diff --git a/public/assets/gif/onboarding_final.gif b/public/assets/gif/onboarding_final.gif
new file mode 100644
index 00000000..8debf953
Binary files /dev/null and b/public/assets/gif/onboarding_final.gif differ
diff --git a/src/app/letter/[id]/page.tsx b/src/app/letter/[id]/page.tsx
index 9ec48a90..504da9fe 100644
--- a/src/app/letter/[id]/page.tsx
+++ b/src/app/letter/[id]/page.tsx
@@ -87,9 +87,7 @@ const LetterPage = () => {
 
   //편지 행성 변경
   const handlePlanet = () => {
-    router.push(
-      `/planet/move?letter=${letterData?.id}&senderName=${letterData?.sender}`
-    );
+    router.push(`/planet/move?letter=${id}&senderName=${letterData?.sender}`);
   };
 
   //삭제 모달 관리
diff --git a/src/app/mypage/page.tsx b/src/app/mypage/page.tsx
index 90db1b57..8a180a84 100644
--- a/src/app/mypage/page.tsx
+++ b/src/app/mypage/page.tsx
@@ -248,6 +248,7 @@ const ProfileInfo = styled.div`
   justify-content: center;
   gap: 4px;
   white-space: nowrap;
+  padding-right: 15px;
 `;
 
 const ProfileName = styled.div`
diff --git a/src/app/onboarding/page.tsx b/src/app/onboarding/page.tsx
index 6069156d..0763c1a2 100644
--- a/src/app/onboarding/page.tsx
+++ b/src/app/onboarding/page.tsx
@@ -63,7 +63,7 @@ const Onboarding = () => {
                 <br />
                 원하는 행성 안에 편지를 보관할 수 있어요
               </SubTitle>
-              <ContentImage src="/assets/gif/onboarding.gif" />
+              <ContentImage src="/assets/gif/onboarding_final.gif" />
             </Content>
           </ContentSlider>
         </ContentWrapper>
@@ -196,6 +196,7 @@ const LetterImage = styled.img`
   aspect-ratio: 1; // 정사각형 비율 유지
   border-radius: 5px;
   object-fit: cover;
+  background-color: black;
 `;
 
 const ContentImage = styled.img`