diff --git a/apps/web/public/sitemap-0.xml b/apps/web/public/sitemap-0.xml
index 87729978..b99893f4 100644
--- a/apps/web/public/sitemap-0.xml
+++ b/apps/web/public/sitemap-0.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:news="http://www.google.com/schemas/sitemap-news/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:mobile="http://www.google.com/schemas/sitemap-mobile/1.0" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1" xmlns:video="http://www.google.com/schemas/sitemap-video/1.1">
-<url><loc>https://www.singcode.kr</loc><lastmod>2026-04-05T15:20:24.064Z</lastmod><changefreq>weekly</changefreq><priority>0.7</priority></url>
+<url><loc>https://www.singcode.kr</loc><lastmod>2026-04-08T12:54:39.507Z</lastmod><changefreq>weekly</changefreq><priority>0.7</priority></url>
 </urlset>
\ No newline at end of file
diff --git a/apps/web/src/Header.tsx b/apps/web/src/Header.tsx
index 6baf813a..1b388b3d 100644
--- a/apps/web/src/Header.tsx
+++ b/apps/web/src/Header.tsx
@@ -1,5 +1,6 @@
 'use client';
 
+import { format } from 'date-fns';
 import { CalendarCheck, MessageCircleQuestion, Moon, Sun } from 'lucide-react';
 import { useTheme } from 'next-themes';
 import { useRouter } from 'next/navigation';
@@ -58,6 +59,8 @@ export default function Header() {
   const { data: user, isLoading } = useUserQuery();
 
   const lastCheckIn = user?.last_check_in ?? new Date();
+  const today = format(new Date(), 'yyyy-MM-dd');
+  const isCheckedIn = format(new Date(lastCheckIn), 'yyyy-MM-dd') >= today;
 
   const handleClickContact = () => {
     const contactUrl = 'https://walla.my/survey/K79c5bC6alDqc1qiaaES';
@@ -78,6 +81,12 @@ export default function Header() {
     }
   };
 
+  useEffect(() => {
+    if (!isLoading && !!user && !isCheckedIn) {
+      setOpen(true);
+    }
+  }, [isLoading, user, isCheckedIn]);
+
   useEffect(() => {
     const handleClickOutside = (e: MouseEvent) => {
       if (headerRef.current && !headerRef.current.contains(e.target as Node)) {
@@ -124,6 +133,7 @@ export default function Header() {
           <DialogContent>
             <CheckInModal
               lastCheckIn={lastCheckIn}
+              isCheckedIn={isCheckedIn}
               isLogin={!!user}
               handleNavigateLogin={handleNavigateLogin}
             />
diff --git a/apps/web/src/components/CheckInModal.tsx b/apps/web/src/components/CheckInModal.tsx
index 5f2c03fa..de00e631 100644
--- a/apps/web/src/components/CheckInModal.tsx
+++ b/apps/web/src/components/CheckInModal.tsx
@@ -1,6 +1,5 @@
 'use client';
 
-import { format } from 'date-fns';
 import { Clock } from 'lucide-react';
 
 import Checked from '@/assets/lotties/Checked.json';
@@ -16,12 +15,14 @@ import ActionAnimationFlow from './ActionAnimationFlow';
 
 interface CheckInModalProps {
   lastCheckIn: Date;
+  isCheckedIn: boolean;
   isLogin: boolean;
   handleNavigateLogin: () => void;
 }
 
 export default function CheckInModal({
   lastCheckIn,
+  isCheckedIn,
   isLogin,
   handleNavigateLogin,
 }: CheckInModalProps) {
@@ -33,10 +34,6 @@ export default function CheckInModal({
 
   const { mutate: patchUserCheckIn } = usePatchUserCheckInMutation();
 
-  const today = format(new Date(), 'yyyy-MM-dd');
-
-  const parseLastCheckIn = format(new Date(lastCheckIn), 'yyyy-MM-dd');
-
   const handleClickCheckIn = () => {
     patchUserCheckIn();
   };
@@ -54,7 +51,7 @@ export default function CheckInModal({
           <ActionAnimationFlow
             animationData={Checked}
             clickCallback={handleClickCheckIn}
-            initalStatus={parseLastCheckIn >= today ? 'DONE' : 'IDLE'}
+            initalStatus={isCheckedIn ? 'DONE' : 'IDLE'}
             // 1. 대기 화면 (trigger 함수를 받아서 버튼에 연결)
             idleView={trigger => (
               <div className="flex flex-col items-center gap-4 text-center">
diff --git a/apps/web/src/components/FallingIcons.tsx b/apps/web/src/components/FallingIcons.tsx
index 93c274b4..61f6feda 100644
--- a/apps/web/src/components/FallingIcons.tsx
+++ b/apps/web/src/components/FallingIcons.tsx
@@ -154,5 +154,5 @@ export default function FallingIcons({ count }: FallingIconsProps) {
     }
   }, [count]);
 
-  return <div ref={sceneRef} className="h-[300px] w-full overflow-hidden bg-amber-50" />;
+  return <div ref={sceneRef} className="h-[300px] w-full overflow-hidden border" />;
 }
diff --git a/packages/crawling/CLAUDE.md b/packages/crawling/CLAUDE.md
index 3bdf7d00..141d5cda 100644
--- a/packages/crawling/CLAUDE.md
+++ b/packages/crawling/CLAUDE.md
@@ -118,11 +118,11 @@ taggingSongs.ts
 
 ### GitHub Actions 워크플로우
 
-| 워크플로우 파일          | 스케줄 (UTC) | 실행 스크립트         |
-| ----------------------- | ------------ | -------------------- |
-| `crawl_recent_tj.yml`   | 매일 14:00   | `pnpm recent-tj`     |
-| `tagging_song.yml`      | 매일 14:00   | `pnpm tag-songs`     |
-| `update_ky_youtube.yml` | 수동         | `pnpm ky-youtube`    |
-| `verify_ky_youtube.yml` | 수동         | `pnpm ky-verify`     |
+| 워크플로우 파일         | 스케줄 (UTC) | 실행 스크립트     |
+| ----------------------- | ------------ | ----------------- |
+| `crawl_recent_tj.yml`   | 매일 14:00   | `pnpm recent-tj`  |
+| `tagging_song.yml`      | 매일 14:00   | `pnpm tag-songs`  |
+| `update_ky_youtube.yml` | 수동         | `pnpm ky-youtube` |
+| `verify_ky_youtube.yml` | 수동         | `pnpm ky-verify`  |
 
 모든 워크플로우는 `workflow_dispatch`로 수동 실행도 가능하다.
diff --git a/packages/crawling/src/utils/getSongTag.ts b/packages/crawling/src/utils/getSongTag.ts
index 49998464..e9c484dd 100644
--- a/packages/crawling/src/utils/getSongTag.ts
+++ b/packages/crawling/src/utils/getSongTag.ts
@@ -1,5 +1,5 @@
-import OpenAI from 'openai';
 import dotenv from 'dotenv';
+import OpenAI from 'openai';
 
 import { getClient } from '@/supabase/getClient';