diff --git a/apps/web/public/sitemap-0.xml b/apps/web/public/sitemap-0.xml
index 9a8cc02..ee74551 100644
--- a/apps/web/public/sitemap-0.xml
+++ b/apps/web/public/sitemap-0.xml
@@ -1,6 +1,6 @@
 <?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/manifest.webmanifest</loc><lastmod>2026-08-28T16:24:56.791Z</lastmod><changefreq>weekly</changefreq><priority>0.7</priority></url>
-<url><loc>https://www.singcode.kr/patch-notes</loc><lastmod>2026-08-28T16:24:56.793Z</lastmod><changefreq>weekly</changefreq><priority>0.7</priority></url>
-<url><loc>https://www.singcode.kr</loc><lastmod>2026-08-28T16:24:56.794Z</lastmod><changefreq>weekly</changefreq><priority>0.7</priority></url>
+<url><loc>https://www.singcode.kr/manifest.webmanifest</loc><lastmod>2026-08-31T07:03:47.228Z</lastmod><changefreq>weekly</changefreq><priority>0.7</priority></url>
+<url><loc>https://www.singcode.kr/patch-notes</loc><lastmod>2026-08-31T07:03:47.229Z</lastmod><changefreq>weekly</changefreq><priority>0.7</priority></url>
+<url><loc>https://www.singcode.kr</loc><lastmod>2026-08-31T07:03:47.229Z</lastmod><changefreq>weekly</changefreq><priority>0.7</priority></url>
 </urlset>
\ No newline at end of file
diff --git a/apps/web/src/app/info/like/SongItem.tsx b/apps/web/src/app/info/like/SongItem.tsx
index 6d24d49..f534ccb 100644
--- a/apps/web/src/app/info/like/SongItem.tsx
+++ b/apps/web/src/app/info/like/SongItem.tsx
@@ -2,6 +2,7 @@ import MarqueeText from '@/components/MarqueeText';
 import { Checkbox } from '@/components/ui/checkbox';
 import { AddListModalSong } from '@/types/song';
 import { cn } from '@/utils/cn';
+import { splitDisplay } from '@/utils/songDisplay';
 
 // 노래 항목 컴포넌트
 export default function SongItem({
@@ -13,6 +14,9 @@ export default function SongItem({
   isSelected: boolean;
   onToggleSelect: (id: string) => void;
 }) {
+  const titleParts = splitDisplay(song.title_ko, song.title);
+  const artistParts = splitDisplay(song.artist_ko, song.artist);
+
   return (
     <div className={cn('border-border flex items-center space-x-3 border-b py-2 last:border-0')}>
       <Checkbox
@@ -21,13 +25,17 @@ export default function SongItem({
         onCheckedChange={() => onToggleSelect(song.song_id)}
       />
       <div className="min-w-0 flex-1">
-        <MarqueeText className="text-sm font-medium">{song.title}</MarqueeText>
-        {song.title_ko && song.title_ko !== song.title && (
-          <MarqueeText className="text-muted-foreground text-xs">{song.title_ko}</MarqueeText>
+        <MarqueeText className="text-sm font-medium">{titleParts.primary}</MarqueeText>
+        {titleParts.secondary && (
+          <MarqueeText className="text-muted-foreground text-xs">
+            {titleParts.secondary}
+          </MarqueeText>
         )}
-        <MarqueeText className="text-muted-foreground text-xs">{song.artist}</MarqueeText>
-        {song.artist_ko && song.artist_ko !== song.artist && (
-          <MarqueeText className="text-muted-foreground/70 text-xs">{song.artist_ko}</MarqueeText>
+        <MarqueeText className="text-muted-foreground text-xs">{artistParts.primary}</MarqueeText>
+        {artistParts.secondary && (
+          <MarqueeText className="text-muted-foreground/70 text-xs">
+            {artistParts.secondary}
+          </MarqueeText>
         )}
       </div>
     </div>
diff --git a/apps/web/src/app/info/promotions/page.tsx b/apps/web/src/app/info/promotions/page.tsx
index 293e300..5ed759d 100644
--- a/apps/web/src/app/info/promotions/page.tsx
+++ b/apps/web/src/app/info/promotions/page.tsx
@@ -21,6 +21,7 @@ import { useDeleteUserPromotionMutation, useUserPromotionsQuery } from '@/querie
 import useAuthStore from '@/stores/useAuthStore';
 import { SongPromotion } from '@/types/promotion';
 import { getTodayKST } from '@/utils/kst';
+import { splitDisplay } from '@/utils/songDisplay';
 
