diff --git a/__tests__/api/challenge-claim-api.test.ts b/__tests__/api/challenge-claim-api.test.ts
index f6b4791..e468760 100644
--- a/__tests__/api/challenge-claim-api.test.ts
+++ b/__tests__/api/challenge-claim-api.test.ts
@@ -39,7 +39,7 @@ describe('/api/challenge/claim', () => {
   });
 
   describe('POST', () => {
-    it('should return 401 when not authenticated', async () => {
+    it('인증되지 않은 경우 401을 반환한다', async () => {
       mockGetServerSession.mockResolvedValue(null);
 
       const request = new Request('http://localhost/api/challenge/claim', {
@@ -54,7 +54,7 @@ describe('/api/challenge/claim', () => {
       expect(data.message).toBe('Unauthorized');
     });
 
-    it('should return 400 when challengeId is missing', async () => {
+    it('challengeId가 없는 경우 400을 반환한다', async () => {
       mockGetServerSession.mockResolvedValue({
         user: { id: '1' },
       });
@@ -71,7 +71,7 @@ describe('/api/challenge/claim', () => {
       expect(data.message).toBe('Challenge ID is required');
     });
 
-    it('should successfully claim challenge reward', async () => {
+    it('챌린지 보상을 정상적으로 수령하면 200을 반환한다', async () => {
       mockGetServerSession.mockResolvedValue({
         user: { id: '1' },
       });
@@ -111,7 +111,7 @@ describe('/api/challenge/claim', () => {
       );
     });
 
-    it('should return 500 when cannot claim challenge', async () => {
+    it('보상을 받을 수 없는 챌린지인 경우 500을 반환한다', async () => {
       mockGetServerSession.mockResolvedValue({
         user: { id: '1' },
       });
@@ -138,7 +138,7 @@ describe('/api/challenge/claim', () => {
       expect(data.message).toBe('Already claimed');
     });
 
-    it('should return 400 when claim service returns failure', async () => {
+    it('보상 처리 중 실패한 경우 400을 반환한다', async () => {
       mockGetServerSession.mockResolvedValue({
         user: { id: '1' },
       });
@@ -166,7 +166,7 @@ describe('/api/challenge/claim', () => {
       expect(data.message).toBe('ISA account not found');
     });
 
-    it('should handle unexpected errors', async () => {
+    it('예상치 못한 오류가 발생하면 500을 반환한다', async () => {
       mockGetServerSession.mockResolvedValue({
         user: { id: '1' },
       });
diff --git a/__tests__/services/challenge-claim.test.ts b/__tests__/services/challenge-claim.test.ts
index 36ea1d5..1ace22b 100644
--- a/__tests__/services/challenge-claim.test.ts
+++ b/__tests__/services/challenge-claim.test.ts
@@ -20,7 +20,7 @@ describe('Challenge Claim Service', () => {
     mockTx = createChallengePrismaMock();
   });
 
-  it('should successfully claim ONCE type challenge reward', async () => {
+  it('ONCE 타입 챌린지 보상을 정상적으로 수령한다', async () => {
     // Arrange
     const mockChallenge = {
       id: challengeId,
@@ -88,7 +88,7 @@ describe('Challenge Claim Service', () => {
     expect(mockTx.userChallengeProgress.updateMany).not.toHaveBeenCalled();
   });
 
-  it('should successfully claim DAILY type challenge reward and reset progress', async () => {
+  it('DAILY 타입 챌린지 보상을 정상적으로 수령하고 진행도를 초기화한다', async () => {
     // Arrange
     const mockChallenge = {
       id: challengeId,
@@ -140,7 +140,7 @@ describe('Challenge Claim Service', () => {
     });
   });
 
-  it('should return error when challenge not found', async () => {
+  it('챌린지를 찾을 수 없으면 에러를 반환한다', async () => {
     mockTx.challenge.findUnique.mockResolvedValue(null);
 
     const result = await claimChallengeReward({ challengeId, userId }, mockTx);
@@ -149,7 +149,7 @@ describe('Challenge Claim Service', () => {
     expect(result.message).toBe('Challenge not found');
   });
 
