diff --git a/Assets/AsmdefGraph/Editor/Scripts/AsmdefGraphEditorWindow.cs b/Assets/AsmdefGraph/Editor/Scripts/AsmdefGraphEditorWindow.cs
index 3e0673e..ed9d1c9 100644
--- a/Assets/AsmdefGraph/Editor/Scripts/AsmdefGraphEditorWindow.cs
+++ b/Assets/AsmdefGraph/Editor/Scripts/AsmdefGraphEditorWindow.cs
@@ -1,5 +1,4 @@
 using System.Collections.Generic;
-using System.IO;
 using System.Linq;
 using UnityEditor;
 using UnityEditor.Compilation;
diff --git a/Assets/AsmdefGraph/Editor/Scripts/AsmdefGraphView.cs b/Assets/AsmdefGraph/Editor/Scripts/AsmdefGraphView.cs
index d878bf5..de9391e 100644
--- a/Assets/AsmdefGraph/Editor/Scripts/AsmdefGraphView.cs
+++ b/Assets/AsmdefGraph/Editor/Scripts/AsmdefGraphView.cs
@@ -29,7 +29,7 @@ namespace AsmdefGraph.Editor {
                     if (!asmdefNodeDict.TryGetValue(dependents, out var toNode)) {
                         continue;
                     }
-                    var edge = fromNode.OutPort.ConnectTo(toNode.InPort);
+                    var edge = fromNode.RightPort.ConnectTo(toNode.LeftPort);
                     contentContainer.Add(edge);// これが無いと線が表示されない
                 }
             }
diff --git a/Assets/AsmdefGraph/Editor/Scripts/AsmdefNode.cs b/Assets/AsmdefGraph/Editor/Scripts/AsmdefNode.cs
index dabe3e8..f07b2b4 100644
--- a/Assets/AsmdefGraph/Editor/Scripts/AsmdefNode.cs
+++ b/Assets/AsmdefGraph/Editor/Scripts/AsmdefNode.cs
@@ -2,19 +2,19 @@
 
 namespace AsmdefGraph.Editor {
     public class AsmdefNode : Node {
-        public readonly Port InPort;
-        public readonly Port OutPort;
+        public readonly Port LeftPort;
+        public readonly Port RightPort;
 
         public AsmdefNode(string nodeName) {
             title = nodeName;
 
-            InPort = Port.Create<Edge>(Orientation.Horizontal, Direction.Input, Port.Capacity.Multi, typeof(Port));
-            InPort.portName = "In";
-            inputContainer.Add(InPort);
-            
-            OutPort = Port.Create<Edge>(Orientation.Horizontal, Direction.Output, Port.Capacity.Multi, typeof(Port));
-            OutPort.portName = "Out";
-            outputContainer.Add(OutPort);
+            LeftPort = Port.Create<Edge>(Orientation.Horizontal, Direction.Output, Port.Capacity.Multi, typeof(Port));
+            LeftPort.portName = "Ref By";
+            outputContainer.Add(LeftPort); // as right side
+
+            RightPort = Port.Create<Edge>(Orientation.Horizontal, Direction.Input, Port.Capacity.Multi, typeof(Port));
+            RightPort.portName = "Ref To";
+            inputContainer.Add(RightPort); // as left side
         }
     }
 }