 function PromotionItem({
   promotion,
@@ -34,8 +35,8 @@ function PromotionItem({
   const todayKST = getTodayKST();
   const canCancel = promotion.start_date > todayKST;
   const { title, artist, title_ko, artist_ko } = promotion;
-  const hasKoTitle = title_ko && title_ko !== title;
-  const hasKoArtist = artist_ko && artist_ko !== artist;
+  const titleParts = splitDisplay(title_ko, title);
+  const artistParts = splitDisplay(artist_ko, artist);
 
   const statusLabel = (() => {
     if (promotion.end_date < todayKST)
@@ -70,11 +71,13 @@ function PromotionItem({
       <div className="flex items-center gap-2">
         <div className="min-w-0 flex-1">
           <div className="flex flex-col gap-0.5">
-            <p className="truncate text-base font-medium">{title}</p>
-            {hasKoTitle && <p className="text-muted-foreground truncate text-xs">{title_ko}</p>}
-            <p className="text-muted-foreground truncate text-sm">{artist}</p>
-            {hasKoArtist && (
-              <p className="text-muted-foreground/70 truncate text-xs">{artist_ko}</p>
+            <p className="truncate text-base font-medium">{titleParts.primary}</p>
+            {titleParts.secondary && (
+              <p className="text-muted-foreground truncate text-xs">{titleParts.secondary}</p>
+            )}
+            <p className="text-muted-foreground truncate text-sm">{artistParts.primary}</p>
+            {artistParts.secondary && (
+              <p className="text-muted-foreground/70 truncate text-xs">{artistParts.secondary}</p>
             )}
           </div>
           <p className="bg-muted/50 text-foreground mt-2 rounded-md px-3 py-2 text-sm leading-relaxed whitespace-pre-line">
@@ -175,10 +178,10 @@ export default function MyPromotionsPage() {
           {confirmTarget && (
             <div className="space-y-2 py-2 text-sm">
               <p className="font-medium">
-                {confirmTarget.title_ko ?? confirmTarget.title}
+                {splitDisplay(confirmTarget.title_ko, confirmTarget.title).primary}
                 <span className="text-muted-foreground font-normal">
                   {' · '}
-                  {confirmTarget.artist_ko ?? confirmTarget.artist}
+                  {splitDisplay(confirmTarget.artist_ko, confirmTarget.artist).primary}
                 </span>
               </p>
               <p className="text-muted-foreground">
diff --git a/apps/web/src/app/info/save/FolderCard.tsx b/apps/web/src/app/info/save/FolderCard.tsx
index 993bb11..fc39b12 100644
--- a/apps/web/src/app/info/save/FolderCard.tsx
+++ b/apps/web/src/app/info/save/FolderCard.tsx
@@ -5,6 +5,7 @@ import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { Checkbox } from '@/components/ui/checkbox';
 import { Separator } from '@/components/ui/separator';
 import { SaveSongFolder } from '@/types/song';
+import { splitDisplay } from '@/utils/songDisplay';
 