-  it('should return error when ISA account not found', async () => {
+  it('ISA 계좌를 찾을 수 없으면 에러를 반환한다', async () => {
     const mockChallenge = {
       id: challengeId,
       etfId,
@@ -172,7 +172,7 @@ describe('Challenge Claim Service', () => {
     expect(result.message).toBe('ISA account not found');
   });
 
-  it('should return error when latest ETF price not found', async () => {
+  it('최신 ETF 가격을 찾을 수 없으면 에러를 반환한다', async () => {
     const mockChallenge = {
       id: challengeId,
       etfId,
@@ -196,7 +196,7 @@ describe('Challenge Claim Service', () => {
     expect(result.message).toBe('Latest ETF price not found');
   });
 
-  it('should handle existing ETF holding correctly', async () => {
+  it('기존 ETF 보유 내역이 있는 경우 올바르게 처리한다', async () => {
     // Arrange
     const mockChallenge = {
       id: challengeId,
@@ -276,7 +276,7 @@ describe('Challenge Claim Service', () => {
     });
   });
 
-  it('should correctly calculate avgCost when quantity and price have decimals', async () => {
+  it('수량과 가격이 소수일 경우 평균 단가를 올바르게 계산한다', async () => {
     const mockChallenge = {
       id: challengeId,
       etfId,
diff --git a/__tests__/services/challenge-status.test.ts b/__tests__/services/challenge-status.test.ts
index aacd7e9..cc0421e 100644
--- a/__tests__/services/challenge-status.test.ts
+++ b/__tests__/services/challenge-status.test.ts
@@ -16,7 +16,7 @@ describe('Challenge Status Service', () => {
   const today = dayjs().tz('Asia/Seoul').startOf('day');
 
   describe('calculateChallengeStatus', () => {
-    it('should return CLAIMED when challenge is already claimed', () => {
+    it('이미 보상을 수령한 챌린지는 CLAIMED를 반환한다', () => {
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
         challengeType: 'ONCE',
@@ -30,7 +30,7 @@ describe('Challenge Status Service', () => {
       expect(status).toBe('CLAIMED');
     });
 
-    it('should return ACHIEVABLE for ONCE type when progress >= 1', () => {
+    it('ONCE 타입 챌린지는 진행도가 1 이상이면 ACHIEVABLE을 반환한다', () => {
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
         challengeType: 'ONCE',
@@ -44,7 +44,7 @@ describe('Challenge Status Service', () => {
       expect(status).toBe('ACHIEVABLE');
     });
 
-    it('should return INCOMPLETE for ONCE type when progress < 1', () => {
+    it('ONCE 타입 챌린지는 진행도가 1 미만이면 INCOMPLETE를 반환한다', () => {
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
         challengeType: 'ONCE',
@@ -58,7 +58,7 @@ describe('Challenge Status Service', () => {
       expect(status).toBe('INCOMPLETE');
     });
 
-    it('should return ACHIEVABLE for STREAK type when progress >= 7 and updated today', () => {
+    it('STREAK 타입 챌린지는 진행도 7 이상이고 오늘 갱신됐으면 ACHIEVABLE을 반환한다', () => {
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
         challengeType: 'STREAK',
@@ -76,7 +76,7 @@ describe('Challenge Status Service', () => {
       expect(status).toBe('ACHIEVABLE');
     });
 
-    it('should return INCOMPLETE for STREAK type when progress >= 7 but not updated today', () => {
+    it('STREAK 타입 챌린지는 진행도 7 이상이어도 오늘 갱신되지 않았으면 INCOMPLETE를 반환한다', () => {
       const yesterday = today.subtract(1, 'day');
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
@@ -95,7 +95,7 @@ describe('Challenge Status Service', () => {
       expect(status).toBe('INCOMPLETE');
     });
 
