diff --git a/src/app/modules/polyglot/member/services/member.service.ts b/src/app/modules/polyglot/member/services/member.service.ts
index 5076392..62cd674 100644
--- a/src/app/modules/polyglot/member/services/member.service.ts
+++ b/src/app/modules/polyglot/member/services/member.service.ts
@@ -22,7 +22,7 @@ import {
   SUBJECT_UPDATE_MEMBER,
   SUBJECT_CREATE_MEMBER,
   SUBJECT_UPDATE_MEMBER_FOR_PASSWORD,
-} from 'app/modules/proto/c2se/backend/member_pb';
+} from 'app/modules/proto/c2se/frontend/member_pb';
 import { Pagination } from 'app/modules/proto/protobuf/pagination_pb';
 
 @Injectable({
diff --git a/src/app/modules/polyglot/member_referrer/services/member_referrer.service.ts b/src/app/modules/polyglot/member_referrer/services/member_referrer.service.ts
index 057f21f..32babb2 100644
--- a/src/app/modules/polyglot/member_referrer/services/member_referrer.service.ts
+++ b/src/app/modules/polyglot/member_referrer/services/member_referrer.service.ts
@@ -5,27 +5,14 @@ import * as nats from 'nats.ws';
 import { Error } from 'app/modules/proto/protobuf/rpc_pb';
 
 import {
-  ListMemberReferrersRequest,
-  ListMemberReferrersResponse,
-  CreateMemberReferrerRequest,
-  CreateMemberReferrerResponse,
   UpdateMemberReferrerRequest,
   UpdateMemberReferrerResponse,
   DeleteMemberReferrerRequest,
   DeleteMemberReferrerResponse,
-  GetMemberReferrerResponse,
-  GetMemberReferrerRequest,
   GetMemberReferrerByCodeResponse,
   GetMemberReferrerByCodeRequest,
 } from 'app/modules/proto/c2se/member_referrer_pb';
-import {
-  SUBJECT_LIST_MEMBER_REFERRERS,
-  SUBJECT_CREATE_MEMBER_REFERRER,
-  SUBJECT_UPDATE_MEMBER_REFERRER,
-  SUBJECT_DELETE_MEMBER_REFERRER,
-  SUBJECT_GET_MEMBER_REFERRER,
-  SUBJECT_GET_MEMBER_REFERRER_BY_CODE,
-} from 'app/modules/proto/c2se/backend/member_referrer_pb';
+import { SUBJECT_GET_MEMBER_REFERRER_BY_CODE } from 'app/modules/proto/c2se/frontend/member_referrer_pb';
 
 @Injectable({
   providedIn: 'root',
@@ -44,78 +31,6 @@ export class MemberReferrerService {
   // @ Public methods
   // -----------------------------------------------------------------------------------------------------
 
-  createMemberReferrer(
-    memberId: string
-  ): Promise<CreateMemberReferrerResponse.Result> {
-    return new Promise<CreateMemberReferrerResponse.Result>(
-      (resolve, reject) => {
-        let req = new CreateMemberReferrerRequest();
-        req.setMemberId(memberId);
-
-        this.__natsService
-          .request<CreateMemberReferrerResponse.Result>(
-            SUBJECT_CREATE_MEMBER_REFERRER,
-            req.serializeBinary(),
-            CreateMemberReferrerResponse.deserializeBinary
-          )
-          .then((result) => {
-            console.log('success', result, result.getMemberReferrer());
-            return resolve(result);
-          })
-          .catch((e: Error) => {
-            console.log('failed', e);
-            return reject(e);
-          });
-      }
-    );
-  }
-
-  listMemberReferrers(): Promise<ListMemberReferrersResponse.Result> {
-    return new Promise<ListMemberReferrersResponse.Result>(
-      (resolve, reject) => {
-        let req = new ListMemberReferrersRequest();
-
-        this.__natsService
-          .request<ListMemberReferrersResponse.Result>(
-            SUBJECT_LIST_MEMBER_REFERRERS,
-            req.serializeBinary(),
-            ListMemberReferrersResponse.deserializeBinary
-          )
-          .then((result) => {
-            console.log('success', result, result.getMemberReferrersList());
-            return resolve(result);
-          })
-          .catch((e: Error) => {
-            console.log('failed', e);
-            reject(e);
-          });
-      }
-    );
-  }
-
-  getMemberReferrer(id: string): Promise<GetMemberReferrerResponse.Result> {
-    return new Promise<GetMemberReferrerResponse.Result>((resolve, reject) => {
-      let req = new GetMemberReferrerRequest();
-
-      req.setId(id);
-
-      this.__natsService
-        .request<GetMemberReferrerResponse.Result>(
-          SUBJECT_GET_MEMBER_REFERRER,
-          req.serializeBinary(),
-          GetMemberReferrerResponse.deserializeBinary
-        )
-        .then((result) => {
-          console.log('success', result, result.getMemberReferrer());
-          return resolve(result);
-        })
-        .catch((e: Error) => {
-          console.log('failed', e);
-          return reject(e);
-        });
-    });
-  }
-
   getMemberReferrerByCode(
     code: string
   ): Promise<GetMemberReferrerByCodeResponse.Result> {
@@ -142,54 +57,4 @@ export class MemberReferrerService {
       }
     );
   }
-
-  updateMemberReferrer(): Promise<UpdateMemberReferrerResponse.Result> {
-    return new Promise<UpdateMemberReferrerResponse.Result>(
-      (resolve, reject) => {
-        let req = new UpdateMemberReferrerRequest();
-
-        this.__natsService
-          .request<UpdateMemberReferrerResponse.Result>(
-            SUBJECT_UPDATE_MEMBER_REFERRER,
-            req.serializeBinary(),
-            UpdateMemberReferrerResponse.deserializeBinary
-          )
-          .then((result) => {
-            console.log('success', result, result.getMemberReferrer());
-            return resolve(result);
-          })
-          .catch((e: Error) => {
-            console.log('failed', e);
-            return reject(e);
-          });
-      }
-    );
-  }
-
-  deleteMemberReferrer(
-    id: string
-  ): Promise<DeleteMemberReferrerResponse.Result> {
-    return new Promise<DeleteMemberReferrerResponse.Result>(
-      (resolve, reject) => {
-        let req = new DeleteMemberReferrerRequest();
-
-        req.setId(id);
-
-        this.__natsService
-          .request<DeleteMemberReferrerResponse.Result>(
-            SUBJECT_DELETE_MEMBER_REFERRER,
-            req.serializeBinary(),
-            DeleteMemberReferrerResponse.deserializeBinary
-          )
-          .then((result) => {
-            console.log('success', result);
-            return resolve(result);
-          })
-          .catch((e: Error) => {
-            console.log('failed', e);
-            return reject(e);
-          });
-      }
-    );
-  }
 }