoseWorldPosition(HumanBodyBones.LeftUpperLeg).y;
-            var delta = source.Pose.GetHipsPosition() - source.TPose.HipTPoseWorldPosition;
-            sink.Pose.SetHipsPosition(sink.TPose.HipTPoseWorldPosition + delta * scaling);
+            var scaling = sink.TPose.GetBoneWorldPosition(HumanBodyBones.LeftUpperLeg).y / source.TPose.GetBoneWorldPosition(HumanBodyBones.LeftUpperLeg).y;
+            var delta = source.Pose.GetRawHipsPosition() - source.TPose.GetBoneWorldPosition(HumanBodyBones.Hips);
+            sink.Pose.SetRawHipsPosition(sink.TPose.GetBoneWorldPosition(HumanBodyBones.Hips) + delta * scaling);
         }
 
         public static void EnforceTPose((INormalizedPoseApplicable Pose, ITPoseProvider TPose) sink)
         {
-            foreach (var (head, parent) in sink.TPose.EnumerateBones())
+            foreach (var (head, parent) in sink.TPose.EnumerateBoneParentPairs())
             {
                 sink.Pose.SetNormalizedLocalRotation(head, Quaternion.identity);
             }
 
-            sink.Pose.SetHipsPosition(sink.TPose.HipTPoseWorldPosition);
+            sink.Pose.SetRawHipsPosition(sink.TPose.GetBoneWorldPosition(HumanBodyBones.Hips));
         }
     }
 }