-    it('should return ACHIEVABLE for DAILY type when progress > 0 and updated today', () => {
+    it('DAILY 타입 챌린지는 진행도가 0보다 크고 오늘 갱신됐으면 ACHIEVABLE을 반환한다', () => {
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
         challengeType: 'DAILY',
@@ -113,7 +113,7 @@ describe('Challenge Status Service', () => {
       expect(status).toBe('ACHIEVABLE');
     });
 
-    it('should return ACHIEVABLE for DAILY type when progress > 0 and created today', () => {
+    it('DAILY 타입 챌린지는 진행도가 0보다 크고 오늘 생성됐으면 ACHIEVABLE을 반환한다', () => {
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
         challengeType: 'DAILY',
@@ -131,7 +131,7 @@ describe('Challenge Status Service', () => {
       expect(status).toBe('ACHIEVABLE');
     });
 
-    it('should return CLAIMED for DAILY type when already claimed today', () => {
+    it('DAILY 타입 챌린지는 오늘 이미 보상을 수령했으면 CLAIMED를 반환한다', () => {
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
         challengeType: 'DAILY',
@@ -149,7 +149,7 @@ describe('Challenge Status Service', () => {
       expect(status).toBe('CLAIMED');
     });
 
-    it('should return INCOMPLETE for DAILY type when progress = 0 even if updated today', () => {
+    it('DAILY 타입 챌린지는 진행도가 0이면 오늘 갱신됐더라도 INCOMPLETE를 반환한다', () => {
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
         challengeType: 'DAILY',
@@ -167,7 +167,7 @@ describe('Challenge Status Service', () => {
       expect(status).toBe('INCOMPLETE');
     });
 
-    it('should return INCOMPLETE if no progress data exists', () => {
+    it('진행도 정보가 없으면 INCOMPLETE를 반환한다', () => {
       const challenge: ChallengeWithProgress = {
         id: BigInt(1),
         challengeType: 'ONCE',
@@ -187,7 +187,7 @@ describe('Challenge Status Service', () => {
       mockTx = createChallengePrismaMock();
     });
 
-    it('should return false when challenge not found', async () => {
+    it('챌린지를 찾을 수 없으면 false를 반환하고 이유를 제공한다', async () => {
       mockTx.challenge.findUnique.mockResolvedValue(null);
 
       const result = await canClaimChallenge(BigInt(1), userId, mockTx);
@@ -196,7 +196,7 @@ describe('Challenge Status Service', () => {
       expect(result.reason).toBe('Challenge not found');
     });
 
-    it('should return false when already claimed', async () => {
+    it('이미 보상을 수령한 챌린지는 false를 반환하고 이유를 제공한다', async () => {
       const mockChallenge = {
         id: BigInt(1),
         challengeType: 'ONCE',
@@ -214,7 +214,7 @@ describe('Challenge Status Service', () => {
       expect(result.reason).toBe('Already claimed');
     });
 
-    it('should return true when challenge is achievable', async () => {
+    it('보상이 가능한 챌린지는 true를 반환한다', async () => {
       const mockChallenge = {
         id: BigInt(1),
         challengeType: 'ONCE',
@@ -232,7 +232,7 @@ describe('Challenge Status Service', () => {
       expect(result.reason).toBeUndefined();
     });
 
-    it('should return false when challenge is not completed', async () => {
+    it('완료되지 않은 챌린지는 false를 반환하고 이유를 제공한다', async () => {
       const mockChallenge = {
         id: BigInt(1),
         challengeType: 'ONCE',
diff --git a/tsconfig.json b/tsconfig.json
index adf29d9..e07306a 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -36,11 +36,5 @@
     ".next/types/**/*.ts",
     "types/next-auth.d.ts"
   ],
-  "exclude": [
-    "node_modules",
-    "**/__tests__/**",
-    "**/__mocks__/**",
-    "**/*.test.ts",
-    "**/*.test.tsx"
-  ]
+  "exclude": ["node_modules"]
 }