diff --git a/Assets/VRM10/Runtime/Components/VrmAnimationInstance/TPose.cs b/Assets/VRM10/Runtime/Components/VrmAnimationInstance/TPose.cs
new file mode 100644
index 000000000..96e763cfa
--- /dev/null
+++ b/Assets/VRM10/Runtime/Components/VrmAnimationInstance/TPose.cs
@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using UniGLTF.Utils;
+using UnityEngine;
+
+namespace UniVRM10
+{
+    public class TPose : IVrm10Animation
+    {
+        public class NoRotation : INormalizedPoseProvider
+        {
+            readonly Vector3 m_hips;
+
+            public NoRotation(Vector3 hips)
+            {
+                m_hips = hips;
+            }
+
+            public Quaternion GetNormalizedLocalRotation(HumanBodyBones bone, HumanBodyBones parentBone)
+            {
+                return new Quaternion(0, 0, 0, 1);
+            }
+
+            public Vector3 GetRawHipsPosition()
+            {
+                return m_hips;
+            }
+        }
+
+        public class Skeleton : ITPoseProvider
+        {
+            Vector3 m_hips;
+            public Skeleton(Vector3 hips)
+            {
+                m_hips = hips;
+            }
+
+            public EuclideanTransform? GetWorldTransform(HumanBodyBones bone)
+            {
+                if (bone == HumanBodyBones.Hips)
+                {
+                    return new EuclideanTransform(m_hips);
+                }
+                return default;
+            }
+        }
+
+        public (INormalizedPoseProvider, ITPoseProvider) m_controlRig;
+
+        public (INormalizedPoseProvider, ITPoseProvider) ControlRig => m_controlRig;
+
+        // empty
+        public IReadOnlyDictionary<ExpressionKey, Func<float>> ExpressionMap => new Dictionary<ExpressionKey, Func<float>>();
+
+        public LookAtInput? LookAt => default;
+
+        public TPose(Vector3 hips)
+        {
+            m_controlRig = (new NoRotation(hips), new Skeleton(hips));
+        }
+
+        public void Dispose()
+        {
+        }
+
+        public void ShowBoxMan(bool enable)
+        {
+        }
+    }
+}
\ No newline at end of file
diff --git a/Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs.meta b/Assets/VRM10/Runtime/Components/VrmAnimationInstance/TPose.cs.meta
similarity index 83%
rename from Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs.meta
rename to Assets/VRM10/Runtime/Components/VrmAnimationInstance/TPose.cs.meta
index 51e773495..1052a38e1 100644
--- a/Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs.meta
+++ b/Assets/VRM10/Runtime/Components/VrmAnimationInstance/TPose.cs.meta
@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 49423dc9e9a224545a90221f41d975c8
+guid: 90e77483e976b074db9a08fcdc1b5d40
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2
diff --git a/Assets/VRM10/Runtime/ControlRig/Vrm10Retarget.cs b/Assets/VRM10/Runtime/ControlRig/Vrm10Retarget.cs
index 045be6766..53abe0bef 100644
--- a/Assets/VRM10/Runtime/ControlRig/Vrm10Retarget.cs
+++ b/Assets/VRM10/Runtime/ControlRig/Vrm10Retarget.cs
@@ -13,7 +13,8 @@ namespace UniVRM10
             }
 
