diff --git "a/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/files_leeseohyun/S3Controller.java" "b/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/files_leeseohyun/S3Controller.java"
deleted file mode 100644
index c08ae6e..0000000
--- "a/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/files_leeseohyun/S3Controller.java"	
+++ /dev/null
@@ -1,53 +0,0 @@
-package ServerStudy5Cloud.ServerStudy5Cloud.Controller;
-
-import com.amazonaws.services.s3.AmazonS3;
-import com.amazonaws.services.s3.model.CannedAccessControlList;
-import com.amazonaws.services.s3.model.S3ObjectSummary;
-import lombok.RequiredArgsConstructor;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.multipart.MultipartFile;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
-
-@Controller
-@RequiredArgsConstructor
-public class S3Controller {
-
-    private final AmazonS3 amazonS3;
-
-    @Value("${cloud.aws.s3.bucket}")
-    private String bucketName;
-
-    @GetMapping("/")
-    public String listFiles(Model model) {
-        // S3 버킷의 객체 목록 가져오기
-        List<S3ObjectSummary> objectSummaries = amazonS3.listObjectsV2(bucketName).getObjectSummaries();
-        // getUrl로 객체 URL 가져온 후, List<String>에 넣어 index.html에 반환
-        List<String> fileUrls = new ArrayList<>();
-        for (S3ObjectSummary os : objectSummaries) {
-            String url = amazonS3.getUrl(bucketName, os.getKey()).toString();
-            fileUrls.add(url);
-        }
-        model.addAttribute("fileUrls", fileUrls);
-        return "index";
-    }
-
-    @PostMapping("/upload")
-    public String uploadFile(@RequestParam("file") MultipartFile file) throws IOException {
-        String filename = file.getOriginalFilename();
-        // putObject로 파일을 S3 버킷에 업로드
-        amazonS3.putObject(bucketName, filename, file.getInputStream(), null);
-        // ACL 퍼블릭으로 설정
-        amazonS3.setObjectAcl(bucketName, filename, CannedAccessControlList.PublicRead);
-        return "redirect:/";
-    }
-}
-// 동작 영상 : https://drive.google.com/file/d/10wPjsBbnbIR5E6pKbwmr2sZ-GsLY-FWP/view?usp=sharing
\ No newline at end of file
diff --git "a/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/files_leeseohyun/application.yml" "b/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/files_leeseohyun/application.yml"
deleted file mode 100644
index 4b7489c..0000000
--- "a/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/files_leeseohyun/application.yml"	
+++ /dev/null
@@ -1,15 +0,0 @@
-spring:
-  config:
-    import: optional:file:.env[.properties]
-# 이렇게 .env 파일을 사용하려고 했지만 잘 동작하지 않아서... 빌드 Edit Configuration에서 Environment variables로 설정해서 했습니다...!
-cloud:
-  aws:
-    s3:
-      bucket: ${S3_BUCKET}
-    stack.auto: false
-    region.static: ap-northeast-2
-    credentials:
-      access-key: ${CREDENTIALS_ACCESS_KEY}
-      secret-key: ${CREDENTIALS_SECRET_KEY}
-server:
-  port: 8080
\ No newline at end of file
diff --git "a/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/\354\235\264\354\204\234\355\230\204_5\354\243\274\354\260\250_\352\263\274\354\240\234.md" "b/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/\354\235\264\354\204\234\355\230\204_5\354\243\274\354\260\250_\352\263\274\354\240\234.md"
deleted file mode 100644
index fa3f376..0000000
--- "a/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/\354\235\264\354\204\234\355\230\204_5\354\243\274\354\260\250_\352\263\274\354\240\234.md"	
+++ /dev/null
@@ -1,11 +0,0 @@
-### 5주차 Server S-Day 과제 - 이서현
-> 과제: S3에 객체 업로드 및 조회
-
-> 심화 과제: application.yml 변경
-
-## 과제
-### 사진
-![image](https://github.com/GDSC-Ewha-5th/GDSC-Server-5th/assets/32611398/305cc543-d0df-46bc-8c28-d615a45a70fa)
-
-### 참고 자료
-* [Spring] 설정 파일 환경변수를 통해 숨기기 — Shin._.Mallang https://ttl-blog.tistory.com/1125