diff --git a/Assets/VRM10/Editor/Vrm10InstanceEditor.cs b/Assets/VRM10/Editor/Vrm10InstanceEditor.cs
index 906398682..233efce13 100644
--- a/Assets/VRM10/Editor/Vrm10InstanceEditor.cs
+++ b/Assets/VRM10/Editor/Vrm10InstanceEditor.cs
@@ -24,6 +24,8 @@ namespace UniVRM10
             LookAt,
             SpringBone,
         }
+        static Tab s_selected = default;
+        static bool s_foldRuntimeLookAt = false;
 
         Vrm10Instance m_instance;
 
@@ -226,7 +228,7 @@ namespace UniVRM10
                 root.Add(s);
             }
 
-            var tabs = new EnumField("select UI", default(Tab));
+            var tabs = new EnumField("select UI", s_selected);
             root.Add(tabs);
 
             var body = new VisualElement();
@@ -239,7 +241,7 @@ namespace UniVRM10
             foreach (var (tab, content) in contents)
             {
                 // content.visible = tab == Tab.VrmInstance;
-                content.style.display = tab == Tab.VrmInstance
+                content.style.display = tab == s_selected
                     ? DisplayStyle.Flex
                     : DisplayStyle.None
                     ;
@@ -249,11 +251,11 @@ namespace UniVRM10
 
             tabs.RegisterValueChangedCallback(e =>
             {
-                var selected = (Tab)e.newValue;
+                s_selected = (Tab)e.newValue;
                 foreach (var (tab, content) in contents)
                 {
                     // content.visible = tab == selected;
-                    content.style.display = tab == selected
+                    content.style.display = tab == s_selected
                         ? DisplayStyle.Flex
                         : DisplayStyle.None
                         ;
@@ -277,11 +279,80 @@ namespace UniVRM10
 
         void GUILookAt()
         {
+            if (!target)
+            {
+                return;
+            }
             serializedObject.Update();
             EditorGUILayout.PropertyField(m_drawLookatGizmo);
             EditorGUILayout.PropertyField(m_lookatTarget);
             EditorGUILayout.PropertyField(m_lookatTargetType);
             serializedObject.ApplyModifiedProperties();
+
+            // lookat info
+            if (Application.isPlaying)
+            {
+                EditorGUILayout.Space();
+                s_foldRuntimeLookAt = EditorGUILayout.Foldout(s_foldRuntimeLookAt, "RuntimeInfo");
+                if (s_foldRuntimeLookAt)
+                {
+                    var enabled = GUI.enabled;
+                    GUI.enabled = false;
+                    EditorGUILayout.Slider("yaw(-180 ~ +180)", m_instance.Runtime.LookAt.Yaw, -180, 180);
+                    EditorGUILayout.Slider("pitch(-90 ~ +90)", m_instance.Runtime.LookAt.Pitch, -90, 90);
+                    if (m_instance.Runtime.LookAt.EyeDirectionApplicable is LookAtEyeDirectionApplicableToBone)
+                    {
+                        EditorGUILayout.LabelField("BoneTYpe");
+                    }
+                    else if (m_instance.Runtime.LookAt.EyeDirectionApplicable is LookAtEyeDirectionApplicableToExpression)
+                    {
+                        EditorGUILayout.LabelField("ExpressionType");
+                        var w = m_instance.Runtime.Expression.ActualWeights;
+                        // left
+                        if (w.TryGetValue(ExpressionKey.LookLeft, out var left))
+                        {
+                            EditorGUILayout.Slider("left", left, 0, 1);
+                        }
+                        else
+                        {
+                            EditorGUILayout.TextField("left");
+                        }
+                        // right
+                        if (w.TryGetValue(ExpressionKey.LookRight, out var right))
+                        {
+                            EditorGUILayout.Slider("right", right, 0, 1);
+                        }
+                        else
+                        {
+                            EditorGUILayout.TextField("right");
+                        }
+                        // up
+                        if (w.TryGetValue(ExpressionKey.LookUp, out var up))
+                        {
+                            EditorGUILayout.Slider("up", up, 0, 1);
+                        }
+                        else
+                        {
+                            EditorGUILayout.TextField("up");
+                        }
+                        // down
+                        if (w.TryGetValue(ExpressionKey.LookDown, out var down))
+                        {
+                            EditorGUILayout.Slider("down", down, 0, 1);
+                        }
+                        else
+                        {
+                            EditorGUILayout.TextField("down");
+                        }
+                    }
+                    else
+                    {
+                        EditorGUILayout.LabelField($"UnknownTYpe: {m_instance.Runtime.LookAt.EyeDirectionApplicable}");
+                    }
+                    GUI.enabled = enabled;
+                    Repaint();
+                }
+            }
         }
 
         VisualElement GUISpringBone()