 interface IProps {
   folder: SaveSongFolder;
@@ -96,33 +97,42 @@ export default function FolderCard({
           <div className="px-4">
             {folder.songList.length > 0 ? (
               <div className="space-y-2">
-                {folder.songList.map(song => (
-                  <div
-                    key={song.song_id}
-                    className="flex items-center gap-3 border-b py-2 last:border-0"
-                  >
-                    <Checkbox
-                      id={`song-${song.song_id}`}
-                      checked={!!selectedSongs[song.song_id]}
-                      onCheckedChange={() => toggleSongSelection(song.song_id)}
-                    />
-                    <div className="min-w-0 flex-1">
-                      <div className="flex items-center gap-2">
-                        <Music className="text-muted-foreground h-4 w-4 shrink-0" />
-                        <div>
-                          <p className="text-sm font-medium">{song.title}</p>
-                          {song.title_ko && song.title_ko !== song.title && (
-                            <p className="text-muted-foreground text-xs">{song.title_ko}</p>
-                          )}
-                          <p className="text-muted-foreground text-xs">{song.artist}</p>
-                          {song.artist_ko && song.artist_ko !== song.artist && (
-                            <p className="text-muted-foreground/70 text-xs">{song.artist_ko}</p>
-                          )}
+                {folder.songList.map(song => {
+                  const titleParts = splitDisplay(song.title_ko, song.title);
+                  const artistParts = splitDisplay(song.artist_ko, song.artist);
+
+                  return (
+                    <div
+                      key={song.song_id}
+                      className="flex items-center gap-3 border-b py-2 last:border-0"
+                    >
+                      <Checkbox
+                        id={`song-${song.song_id}`}
+                        checked={!!selectedSongs[song.song_id]}
+                        onCheckedChange={() => toggleSongSelection(song.song_id)}
+                      />
+                      <div className="min-w-0 flex-1">
+                        <div className="flex items-center gap-2">
+                          <Music className="text-muted-foreground h-4 w-4 shrink-0" />
+                          <div>
+                            <p className="text-sm font-medium">{titleParts.primary}</p>
+                            {titleParts.secondary && (
+                              <p className="text-muted-foreground text-xs">
+                                {titleParts.secondary}
+                              </p>
+                            )}
+                            <p className="text-muted-foreground text-xs">{artistParts.primary}</p>
+                            {artistParts.secondary && (
+                              <p className="text-muted-foreground/70 text-xs">
+                                {artistParts.secondary}
+                              </p>
+                            )}
+                          </div>
                         </div>
                       </div>
                     </div>
-                  </div>
-                ))}
+                  );
+                })}
               </div>
             ) : (
               <div className="text-muted-foreground py-4 text-center">
diff --git a/apps/web/src/app/popular/ArtistVotePanel.tsx b/apps/web/src/app/popular/ArtistVotePanel.tsx
index 74ca962..c8fb99b 100644
--- a/apps/web/src/app/popular/ArtistVotePanel.tsx
+++ b/apps/web/src/app/popular/ArtistVotePanel.tsx
@@ -244,7 +244,7 @@ export default function ArtistVotePanel() {
       </div>
 
       {!isAuthenticated && (
-        <div className="bg-background/70 absolute inset-0 z-10 flex flex-col items-center justify-center gap-2 rounded-lg backdrop-blur-[2px]">
+        <div className="bg-background/10 absolute inset-0 z-10 flex flex-col items-center justify-center gap-2 rounded-lg backdrop-blur-[1px]">
           <p className="text-foreground text-xl font-medium">로그인하면 참여할 수 있어요</p>
           <p className="text-muted-foreground text-sm">이 달의 아티스트를 직접 뽑아주세요.</p>
         </div>
diff --git a/apps/web/src/app/search/AddFolderModal.tsx b/apps/web/src/app/search/AddFolderModal.tsx
index 38159b3..10cb06e 100644
--- a/apps/web/src/app/search/AddFolderModal.tsx
+++ b/apps/web/src/app/search/AddFolderModal.tsx
@@ -23,6 +23,7 @@ import {
 } from '@/components/ui/select';
 import { useSaveSongFolderQuery } from '@/queries/saveSongFolderQuery';
 import { SaveSongFolderList, SearchSong } from '@/types/song';
+import { splitDisplay } from '@/utils/songDisplay';
 
 interface IProps {
   modalType: '' | 'POST' | 'PATCH';
@@ -47,6 +48,8 @@ export default function AddFolderModal({
   const [isExistingPlaylist, setIsExistingPlaylist] = useState(false);
 
   const { id: songId, title, artist, title_ko, artist_ko } = song;
+  const titleParts = splitDisplay(title_ko, title);
+  const artistParts = splitDisplay(artist_ko, artist);
 
   const LOGIC_TEXT = modalType === 'POST' ? '저장' : '수정';
 
