diff --git a/app/src/api/cursusUser/cursusUser.service.ts b/app/src/api/cursusUser/cursusUser.service.ts
index d6f7b94d..872c9362 100644
--- a/app/src/api/cursusUser/cursusUser.service.ts
+++ b/app/src/api/cursusUser/cursusUser.service.ts
@@ -78,15 +78,17 @@ export class CursusUserService {
   }
 
   async getuserIdByLogin(login: string): Promise<number | null> {
-    const userId = await this.findOneAndLean({
-      filter: { 'user.login': login },
-    }).then((user) => user?.user.id);
+    const cursusUser: { user: Pick<cursus_user['user'], 'id'> } | null =
+      await this.findOneAndLean({
+        filter: { 'user.login': login },
+        select: { 'user.id': 1 },
+      });
 
-    if (!userId) {
+    if (!cursusUser) {
       return null;
     }
 
-    return userId;
+    return cursusUser.user.id;
   }
 
   async findAllAndLean(
diff --git a/app/src/follow/follow.resolver.ts b/app/src/follow/follow.resolver.ts
index bdca5d19..308e962d 100644
--- a/app/src/follow/follow.resolver.ts
+++ b/app/src/follow/follow.resolver.ts
@@ -63,44 +63,14 @@ export class FollowResolver {
   }
 
   @UseGuards(StatAuthGuard)
-  @Query((_returns) => Boolean, { nullable: true })
+  @Query((_returns) => Boolean)
   async getIsFollowing(
     @MyUserId() userId: number,
-    @Args('target') target: string,
-  ): Promise<boolean | undefined> {
-    const targetId = await this.followService.userIdByLogin(target);
-
+    @Args('targetId') targetId: number,
+  ): Promise<boolean> {
     return await this.followService.isFollowing(userId, targetId);
   }
 
-  @UseGuards(StatAuthGuard)
-  @Query((_returns) => FollowListWithCount)
-  async getFollowerList(
-    @MyUserId() userId: number,
-    @Args('target') target: string,
-    @Args('limit', { defaultValue: 3 }) limit: number,
-    @Args('sortOrder', {
-      type: () => FollowSortOrder,
-      defaultValue: FollowSortOrder.FOLLOW_AT_DESC,
-    })
-    sortOrder: FollowSortOrder,
-  ): Promise<FollowListWithCount> {
-    const targetId = await this.followService.userIdByLogin(target);
-    const count = await this.followService.followerCount(targetId);
-
-    const followerList = await this.followService.followerList(
-      userId,
-      target,
-      limit,
-      sortOrder,
-    );
-
-    return {
-      count,
-      followList: followerList,
-    };
-  }
-
   @UseGuards(StatAuthGuard)
   @Query((_returns) => FollowListPaginated)
   async getFollowerPaginated(
@@ -110,34 +80,6 @@ export class FollowResolver {
     return await this.followService.followerPaginated(userId, args);
   }
 
-  @UseGuards(StatAuthGuard)
-  @Query((_returns) => FollowListWithCount)
-  async getFollowingList(
-    @MyUserId() userId: number,
-    @Args('target') target: string,
-    @Args('limit', { defaultValue: 3 }) limit: number,
-    @Args('sortOrder', {
-      type: () => FollowSortOrder,
-      defaultValue: FollowSortOrder.FOLLOW_AT_DESC,
-    })
-    sortOrder: FollowSortOrder,
-  ): Promise<FollowListWithCount> {
-    const targetId = await this.followService.userIdByLogin(target);
-    const count = await this.followService.followingCount(targetId);
-
-    const followingList = await this.followService.followingList(
-      userId,
-      target,
-      limit,
-      sortOrder,
-    );
-
-    return {
-      count,
-      followList: followingList,
-    };
-  }
-
   @UseGuards(StatAuthGuard)
   @Query((_returns) => FollowListPaginated)
   async getFollowingPaginated(
diff --git a/app/src/follow/follow.service.ts b/app/src/follow/follow.service.ts
index 57f93b9e..39af7be6 100644
--- a/app/src/follow/follow.service.ts
+++ b/app/src/follow/follow.service.ts
@@ -62,12 +62,15 @@ export class FollowService {
   ): Promise<typeof FollowResult> {
     const following = await this.cursusUserService.getuserIdByLogin(target);
 
-    const alreadyFollow = await this.followModel.find({
-      userId: userId,
-      followId: following,
-    });
+    const alreadyFollow = await this.followModel.findOne(
+      {
+        userId: userId,
+        followId: following,
+      },
+      { _id: 1 },
+    );
 
