diff --git a/src/main/java/com/ComNCheck/ComNCheck/domain/majorEvent/model/entity/MajorEvent.java b/src/main/java/com/ComNCheck/ComNCheck/domain/majorEvent/model/entity/MajorEvent.java
index 9876800..06fa58c 100644
--- a/src/main/java/com/ComNCheck/ComNCheck/domain/majorEvent/model/entity/MajorEvent.java
+++ b/src/main/java/com/ComNCheck/ComNCheck/domain/majorEvent/model/entity/MajorEvent.java
@@ -42,7 +42,7 @@ public class MajorEvent {
     @Column(name = "localtion", nullable = false)
     private String location;
 
-    @Column(name = "notice", nullable = false)
+    @Column(name = "notice", nullable = false, columnDefinition = "TEXT")
     private String notice;
 
     @Column(name = "google_form_link")
diff --git a/src/main/java/com/ComNCheck/ComNCheck/domain/member/service/CustomOAuthMemberService.java b/src/main/java/com/ComNCheck/ComNCheck/domain/member/service/CustomOAuthMemberService.java
index 612c072..4da58a3 100644
--- a/src/main/java/com/ComNCheck/ComNCheck/domain/member/service/CustomOAuthMemberService.java
+++ b/src/main/java/com/ComNCheck/ComNCheck/domain/member/service/CustomOAuthMemberService.java
@@ -21,6 +21,9 @@
 public class CustomOAuthMemberService extends DefaultOAuth2UserService {
     private final MemberRepository memberRepository;
 
+    private final static String ADMIN_EMAIL_1 = "comncheck0306@gmail.com";
+    private final static String ADMIN_EMAIL_2 = "another0306@gmail.com";
+
     @Override
     @Transactional
     public OAuth2User loadUser(OAuth2UserRequest userRequest) throws OAuth2AuthenticationException {
@@ -32,16 +35,16 @@ public OAuth2User loadUser(OAuth2UserRequest userRequest) throws OAuth2Authentic
         //String sub = oAuth2User.getAttribute("sub"); 이메일 변경 여부 따지고 변경될경우 findByEmail 대신 findBySub 사용
         String hd = oAuth2User.getAttribute("hd");
 
-        if (!"hufs.ac.kr".equals(hd) && !"comncheck0306@gmail.com".equals(email)) {
+        if (!isAllowedUser(email, hd)) {
             OAuth2Error oauth2Error = new OAuth2Error(
                     "invalid_hosted_domain",
-                    "허용되지 않은 호스팅 도메인입니다.",
-                    null
+                    "허용되지 않은 호스팅 도메인 혹은 계정입니다.",
+                    "https://www.comncheck.com/login?error=invalid_domain"
             );
             throw new OAuth2AuthenticationException(oauth2Error, oauth2Error.toString());
         }
 
-        // 이메일 변경 가능시 sub 변
+        // 이메일 변경 가능시 sub 변수
         Member member = memberRepository.findByEmail(email).orElseGet(() -> {
             Member newMember = Member.builder()
                     .email(email)
@@ -52,9 +55,18 @@ public OAuth2User loadUser(OAuth2UserRequest userRequest) throws OAuth2Authentic
                     .build();
             memberRepository.save(newMember);
             return newMember;
-            });
+        });
+
+        return new CustomOAuth2Member(MemberDTO.of(member));
+    }
 
-            return new CustomOAuth2Member(MemberDTO.of(member));
+    private boolean isAllowedUser(String email, String hd) {
+        if ("hufs.ac.kr".equals(hd)
+                || ADMIN_EMAIL_1.equals(email)
+                || ADMIN_EMAIL_2.equals(email)) {
+            return true;
+        }
+        return false;
     }
 
