diff --git a/src/MessageClass.ts b/src/MessageClass.ts
index 6bbf80e..db22d2c 100644
--- a/src/MessageClass.ts
+++ b/src/MessageClass.ts
@@ -44,7 +44,10 @@ export default class MessageClass {
 				return await this.User(event);
 			}
 
-			case "group":
+			case "group": {
+				return await this.Group(event);
+			}
+
 			default:
 				break;
 		}
diff --git a/src/OpenAI.ts b/src/OpenAI.ts
index faad549..75a57ee 100644
--- a/src/OpenAI.ts
+++ b/src/OpenAI.ts
@@ -15,7 +15,7 @@ export default class OpenAI {
 		// tslint:disable-next-line:typedef
 		const response = await openai.createCompletion({
 			model: "text-davinci-003",
-			prompt: "人類：" + msg,
+			prompt: "你：" + msg,
 			temperature: 0.7,
 			max_tokens: 256,
 			top_p: 1,