@@ -113,13 +116,17 @@ export default function AddFolderModal({
 
         {/* 곡 정보 */}
         <div className="bg-muted mb-4 rounded-md p-3">
-          <MarqueeText className="text-base font-medium">{title}</MarqueeText>
-          {title_ko && title_ko !== title && (
-            <MarqueeText className="text-muted-foreground text-xs">{title_ko}</MarqueeText>
+          <MarqueeText className="text-base font-medium">{titleParts.primary}</MarqueeText>
+          {titleParts.secondary && (
+            <MarqueeText className="text-muted-foreground text-xs">
+              {titleParts.secondary}
+            </MarqueeText>
           )}
-          <MarqueeText className="text-muted-foreground text-sm">{artist}</MarqueeText>
-          {artist_ko && artist_ko !== artist && (
-            <MarqueeText className="text-muted-foreground/70 text-xs">{artist_ko}</MarqueeText>
+          <MarqueeText className="text-muted-foreground text-sm">{artistParts.primary}</MarqueeText>
+          {artistParts.secondary && (
+            <MarqueeText className="text-muted-foreground/70 text-xs">
+              {artistParts.secondary}
+            </MarqueeText>
           )}
         </div>
 
diff --git a/apps/web/src/app/search/HomePage.tsx b/apps/web/src/app/search/HomePage.tsx
index 7ed25ea..a6abae7 100644
--- a/apps/web/src/app/search/HomePage.tsx
+++ b/apps/web/src/app/search/HomePage.tsx
@@ -6,9 +6,7 @@ import { useInView } from 'react-intersection-observer';
 import { toast } from 'sonner';
 
 import { Button } from '@/components/ui/button';
-// import { Checkbox } from '@/components/ui/checkbox';
 import { Input } from '@/components/ui/input';
-// import { Label } from '@/components/ui/label';
 import { Tabs, TabsList, TabsTrigger } from '@/components/ui/tabs';
 import { TOUR_DEMO_SEARCH_TERM, TOUR_DEMO_SONG } from '@/constants/tourDemoSong';
 import useSaveSongModal from '@/hooks/useSaveSongModal';
@@ -19,7 +17,6 @@ import { SearchSong, SearchType } from '@/types/song';
 import { cn } from '@/utils/cn';
 
 import AddFolderModal from './AddFolderModal';
-// import ChatBot from './ChatBot';
 import JpnArtistList from './JpnArtistList';
 import NumberKeypad from './NumberKeypad';
 import PopularSearchHistory from './PopularSearchHistory';
@@ -65,11 +62,6 @@ export default function SearchPage() {
   const [isJpnArtistModalOpen, setIsJpnArtistModalOpen] = useState(false);
   const [isFocusAuto, setIsFocusAuto] = useState(false);
   const [isNumberKeypadOpen, setIsNumberKeypadOpen] = useState(false);
-  // const [isChatBotEnabled, setIsChatBotEnabled] = useState(() => {
-  //   if (typeof window === 'undefined') return true;
-  //   const stored = localStorage.getItem('chatbot-enabled');
-  //   return stored === null ? true : stored === 'true';
-  // });
 
   const [scrollRef, setScrollRef] = useState<HTMLDivElement | null>(null);
   const { ref, inView } = useInView({
@@ -79,11 +71,6 @@ export default function SearchPage() {
 
   const { guestToSingSongs } = useGuestToSingStore();
 
-  // const handleToggleChatBot = (checked: boolean) => {
-  //   setIsChatBotEnabled(checked);
-  //   localStorage.setItem('chatbot-enabled', String(checked));
-  // };
-
   const guestToSingIds = useMemo(
     () => new Set(guestToSingSongs?.map(item => item.songs.id)),
     [guestToSingSongs],
@@ -398,7 +385,7 @@ export default function SearchPage() {
           <div className="flex h-full flex-col gap-2">
             <div className="text-muted-foreground flex items-center gap-2">
               <Info className="h-4 w-4" />
-              <span className="m-2">전체 문장보다는 단어 단위로 검색해보세요</span>
+              <span className="m-2">단어 단위로 검색해주세요</span>
             </div>
 
             <div className="flex h-full flex-col justify-center gap-2">
@@ -419,9 +406,6 @@ export default function SearchPage() {
         />
       )}
 