             // scaling hips position
-            var scaling = sink.TPose.GetWorldTransform(HumanBodyBones.LeftUpperLeg).Value.Translation.y / source.TPose.GetWorldTransform(HumanBodyBones.LeftUpperLeg).Value.Translation.y;
+            var scaleRef = HumanBodyBones.Hips;
+            var scaling = sink.TPose.GetWorldTransform(scaleRef).Value.Translation.y / source.TPose.GetWorldTransform(scaleRef).Value.Translation.y;
             var delta = source.Pose.GetRawHipsPosition() - source.TPose.GetWorldTransform(HumanBodyBones.Hips).Value.Translation;
             sink.Pose.SetRawHipsPosition(sink.TPose.GetWorldTransform(HumanBodyBones.Hips).Value.Translation + delta * scaling);
         }
diff --git a/Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs b/Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs
deleted file mode 100644
index 2d91fb3e6..000000000
--- a/Assets/VRM10_Samples/VRM10Viewer/VRM10Retarget.cs
+++ /dev/null
@@ -1,31 +0,0 @@
-using UnityEngine;
-
-namespace UniVRM10.VRM10Viewer
-{
-    public static class VRM10Retarget
-    {
-        public static void Retarget((INormalizedPoseProvider Pose, ITPoseProvider TPose) source, (INormalizedPoseApplicable Pose, ITPoseProvider TPose) sink)
-        {
-            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.GetWorldTransform(HumanBodyBones.LeftUpperLeg).Value.Translation.y / source.TPose.GetWorldTransform(HumanBodyBones.LeftUpperLeg).Value.Translation.y;
-            var delta = source.Pose.GetRawHipsPosition() - source.TPose.GetWorldTransform(HumanBodyBones.Hips).Value.Translation;
-            sink.Pose.SetRawHipsPosition(sink.TPose.GetWorldTransform(HumanBodyBones.Hips).Value.Translation + delta * scaling);
-        }
-
-        public static void EnforceTPose((INormalizedPoseApplicable Pose, ITPoseProvider TPose) sink)
-        {
-            foreach (var (bone, parent) in sink.TPose.EnumerateBoneParentPairs())
-            {
-                sink.Pose.SetNormalizedLocalRotation(bone, Quaternion.identity);
-            }
-
-            sink.Pose.SetRawHipsPosition(sink.TPose.GetWorldTransform(HumanBodyBones.Hips).Value.Translation);
-        }
-    }
-}
diff --git a/Assets/VRM10_Samples/VRM10Viewer/VRM10ViewerUI.cs b/Assets/VRM10_Samples/VRM10Viewer/VRM10ViewerUI.cs
index 9a813670f..2c057385a 100644
--- a/Assets/VRM10_Samples/VRM10Viewer/VRM10ViewerUI.cs
+++ b/Assets/VRM10_Samples/VRM10Viewer/VRM10ViewerUI.cs
@@ -61,9 +61,13 @@ namespace UniVRM10.VRM10Viewer
                     m_src.Dispose();
                 }
                 m_src = value;
+
+                TPose = new TPose(m_src.ControlRig.Item1.GetRawHipsPosition());
             }
         }
 
+        public IVrm10Animation TPose;
+
         private CancellationTokenSource _cancellationTokenSource;
 
         [Serializable]
@@ -209,13 +213,13 @@ namespace UniVRM10.VRM10Viewer
                 ToggleMotion = groups.First(x => x.name == "_Motion_");
             }
 
-            public bool IsBvhEnabled
+            public bool IsTPose
             {
-                get => ToggleMotion.ActiveToggles().FirstOrDefault() == ToggleMotionBVH;
+                get => ToggleMotion.ActiveToggles().FirstOrDefault() == ToggleMotionTPose;
                 set
                 {
-                    ToggleMotionTPose.isOn = !value;
-                    ToggleMotionBVH.isOn = value;
+                    ToggleMotionTPose.isOn = value;
+                    ToggleMotionBVH.isOn = !value;
                 }
             }
         }
@@ -331,7 +335,7 @@ namespace UniVRM10.VRM10Viewer
             _cancellationTokenSource?.Dispose();
         }
 
-        bool? m_lastUseBvh = default;
+
         private void Update()
         {
             if (Input.GetKeyDown(KeyCode.Tab))
@@ -357,31 +361,19 @@ namespace UniVRM10.VRM10Viewer
                 m_loaded.EnableLipSyncValue = m_enableLipSync.isOn;
                 m_loaded.EnableBlinkValue = m_enableAutoBlink.isOn;
                 m_loaded.EnableAutoExpressionValue = m_enableAutoExpression.isOn;
+            }
 
-                var useBvh = Motion != null;
-                if (useBvh)
+            if (m_loaded != null)
+            {
+                if (m_ui.IsTPose)
                 {
-                    // update humanoid
-                    if (Motion.ControlRig.Item1 != null && Motion.ControlRig.Item2 != null)
-                    {
-                        VRM10Retarget.Retarget(Motion.ControlRig, (m_loaded.ControlRig, m_loaded.ControlRig));
-                    }
-                    // update expressions
-                    foreach (var (k, v) in Motion.ExpressionMap)
-                    {
-                        // VRMA-expression use localPosition.x as expression weight
-                        m_loaded.Runtime.Expression.SetWeight(k, v());
-                    }
+                    m_loaded.Runtime.VrmAnimation = TPose;
                 }
-                else
+                else if (Motion != null)
                 {
-                    if (!m_lastUseBvh.HasValue || m_lastUseBvh.Value)
-                    {
-                        Debug.Log("SetPose");
-                        VRM10Retarget.EnforceTPose((m_loaded.ControlRig, m_loaded.ControlRig));
-                    }
+                    // Automatically retarget in Vrm10Runtime.Process
+                    m_loaded.Runtime.VrmAnimation = Motion;
                 }
-                m_lastUseBvh = useBvh;
             }
         }
 
@@ -446,9 +438,6 @@ namespace UniVRM10.VRM10Viewer
                 return;
             }
 
-            m_ui.IsBvhEnabled = false;
-            m_lastUseBvh = false;
-
             try
             {
                 Motion = await Vrm10PoseLoader.LoadVrmAnimationPose(text);