diff --git a/dislocker_auth.py b/dislocker_auth.py
index a4b32be..0c08fcd 100644
--- a/dislocker_auth.py
+++ b/dislocker_auth.py
@@ -334,15 +334,29 @@ def register():
         with open(onetime_config_path, "r") as r:
             onetime_config = json.load(r)
         
-        if onetime_password == onetime_config["onetime"]["pc_register"]:
+        if onetime_password == onetime_config["onetime"]["pc_register"]["password"]:
             register_result = auth.register(pc_number=pc_number, pc_uuid=pc_uuid)
-            pc_token = register_result["output_dict"]["pc_token"]
-            master_password = register_result["output_dict"]["master_password"]
-            master_password_hash = register_result["output_dict"]["master_password_hash"]
-            onetime_config["onetime"]["pc_register"] = None
-            with open(onetime_config_path, "w") as w:
-                json.dump(onetime_config, w, indent=4)
-            return jsonify({'message': 'ok', 'pc_token': pc_token, 'master_password': master_password, 'master_password_hash': master_password_hash}), 200
+            if register_result["result"] == 0:
+                pc_token = register_result["output_dict"]["pc_token"]
+                master_password = register_result["output_dict"]["master_password"]
+                master_password_hash = register_result["output_dict"]["master_password_hash"]
+                onetime_config["onetime"]["pc_register"]["current_count"] += 1
+
+                if onetime_config["onetime"]["pc_register"]["current_count"] == onetime_config["onetime"]["pc_register"]["max_count"]:
+                    onetime_config["onetime"]["pc_register"]["password"] = None
+                    with open(onetime_config_path, "w") as w:
+                        json.dump(onetime_config, w, indent=4)
+                    return jsonify({'message': 'ok', 'pc_token': pc_token, 'master_password': master_password, 'master_password_hash': master_password_hash}), 200
+                else:
+                    with open(onetime_config_path, "w") as w:
+                        json.dump(onetime_config, w, indent=4)
+                    return jsonify({'message': 'ok', 'pc_token': pc_token, 'master_password': master_password, 'master_password_hash': master_password_hash}), 200
+            elif register_result["result"] == 1:
+                if register_result["about"] == "exist":
+                    return jsonify({'message': 'exist'}), 401
+                else:
+                    return jsonify({'message': 'damedesu'}), 401
+                
         else:
             return jsonify({'message': 'damedesu'}), 401
     else:
@@ -410,22 +424,37 @@ def device_register():
                 device_register = auth.device_register(mode="keyboard", number=number, device_instance_path=device_instance_path, device_name=device_name)
                 if device_register["result"] == 0:
                     print(f"キーボード {number} 番の登録処理は成功しました.")
-                    onetime_config["onetime"]["device_register"] = None
-                    with open(onetime_config_path, "w") as w:
-                        json.dump(onetime_config, w, indent=4)
-                    return jsonify({'message': 'ok'}), 200
+                    onetime_config["onetime"]["device_register"]["current_count"] += 1
+
+                    if onetime_config["onetime"]["device_register"]["current_count"] == onetime_config["onetime"]["device_register"]["max_count"]:
+                        onetime_config["onetime"]["device_register"] = None
+                        with open(onetime_config_path, "w") as w:
+                            json.dump(onetime_config, w, indent=4)
+                        return jsonify({'message': 'ok'}), 200
+                    else:
+                        with open(onetime_config_path, "w") as w:
+                            json.dump(onetime_config, w, indent=4)
+                        return jsonify({'message': 'ok'}), 200
                 else:
                     print(f"キーボード {number} 番の登録処理は失敗しました.")
                     return jsonify({'message': 'error'}), 500
+                
             elif mode == "mouse":
                 print("マウスの登録処理を開始...")
                 device_register = auth.device_register(mode="mouse", number=number, device_instance_path=device_instance_path, device_name=device_name)
                 if device_register["result"] == 0:
                     print(f"マウス {number} 番の登録処理は成功しました.")
-                    onetime_config["onetime"]["device_register"] = None
-                    with open(onetime_config_path, "w") as w:
-                        json.dump(onetime_config, w, indent=4)
-                    return jsonify({'message': 'ok'}), 200
+                    onetime_config["onetime"]["device_register"]["current_count"] += 1
+
+                    if onetime_config["onetime"]["device_register"]["current_count"] == onetime_config["onetime"]["device_register"]["max_count"]:
+                        onetime_config["onetime"]["device_register"] = None
+                        with open(onetime_config_path, "w") as w:
+                            json.dump(onetime_config, w, indent=4)
+                        return jsonify({'message': 'ok'}), 200
+                    else:
+                        with open(onetime_config_path, "w") as w:
+                            json.dump(onetime_config, w, indent=4)
+                        return jsonify({'message': 'ok'}), 200
                 else:
                     print(f"マウス {number} 番の登録処理は失敗しました.")
                     return jsonify({'message': 'error'}), 500