-      {/* 챗봇 위젯 */}
-      {/* {isChatBotEnabled && <ChatBot setInputSearch={setSearch} />} */}
-
       <SearchTour
         onPrepareExampleSearch={handlePrepareExampleSearch}
         onTourNormalizeState={handleTourNormalizeState}
diff --git a/apps/web/src/app/search/SearchResultCard.tsx b/apps/web/src/app/search/SearchResultCard.tsx
index 11c7993..6911244 100644
--- a/apps/web/src/app/search/SearchResultCard.tsx
+++ b/apps/web/src/app/search/SearchResultCard.tsx
@@ -13,6 +13,7 @@ import { Card } from '@/components/ui/card';
 import { Dialog, DialogContent } from '@/components/ui/dialog';
 import useAuthStore from '@/stores/useAuthStore';
 import { SearchSong } from '@/types/song';
+import { splitDisplay } from '@/utils/songDisplay';
 
 import SongActionButtons from './SongActionButtons';
 
@@ -41,10 +42,8 @@ function SearchResultCard({
   onClickSave,
 }: SearchResultCardProps) {
   const { id, title, artist, title_ko, artist_ko, num_tj, num_ky, badges } = song;
-  const hasKoTitle = !!title_ko && title_ko !== title;
-  const hasKoArtist = !!artist_ko && artist_ko !== artist;
-  const displayTitle = hasKoTitle ? title_ko : title;
-  const displayArtist = hasKoArtist ? artist_ko : artist;
+  const titleParts = splitDisplay(title_ko, title);
+  const artistParts = splitDisplay(artist_ko, artist);
 
   const { isAuthenticated } = useAuthStore();
 
@@ -89,11 +88,11 @@ function SearchResultCard({
               <SongBadges badges={badges} className="mb-0.5" />
               <MarqueeText
                 className="hover:text-accent cursor-pointer text-base font-medium hover:underline hover:underline-offset-4"
-                onClick={() => handleCopy(displayTitle)}
+                onClick={() => handleCopy(titleParts.primary)}
               >
-                {displayTitle}
+                {titleParts.primary}
               </MarqueeText>
-              {hasKoTitle && (
+              {titleParts.secondary && (
                 <MarqueeText
                   className="text-muted-foreground hover:text-accent cursor-pointer text-xs hover:underline hover:underline-offset-4"
                   onClick={() => handleCopy(title)}
@@ -103,11 +102,11 @@ function SearchResultCard({
               )}
               <MarqueeText
                 className="text-muted-foreground hover:text-accent mt-0.5 cursor-pointer text-sm hover:underline hover:underline-offset-4"
-                onClick={() => handleCopy(displayArtist)}
+                onClick={() => handleCopy(artistParts.primary)}
               >
-                {displayArtist}
+                {artistParts.primary}
               </MarqueeText>
-              {hasKoArtist && (
+              {artistParts.secondary && (
                 <MarqueeText
                   className="text-muted-foreground/70 hover:text-accent cursor-pointer text-xs hover:underline hover:underline-offset-4"
                   onClick={() => handleCopy(artist)}
diff --git a/apps/web/src/app/tosing/ModalSongItem.tsx b/apps/web/src/app/tosing/ModalSongItem.tsx
index e6d8199..35017b1 100644
--- a/apps/web/src/app/tosing/ModalSongItem.tsx
+++ b/apps/web/src/app/tosing/ModalSongItem.tsx
@@ -2,6 +2,7 @@ import MarqueeText from '@/components/MarqueeText';
 import { Checkbox } from '@/components/ui/checkbox';
 import { AddListModalSong } from '@/types/song';
 import { cn } from '@/utils/cn';
+import { splitDisplay } from '@/utils/songDisplay';
 
