diff --git a/Assets/New Character Data.asset b/Assets/New Character Data.asset
new file mode 100644
index 0000000..89d52ce
--- /dev/null
+++ b/Assets/New Character Data.asset	
@@ -0,0 +1,17 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 8c9b81d87e51f0f4197c65dca5fe6aec, type: 3}
+  m_Name: New Character Data
+  m_EditorClassIdentifier: 
+  CharacterName: 
+  DialogueColor: {r: 0, g: 0, b: 0, a: 0}
+  Expressions: []
diff --git a/Assets/New Character Data.asset.meta b/Assets/New Character Data.asset.meta
new file mode 100644
index 0000000..afe3f5a
--- /dev/null
+++ b/Assets/New Character Data.asset.meta	
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: fb83984e2589f95409d92539539f966b
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 11400000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Packages/com.studio23.ss2.dialoguesystem/Editor/Data/LineSpeakerDataPropertyDrawer.cs b/Assets/Packages/com.studio23.ss2.dialoguesystem/Editor/Data/LineSpeakerDataPropertyDrawer.cs
index 05f5b91..bec2d14 100644
--- a/Assets/Packages/com.studio23.ss2.dialoguesystem/Editor/Data/LineSpeakerDataPropertyDrawer.cs
+++ b/Assets/Packages/com.studio23.ss2.dialoguesystem/Editor/Data/LineSpeakerDataPropertyDrawer.cs
@@ -36,7 +36,9 @@ public override void OnGUI(Rect position, SerializedProperty property, GUIConten
             if (lineSpeakerData.Character != null)
             {
                 position.y += EditorGUIUtility.singleLineHeight;
-                var expressions = lineSpeakerData.Character.Expressions.Select(ced => ced.ExpressionName).ToArray();
+                var expressions = lineSpeakerData.Character.Expressions
+                    .Where(ced => ced != null)
+                    .Select(ced => ced.ExpressionName).ToArray();
                 // EditorGUI.LabelField(position," :" + lineSpeakerData);
                 if (expressions.Length == 0)
                 {
diff --git a/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Characters/Narupo.asset b/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Characters/Narupo.asset
new file mode 100644
index 0000000..a4b8102
--- /dev/null
+++ b/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Characters/Narupo.asset
@@ -0,0 +1,32 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &-6522073147610097109
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 2ea1a97ac8dd4be5aa1587a59f11d10d, type: 3}
+  m_Name: Victor_U DARE SHOOT ME
+  m_EditorClassIdentifier: 
+  Character: {fileID: 11400000}
+  ExpressionName: U DARE SHOOT ME
+  Image: {fileID: 0}
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 8c9b81d87e51f0f4197c65dca5fe6aec, type: 3}
+  m_Name: Narupo
+  m_EditorClassIdentifier: 
+  CharacterName: Victor
+  DialogueColor: {r: 0, g: 0.4576635, b: 0.49056602, a: 1}
+  Expressions: []
diff --git a/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Characters/Narupo.asset.meta b/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Characters/Narupo.asset.meta
new file mode 100644
index 0000000..e5cf667
--- /dev/null
+++ b/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Characters/Narupo.asset.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: f206f19a5eeee3b4282901b5353fd9ea
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 11400000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Graphs/Dialogue Graph 1.asset b/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Graphs/Dialogue Graph 1.asset
index 6566eeb..bd68ae4 100644
--- a/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Graphs/Dialogue Graph 1.asset	
+++ b/Assets/Packages/com.studio23.ss2.dialoguesystem/Samples/DialogueChoiceDemo/Resources/DialogueSystem/Graphs/Dialogue Graph 1.asset	
@@ -824,7 +824,7 @@ MonoBehaviour:
     m_WaitForCompletion: 0
     m_LocalVariables: []
   SpeakerData:
-    Character: {fileID: 0}
+    Character: {fileID: 11400000, guid: 0480fe1505a2908449d82e07dffcbca0, type: 2}
     Expression: {fileID: 0}
   FMODEvent: 
   Exit: {fileID: 0}
@@ -897,7 +897,7 @@ MonoBehaviour:
     m_WaitForCompletion: 0
     m_LocalVariables: []
   SpeakerData:
-    Character: {fileID: 0}
+    Character: {fileID: 11400000, guid: f206f19a5eeee3b4282901b5353fd9ea, type: 2}
     Expression: {fileID: 0}
   FMODEvent: 
   Exit: {fileID: 0}