diff --git a/Assets/UniGLTF/Runtime/UniHumanoid/AvatarDescription.cs b/Assets/UniGLTF/Runtime/UniHumanoid/AvatarDescription.cs
index b5642e6d3..13b2e76c6 100644
--- a/Assets/UniGLTF/Runtime/UniHumanoid/AvatarDescription.cs
+++ b/Assets/UniGLTF/Runtime/UniHumanoid/AvatarDescription.cs
@@ -75,56 +75,6 @@ namespace UniHumanoid
         }
     }
 
-    class UniqueName
-    {
-        HashSet<string> m_uniqueNameSet = new HashSet<string>();
-        int m_counter = 1;
-
-        public void ForceUniqueName(Transform t)
-        {
-            if (!m_uniqueNameSet.Contains(t.name))
-            {
-                m_uniqueNameSet.Add(t.name);
-                return;
-            }
-
-            if (t.parent != null && t.childCount == 0)
-            {
-                /// AvatarBuilder:BuildHumanAvatar で同名の Transform があるとエラーになる。
-                /// 
-                /// AvatarBuilder 'GLTF': Ambiguous Transform '32/root/torso_1/torso_2/torso_3/torso_4/torso_5/torso_6/torso_7/neck_1/neck_2/head/ENDSITE' and '32/root/torso_1/torso_2/torso_3/torso_4/torso_5/torso_6/torso_7/l_shoulder/l_up_arm/l_low_arm/l_hand/ENDSITE' found in hierarchy for human bone 'Head'. Transform name mapped to a human bone must be unique.
-                /// UnityEngine.AvatarBuilder:BuildHumanAvatar (UnityEngine.GameObject,UnityEngine.HumanDescription)
-                /// UniHumanoid.AvatarDescription:CreateAvatar (UnityEngine.Transform) 
-                /// 
-                /// 主に BVH の EndSite 由来の GameObject 名が重複することへの対策
-                ///  ex: parent-ENDSITE
-                var newName = $"{t.parent.name}-{t.name}";
-                if (!m_uniqueNameSet.Contains(newName))
-                {
-                    Debug.LogWarning($"force rename: {t.name} => {newName}");
-                    t.name = newName;
-                    m_uniqueNameSet.Add(newName);
-                    return;
-                }
-            }
-
-            // 連番
-            for (int i = 0; i < 100; ++i)
-            {
-                // ex: name.1
-                var newName = $"{t.name}{m_counter++}";
-                if (!m_uniqueNameSet.Contains(newName))
-                {
-                    Debug.LogWarning($"force rename: {t.name} => {newName}");
-                    t.name = newName;
-                    m_uniqueNameSet.Add(newName);
-                    return;
-                }
-            }
-
-            throw new NotImplementedException();
-        }
-    }
 
     [Serializable]
     public class AvatarDescription : ScriptableObject
@@ -177,13 +127,7 @@ namespace UniHumanoid
         public Avatar CreateAvatar(Transform root)
         {
             // force unique name
-            var uniqueName = new UniqueName();
-            var transforms = root.GetComponentsInChildren<Transform>();
-            foreach (var t in transforms)
-            {
-                uniqueName.ForceUniqueName(t);
-            }
-
+            ForceUniqueName.Process(root);
             return AvatarBuilder.BuildHumanAvatar(root.gameObject, ToHumanDescription(root));
         }
 
diff --git a/Assets/UniGLTF/Runtime/UniHumanoid/ForceUniqueName.cs b/Assets/UniGLTF/Runtime/UniHumanoid/ForceUniqueName.cs
new file mode 100644
index 000000000..4b3c0f0a6
--- /dev/null
+++ b/Assets/UniGLTF/Runtime/UniHumanoid/ForceUniqueName.cs
@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace UniHumanoid
+{
+    class ForceUniqueName
+    {
+        HashSet<string> m_uniqueNameSet = new HashSet<string>();
+        int m_counter = 1;
+
+        public static void Process(Transform root)
+        {
+            var uniqueName = new ForceUniqueName();
+            var transforms = root.GetComponentsInChildren<Transform>();
+            foreach (var t in transforms)
+            {
+                uniqueName.RenameIfDupName(t);
+            }
+        }
+
+        public void RenameIfDupName(Transform t)
+        {
+            if (!m_uniqueNameSet.Contains(t.name))
+            {
+                m_uniqueNameSet.Add(t.name);
+                return;
+            }
+
+            if (t.parent != null && t.childCount == 0)
+            {
+                /// AvatarBuilder:BuildHumanAvatar で同名の Transform があるとエラーになる。
+                /// 
+                /// AvatarBuilder 'GLTF': Ambiguous Transform '32/root/torso_1/torso_2/torso_3/torso_4/torso_5/torso_6/torso_7/neck_1/neck_2/head/ENDSITE' and '32/root/torso_1/torso_2/torso_3/torso_4/torso_5/torso_6/torso_7/l_shoulder/l_up_arm/l_low_arm/l_hand/ENDSITE' found in hierarchy for human bone 'Head'. Transform name mapped to a human bone must be unique.
+                /// UnityEngine.AvatarBuilder:BuildHumanAvatar (UnityEngine.GameObject,UnityEngine.HumanDescription)
+                /// UniHumanoid.AvatarDescription:CreateAvatar (UnityEngine.Transform) 
+                /// 
+                /// 主に BVH の EndSite 由来の GameObject 名が重複することへの対策
+                ///  ex: parent-ENDSITE
+                var newName = $"{t.parent.name}-{t.name}";
+                if (!m_uniqueNameSet.Contains(newName))
+                {
+                    Debug.LogWarning($"force rename !!: {t.name} => {newName}");
+                    t.name = newName;
+                    m_uniqueNameSet.Add(newName);
+                    return;
+                }
+            }
+
+            // 連番
+            for (int i = 0; i < 100; ++i)
+            {
+                // ex: name.1
+                var newName = $"{t.name}{m_counter++}";
+                if (!m_uniqueNameSet.Contains(newName))
+                {
+                    Debug.LogWarning($"force rename: {t.name} => {newName}");
+                    t.name = newName;
+                    m_uniqueNameSet.Add(newName);
+                    return;
+                }
+            }
+
+            throw new NotImplementedException();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Assets/UniGLTF/Runtime/UniHumanoid/ForceUniqueName.cs.meta b/Assets/UniGLTF/Runtime/UniHumanoid/ForceUniqueName.cs.meta
new file mode 100644
index 000000000..e0cbe042a
--- /dev/null
+++ b/Assets/UniGLTF/Runtime/UniHumanoid/ForceUniqueName.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 51b5d93eece56c3449632c9ce0c4fc02
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/UniGLTF/Runtime/UniHumanoid/HumanoidLoader.cs b/Assets/UniGLTF/Runtime/UniHumanoid/HumanoidLoader.cs
index 0254e9943..45f0ec806 100644
--- a/Assets/UniGLTF/Runtime/UniHumanoid/HumanoidLoader.cs
+++ b/Assets/UniGLTF/Runtime/UniHumanoid/HumanoidLoader.cs
@@ -9,6 +9,8 @@ namespace UniHumanoid
     {
         public static Avatar LoadHumanoidAvatar(Transform root, IEnumerable<(Transform, HumanBodyBones)> boneMap)
         {
+            ForceUniqueName.Process(root);
+
             var description = new HumanDescription
             {
                 skeleton = root.GetComponentsInChildren<Transform>()