 // 노래 항목 컴포넌트
 export default function ModalSongItem({
@@ -13,6 +14,9 @@ export default function ModalSongItem({
   isSelected: boolean;
   onToggleSelect: (id: string) => void;
 }) {
+  const titleParts = splitDisplay(song.title_ko, song.title);
+  const artistParts = splitDisplay(song.artist_ko, song.artist);
+
   return (
     <div
       className={cn(
@@ -27,13 +31,17 @@ export default function ModalSongItem({
         disabled={song.isInToSingList}
       />
       <div className="min-w-0 flex-1">
-        <MarqueeText className="text-sm font-medium">{song.title}</MarqueeText>
-        {song.title_ko && song.title_ko !== song.title && (
-          <MarqueeText className="text-muted-foreground text-xs">{song.title_ko}</MarqueeText>
+        <MarqueeText className="text-sm font-medium">{titleParts.primary}</MarqueeText>
+        {titleParts.secondary && (
+          <MarqueeText className="text-muted-foreground text-xs">
+            {titleParts.secondary}
+          </MarqueeText>
         )}
-        <MarqueeText className="text-muted-foreground text-xs">{song.artist}</MarqueeText>
-        {song.artist_ko && song.artist_ko !== song.artist && (
-          <MarqueeText className="text-muted-foreground/70 text-xs">{song.artist_ko}</MarqueeText>
+        <MarqueeText className="text-muted-foreground text-xs">{artistParts.primary}</MarqueeText>
+        {artistParts.secondary && (
+          <MarqueeText className="text-muted-foreground/70 text-xs">
+            {artistParts.secondary}
+          </MarqueeText>
         )}
       </div>
     </div>
diff --git a/apps/web/src/app/tosing/SongCard.tsx b/apps/web/src/app/tosing/SongCard.tsx
index 71bb4b8..950e9ae 100644
--- a/apps/web/src/app/tosing/SongCard.tsx
+++ b/apps/web/src/app/tosing/SongCard.tsx
@@ -38,7 +38,7 @@ export default function SongCard({ song, onDelete, onMoveToTop, onMoveToBottom }
             variant="ghost"
             size="icon"
             className={`h-13 flex-1 flex-col items-center justify-center`}
-            aria-label="삭제"
+            aria-label="최상위로 이동"
             onClick={onMoveToTop}
           >
             <ChevronsUp className="h-5 w-5" />
@@ -60,7 +60,7 @@ export default function SongCard({ song, onDelete, onMoveToTop, onMoveToBottom }
             variant="ghost"
             size="icon"
             className={`h-13 flex-1 flex-col items-center justify-center`}
-            aria-label="삭제"
+            aria-label="최하위로 이동"
             onClick={onMoveToBottom}
           >
             <ChevronsDown className="h-5 w-5" />
diff --git a/apps/web/src/components/PromotionBanner.tsx b/apps/web/src/components/PromotionBanner.tsx
index b256809..0521156 100644
--- a/apps/web/src/components/PromotionBanner.tsx
+++ b/apps/web/src/components/PromotionBanner.tsx
@@ -6,6 +6,7 @@ import { usePathname } from 'next/navigation';
 import { useEffect, useState } from 'react';
 
 import { useSongPromotionsQuery } from '@/queries/songPromotionQuery';
+import { splitDisplay } from '@/utils/songDisplay';
 
 const ALLOWED_PATHS = ['/', '/popular', '/recent', '/tosing'];
 const COLLAPSED_STORAGE_KEY = 'promotion-banner-collapsed';
@@ -49,8 +50,8 @@ export default function PromotionBanner() {
   if (promotions.length === 0) return null;
 
   const current = promotions[currentIndex];
-  const hasKoTitle = current.title_ko && current.title_ko !== current.title;
-  const hasKoArtist = current.artist_ko && current.artist_ko !== current.artist;
+  const titleParts = splitDisplay(current.title_ko, current.title);
+  const artistParts = splitDisplay(current.artist_ko, current.artist);
 
