diff --git a/src/ntqqapi/types/user.ts b/src/ntqqapi/types/user.ts
index d33976b..efd2df6 100644
--- a/src/ntqqapi/types/user.ts
+++ b/src/ntqqapi/types/user.ts
@@ -1,7 +1,8 @@
 export enum Sex {
-  male = 0,
-  female = 2,
-  unknown = 255,
+  Unknown = 0,
+  Male = 1,
+  Female = 2,
+  Hidden = 255
 }
 
 export interface QQLevel {
@@ -101,7 +102,7 @@ export interface BaseInfo {
   birthday_month: number
   birthday_day: number
   age: number
-  sex: number
+  sex: Sex
   eMail: string
   phoneNum: string
   categoryId: number
diff --git a/src/onebot11/entities.ts b/src/onebot11/entities.ts
index 1a84606..24c9a2a 100644
--- a/src/onebot11/entities.ts
+++ b/src/onebot11/entities.ts
@@ -665,9 +665,10 @@ export namespace OB11Entities {
 
   export function sex(sex: Sex): OB11UserSex {
     const sexMap = {
-      [Sex.male]: OB11UserSex.Male,
-      [Sex.female]: OB11UserSex.Female,
-      [Sex.unknown]: OB11UserSex.Unknown,
+      [Sex.Unknown]: OB11UserSex.Unknown,
+      [Sex.Male]: OB11UserSex.Male,
+      [Sex.Female]: OB11UserSex.Female,
+      [Sex.Hidden]: OB11UserSex.Unknown
     }
     return sexMap[sex] ?? OB11UserSex.Unknown
   }
@@ -697,19 +698,6 @@ export namespace OB11Entities {
     }
   }
 
-  export function stranger(user: User): OB11User {
-    return {
-      ...user,
-      user_id: parseInt(user.uin),
-      nickname: user.nick,
-      sex: sex(user.sex!),
-      age: 0,
-      qid: user.qid,
-      login_days: 0,
-      level: (user.qqLevel && calcQQLevel(user.qqLevel)) || 0,
-    }
-  }
-
   export function group(group: Group): OB11Group {
     return {
       group_id: parseInt(group.groupCode),