-    if (!following || userId === following || alreadyFollow.length) {
+    if (!following || userId === following || alreadyFollow) {
       return { message: 'fail' };
     }
 
@@ -112,7 +115,6 @@ export class FollowService {
     return { message: 'fail' };
   }
 
-  // getFollowerList("yeju") -> yeju를 팔로우 하는 사람들
   async followerList(
     userId: number,
     target: string,
@@ -313,20 +315,11 @@ export class FollowService {
     return await this.followModel.countDocuments({ userId, filter });
   }
 
-  async isFollowing(
-    userId: number,
-    targetId: number,
-  ): Promise<boolean | undefined> {
-    let isFollowing: boolean | undefined = undefined;
-
-    if (userId !== targetId) {
-      isFollowing = !!(await this.followModel.findOne({
-        userId,
-        targetId,
-      }));
-    }
-
-    return isFollowing;
+  async isFollowing(userId: number, targetId: number): Promise<boolean> {
+    return !!(await this.followModel.findOne({
+      userId,
+      targetId,
+    }));
   }
 
   async checkFollowing(
diff --git a/app/src/page/evalLog/evalLog.service.ts b/app/src/page/evalLog/evalLog.service.ts
index 38bdf8c5..4b1477f5 100644
--- a/app/src/page/evalLog/evalLog.service.ts
+++ b/app/src/page/evalLog/evalLog.service.ts
@@ -1,4 +1,4 @@
-import { Injectable } from '@nestjs/common';
+import { BadRequestException, Injectable } from '@nestjs/common';
 import { FilterQuery } from 'mongoose';
 import { scale_team } from 'src/api/scaleTeam/db/scaleTeam.database.schema';
 import {
@@ -143,7 +143,20 @@ const cursorExtractor: CursorExtractor<EvalLog> = (doc) =>
   doc.id.toString() + '_' + doc.header.beginAt.toISOString();
 
 const fieldExtractor: FieldExtractor<EvalLogCursorField> = (cursor: string) => {
-  const [idString, dateString] = cursor.split('_');
+  const cursorDataList = cursor.split('_');
+  if (cursorDataList.length !== 2) {
+    throw new BadRequestException('Invalid Cursor');
+  }
+
+  const userId = parseInt(cursorDataList[0]);
+  if (isNaN(userId)) {
+    throw new BadRequestException('Invalid Cursor');
+  }
+
+  const date = new Date(cursorDataList[1]).getTime();
+  if (isNaN(date)) {
+    throw new BadRequestException('Invalid Cursor');
+  }
 
-  return [parseInt(idString), new Date(dateString)];
+  return [userId, new Date(date)];
 };
diff --git a/app/src/schema.gql b/app/src/schema.gql
index a2f6f3b5..1a24bd4e 100644
--- a/app/src/schema.gql
+++ b/app/src/schema.gql
@@ -80,11 +80,6 @@ type FollowListPaginated {
   pageInfo: CursorPageInfo!
 }
 
-type FollowListWithCount {
-  followList: [FollowList!]!
-  count: Int!
-}
-
 type LinkableAccount {
   platform: String!
   id: String!
@@ -641,10 +636,8 @@ type Query {
   getEvalLogs(after: String, first: Int! = 20, corrector: String, corrected: String, projectName: String, outstandingOnly: Boolean! = false, imperfectOnly: Boolean! = false, sortOrder: EvalLogSortOrder! = BEGIN_AT_DESC): EvalLogsPaginated!
   getSetting: Setting!
   getExpTable: [ExpTable!]!
-  getIsFollowing(target: String!): Boolean
-  getFollowerList(target: String!, limit: Int! = 3, sortOrder: FollowSortOrder! = FOLLOW_AT_DESC): FollowListWithCount!
+  getIsFollowing(targetId: Int!): Boolean!
   getFollowerPaginated(after: String, first: Int! = 20, target: String!, sortOrder: FollowSortOrder! = FOLLOW_AT_DESC): FollowListPaginated!
-  getFollowingList(target: String!, limit: Int! = 3, sortOrder: FollowSortOrder! = FOLLOW_AT_DESC): FollowListWithCount!
   getFollowingPaginated(after: String, first: Int! = 20, target: String!, sortOrder: FollowSortOrder! = FOLLOW_AT_DESC): FollowListPaginated!
 }