diff --git a/dictation_client/src/components/auth/constants.ts b/dictation_client/src/components/auth/constants.ts
index 649d569..34f51b0 100644
--- a/dictation_client/src/components/auth/constants.ts
+++ b/dictation_client/src/components/auth/constants.ts
@@ -39,12 +39,6 @@ export const UNAUTHORIZED_TO_CONTINUE_ERROR_CODES = [
   "E10501",
 ];
 
-/**
- * ローカルストレージに残すキー類
- * @const {string[]}
- */
-export const KEYS_TO_PRESERVE = ["accessToken", "refreshToken", "displayInfo"];
-
 /**
  * アクセストークンを更新する基準の秒数
  * @const {number}
diff --git a/dictation_client/src/features/login/operations.ts b/dictation_client/src/features/login/operations.ts
index f320ac2..07185ba 100644
--- a/dictation_client/src/features/login/operations.ts
+++ b/dictation_client/src/features/login/operations.ts
@@ -1,15 +1,17 @@
 import { createAsyncThunk } from "@reduxjs/toolkit";
 import type { RootState } from "app/store";
-import { setToken } from "features/auth/authSlice";
-import { KEYS_TO_PRESERVE } from "components/auth/constants";
-import { AuthApi, UsersApi, GetMyUserResponse } from "../../api/api";
+import { getAccessToken, setToken } from "features/auth";
+import {
+  AuthApi,
+  UsersApi,
+  GetMyUserResponse,
+  TokenResponse,
+} from "../../api/api";
 import { Configuration } from "../../api/configuration";
 import { ErrorObject, createErrorObject } from "../../common/errors";
 
 export const loginAsync = createAsyncThunk<
-  {
-    //
-  },
+  TokenResponse,
   {
     idToken: string;
   },
@@ -33,7 +35,6 @@ export const loginAsync = createAsyncThunk<
       idToken,
       type: "web",
     });
-
     // アクセストークン・リフレッシュトークンをlocalStorageに保存
     thunkApi.dispatch(
       setToken({
@@ -41,19 +42,8 @@ export const loginAsync = createAsyncThunk<
         refreshToken: data.refreshToken,
       })
     );
-    // ローカルストレージに残すキー
-    const keysToPreserve = KEYS_TO_PRESERVE;
 
-    // すべてのローカルストレージキーを取得
-    const allKeys = Object.keys(localStorage);
-
-    // 特定のキーを除外して削除
-    allKeys.forEach((key) => {
-      if (!keysToPreserve.includes(key)) {
-        localStorage.removeItem(key);
-      }
-    });
-    return {};
+    return data;
   } catch (e) {
     // e ⇒ errorObjectに変換"
     const error = createErrorObject(e);
@@ -76,7 +66,8 @@ export const getUserInfoAsync = createAsyncThunk<
   // apiのConfigurationを取得する
   const { getState } = thunkApi;
   const state = getState() as RootState;
-  const { configuration, accessToken } = state.auth;
+  const { configuration } = state.auth;
+  const accessToken = getAccessToken(state.auth);
   const config = new Configuration(configuration);
   const usersApi = new UsersApi(config);
 
diff --git a/dictation_server/src/common/cache/constants.ts b/dictation_server/src/common/cache/constants.ts
index 9f588f6..b79dd78 100644
--- a/dictation_server/src/common/cache/constants.ts
+++ b/dictation_server/src/common/cache/constants.ts
@@ -1,3 +1 @@
 export const ADB2C_PREFIX = 'adb2c-external-id:';
-
-export const IDTOKEN_PREFIX = 'id-token:';
diff --git a/dictation_server/src/common/cache/index.ts b/dictation_server/src/common/cache/index.ts
index 4985492..3355a54 100644
--- a/dictation_server/src/common/cache/index.ts
+++ b/dictation_server/src/common/cache/index.ts
@@ -1,4 +1,4 @@
-import { ADB2C_PREFIX, IDTOKEN_PREFIX } from './constants';
+import { ADB2C_PREFIX } from './constants';
 
 /**
  * ADB2Cのユーザー格納用のキーを生成する
@@ -17,12 +17,3 @@ export const makeADB2CKey = (externalId: string): string => {
 export const restoreAdB2cID = (key: string): string => {
   return key.replace(ADB2C_PREFIX, '');
 };
-
-/**
- * ADB2CのIDトークン格納用のキーを生成する
- * @param idToken IDトークン
- * @returns キャッシュのキー
- */
-export const makeIDTokenKey = (idToken: string): string => {
-  return `${IDTOKEN_PREFIX}${idToken}`;
-};
diff --git a/dictation_server/src/common/test/modules.ts b/dictation_server/src/common/test/modules.ts
index 61c0396..9c3d578 100644
--- a/dictation_server/src/common/test/modules.ts
+++ b/dictation_server/src/common/test/modules.ts
@@ -38,8 +38,6 @@ import { TermsService } from '../../features/terms/terms.service';
 import { TermsRepositoryModule } from '../../repositories/terms/terms.repository.module';
 import { TermsModule } from '../../features/terms/terms.module';
 import { CacheModule } from '@nestjs/common';
-import { RedisModule } from '../../gateways/redis/redis.module';
-import { RedisService } from '../../gateways/redis/redis.service';
 