     private String cleanString(String input) {
diff --git a/src/main/java/com/ComNCheck/ComNCheck/domain/roleChange/repository/RoleChangeRequestRepository.java b/src/main/java/com/ComNCheck/ComNCheck/domain/roleChange/repository/RoleChangeRequestRepository.java
index 37de7e4..e18d02f 100644
--- a/src/main/java/com/ComNCheck/ComNCheck/domain/roleChange/repository/RoleChangeRequestRepository.java
+++ b/src/main/java/com/ComNCheck/ComNCheck/domain/roleChange/repository/RoleChangeRequestRepository.java
@@ -1,7 +1,12 @@
 package com.ComNCheck.ComNCheck.domain.roleChange.repository;
 
 import com.ComNCheck.ComNCheck.domain.roleChange.model.entity.RoleChange;
+import java.util.List;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
 
 public interface RoleChangeRequestRepository extends JpaRepository<RoleChange, Long> {
+
+    @Query("SELECT r FROM RoleChange r ORDER BY r.requestId DESC")
+    List<RoleChange> findAllOrderByIdDesc();
 }
diff --git a/src/main/java/com/ComNCheck/ComNCheck/domain/roleChange/service/RoleChangeRequestService.java b/src/main/java/com/ComNCheck/ComNCheck/domain/roleChange/service/RoleChangeRequestService.java
index 9290c00..257e557 100644
--- a/src/main/java/com/ComNCheck/ComNCheck/domain/roleChange/service/RoleChangeRequestService.java
+++ b/src/main/java/com/ComNCheck/ComNCheck/domain/roleChange/service/RoleChangeRequestService.java
@@ -47,7 +47,7 @@ public List<RoleChangeListDTO> getAllRequests(Long memberId) {
                 .orElseThrow(() -> new MemberNotFoundException("등록된 회원이 없습니다."));
         isCheckRole(member);
 
-        List<RoleChange> requests = roleChangeRequestRepository.findAll();
+        List<RoleChange> requests = roleChangeRequestRepository.findAllOrderByIdDesc();
         return requests.stream()
                 .map(RoleChangeListDTO::of)
                 .collect(Collectors.toList());
diff --git a/src/main/java/com/ComNCheck/ComNCheck/domain/security/config/CustomFailureHandler.java b/src/main/java/com/ComNCheck/ComNCheck/domain/security/config/CustomFailureHandler.java
new file mode 100644
index 0000000..602f09c
--- /dev/null
+++ b/src/main/java/com/ComNCheck/ComNCheck/domain/security/config/CustomFailureHandler.java
@@ -0,0 +1,24 @@
+package com.ComNCheck.ComNCheck.domain.security.config;
+
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import org.springframework.security.core.AuthenticationException;
+import org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler;
+
+public class CustomFailureHandler extends SimpleUrlAuthenticationFailureHandler {
+
+    public CustomFailureHandler(String defaultFailureUrl) {
+        super(defaultFailureUrl);
+    }
+
+    @Override
+    public void onAuthenticationFailure(
+            HttpServletRequest request, 
+            HttpServletResponse response, 
+            AuthenticationException exception
+    ) throws IOException, ServletException {
+        super.onAuthenticationFailure(request, response, exception);
+    }
+}
diff --git a/src/main/java/com/ComNCheck/ComNCheck/domain/security/config/SecurityConfig.java b/src/main/java/com/ComNCheck/ComNCheck/domain/security/config/SecurityConfig.java
index a63db6a..b894111 100644
--- a/src/main/java/com/ComNCheck/ComNCheck/domain/security/config/SecurityConfig.java
+++ b/src/main/java/com/ComNCheck/ComNCheck/domain/security/config/SecurityConfig.java
@@ -70,6 +70,9 @@ public CorsConfiguration getCorsConfiguration(HttpServletRequest request) {
                         .userInfoEndpoint(userInfoEndpointConfig -> userInfoEndpointConfig
                                 .userService(customOAuth2MemberService))
                         .successHandler(customSuccessHandler)
+                        .failureHandler(new CustomFailureHandler(
+                                "https://www.comncheck.com/login?error=invalid_domain"
+                        ))
                 );
 
         http.addFilterBefore(new JWTFilter(jwtUtil), UsernamePasswordAuthenticationFilter.class);