 export const makeTestingModule = async (
   datasource: DataSource,
@@ -79,7 +77,6 @@ export const makeTestingModule = async (
         SortCriteriaRepositoryModule,
         WorktypesRepositoryModule,
         TermsRepositoryModule,
-        RedisModule,
         CacheModule.register({ isGlobal: true }),
       ],
       providers: [
@@ -93,7 +90,6 @@ export const makeTestingModule = async (
         TemplatesService,
         WorkflowsService,
         TermsService,
-        RedisService,
       ],
     })
       .useMocker(async (token) => {
diff --git a/dictation_server/src/features/auth/auth.controller.ts b/dictation_server/src/features/auth/auth.controller.ts
index 89e4de6..a07b666 100644
--- a/dictation_server/src/features/auth/auth.controller.ts
+++ b/dictation_server/src/features/auth/auth.controller.ts
@@ -33,15 +33,14 @@ import { RoleGuard } from '../../common/guards/role/roleguards';
 import { ADMIN_ROLES, TIERS } from '../../constants';
 import jwt from 'jsonwebtoken';
 import { AccessToken, RefreshToken } from '../../common/token';
-import { makeIDTokenKey } from '../../common/cache';
-import { RedisService } from '../../gateways/redis/redis.service';
 
 @ApiTags('auth')
 @Controller('auth')
 export class AuthController {
   constructor(
+    // TODO「タスク 1828: IDトークンを一度しか使えないようにする」で使用する予定
+    // private readonly redisService: RedisService,
     private readonly authService: AuthService,
-    private readonly redisService: RedisService,
   ) {}
 
   @Post('token')
@@ -77,18 +76,6 @@ export class AuthController {
     }
 
     const context = makeContext(uuidv4());
-    const key = makeIDTokenKey(body.idToken);
-    const isTokenExists = await this.redisService.get<boolean>(key);
-    if (!isTokenExists) {
-      // IDトークンがキャッシュに存在しない場合(idTokenの有効期限をADB2Cの有効期限と合わせる(300秒))
-      await this.redisService.set(key, true, 300);
-    } else {
-      // IDトークンがキャッシュに存在する場合エラー
-      throw new HttpException(
-        makeErrorResponse('E000106'),
-        HttpStatus.UNAUTHORIZED,
-      );
-    }
 
     // 同意済み利用規約バージョンが最新かチェック
     const isAcceptedLatestVersion =
diff --git a/dictation_server/src/features/auth/auth.module.ts b/dictation_server/src/features/auth/auth.module.ts
index d86bf30..2e3dc4c 100644
--- a/dictation_server/src/features/auth/auth.module.ts
+++ b/dictation_server/src/features/auth/auth.module.ts
@@ -4,10 +4,15 @@ import { AdB2cModule } from '../../gateways/adb2c/adb2c.module';
 import { UsersRepositoryModule } from '../../repositories/users/users.repository.module';
 import { AuthController } from './auth.controller';
 import { AuthService } from './auth.service';
-import { RedisService } from '../../gateways/redis/redis.service';
+import { TermsRepositoryModule } from '../../repositories/terms/terms.repository.module';
 @Module({
-  imports: [ConfigModule, AdB2cModule, UsersRepositoryModule],
+  imports: [
+    ConfigModule,
+    AdB2cModule,
+    UsersRepositoryModule,
+    TermsRepositoryModule,
+  ],
   controllers: [AuthController],
-  providers: [AuthService, RedisService],
+  providers: [AuthService],
 })
 export class AuthModule {}
diff --git a/dictation_server/src/features/auth/auth.service.spec.ts b/dictation_server/src/features/auth/auth.service.spec.ts
index abeaf61..1be5e40 100644
--- a/dictation_server/src/features/auth/auth.service.spec.ts
+++ b/dictation_server/src/features/auth/auth.service.spec.ts
@@ -723,6 +723,7 @@ describe('updateDelegationAccessToken', () => {
     }
   });
 });
+
 const idTokenPayload = {
   exp: 9000000000,
   nbf: 1000000000,
diff --git a/dictation_server/src/gateways/adb2c/adb2c.service.ts b/dictation_server/src/gateways/adb2c/adb2c.service.ts
index 947148a..69bd890 100644
--- a/dictation_server/src/gateways/adb2c/adb2c.service.ts
+++ b/dictation_server/src/gateways/adb2c/adb2c.service.ts
@@ -4,7 +4,7 @@ import { TokenCredentialAuthenticationProvider } from '@microsoft/microsoft-grap
 import { CACHE_MANAGER, Inject, Injectable, Logger } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import axios from 'axios';
-import { B2cMetadata, IDToken, JwkSignKey } from '../../common/token';
+import { B2cMetadata, JwkSignKey } from '../../common/token';
 import { AdB2cResponse, AdB2cUser } from './types/types';
 import { isPromiseRejectedResult } from './utils/utils';
 import { Context } from '../../common/log';