   return (
     <div className="border-border bg-card relative overflow-hidden rounded-lg border px-4 py-3">
@@ -98,20 +99,20 @@ export default function PromotionBanner() {
                 >
                   <div className="flex flex-col gap-0.5">
                     <div className="flex flex-col">
-                      <span className="truncate text-sm font-semibold">{current.title}</span>
-                      {hasKoTitle && (
+                      <span className="truncate text-sm font-semibold">{titleParts.primary}</span>
+                      {titleParts.secondary && (
                         <span className="text-muted-foreground truncate text-xs">
-                          {current.title_ko}
+                          {titleParts.secondary}
                         </span>
                       )}
                     </div>
                     <div className="flex flex-col">
                       <span className="text-muted-foreground truncate text-sm">
-                        {current.artist}
+                        {artistParts.primary}
                       </span>
-                      {hasKoArtist && (
+                      {artistParts.secondary && (
                         <span className="text-muted-foreground/70 truncate text-xs">
-                          {current.artist_ko}
+                          {artistParts.secondary}
                         </span>
                       )}
                     </div>
diff --git a/apps/web/src/components/ReportFieldCard.tsx b/apps/web/src/components/ReportFieldCard.tsx
index 8bf413c..83996e6 100644
--- a/apps/web/src/components/ReportFieldCard.tsx
+++ b/apps/web/src/components/ReportFieldCard.tsx
@@ -1,5 +1,6 @@
 import { ReportCardField } from '@/types/report';
 import { cn } from '@/utils/cn';
+import { splitDisplay } from '@/utils/songDisplay';
 
 interface ReportFieldCardProps {
   title: string;
@@ -12,16 +13,6 @@ interface ReportFieldCardProps {
   newValue: string | null;
 }
 
-function splitDisplay(
-  translated: string | undefined,
-  original: string,
-): { primary: string; secondary: string | null } {
-  if (translated && translated !== original) {
-    return { primary: translated, secondary: original };
-  }
-  return { primary: original || '-', secondary: null };
-}
-
 function NewValueIndicator({
   isVisible,
   value,
@@ -73,7 +64,9 @@ export default function ReportFieldCard({
         >
           <div className="flex min-w-0 flex-col gap-0.5">
             <div className="flex min-w-0 items-center gap-2">
-              <span className="min-w-0 truncate text-base font-medium">{titleParts.primary}</span>
+              <span className="min-w-0 truncate text-base font-medium">
+                {titleParts.primary || '-'}
+              </span>
               <NewValueIndicator
                 isVisible={isFieldActive('title')}
                 value={newValue}
@@ -95,7 +88,7 @@ export default function ReportFieldCard({
           <div className="flex min-w-0 flex-col gap-0.5">
             <div className="flex min-w-0 items-center gap-2">
               <span className="text-muted-foreground min-w-0 truncate text-sm">
-                {artistParts.primary}
+                {artistParts.primary || '-'}
               </span>
               <NewValueIndicator
                 isVisible={isFieldActive('artist')}
diff --git a/apps/web/src/components/SongPromotionModal.tsx b/apps/web/src/components/SongPromotionModal.tsx
index 404a394..212ce29 100644
--- a/apps/web/src/components/SongPromotionModal.tsx
+++ b/apps/web/src/components/SongPromotionModal.tsx
@@ -8,6 +8,7 @@ import { DateRange } from 'react-day-picker';
 import { usePostSongPromotionMutation } from '@/queries/songPromotionQuery';
 import { useUserQuery } from '@/queries/userQuery';
 import { getTomorrowKSTDate } from '@/utils/kst';
+import { splitDisplay } from '@/utils/songDisplay';
 
 import { Button } from './ui/button';
 import { Calendar } from './ui/calendar';
@@ -47,8 +48,8 @@ export default function SongPromotionModal({
   const canAfford = point >= cost;
   const canSubmit = days > 0 && content.trim().length > 0 && canAfford;
 
-  const displayTitle = title_ko && title_ko !== title ? title_ko : title;
-  const displayArtist = artist_ko && artist_ko !== artist ? artist_ko : artist;
+  const displayTitle = splitDisplay(title_ko, title).primary;
+  const displayArtist = splitDisplay(artist_ko, artist).primary;
 
   const handleProceed = () => {
     if (!canSubmit || !range?.from) return;
diff --git a/apps/web/src/components/SongSummary.tsx b/apps/web/src/components/SongSummary.tsx
index beeaff3..4279a57 100644
--- a/apps/web/src/components/SongSummary.tsx
+++ b/apps/web/src/components/SongSummary.tsx
@@ -7,6 +7,7 @@ import SongBadges from '@/components/SongBadges';
 import { useCurrentArtistOfMonthQuery } from '@/queries/artistVoteQuery';
 import { Song } from '@/types/song';
 import { cn } from '@/utils/cn';
+import { splitDisplay } from '@/utils/songDisplay';
 
 type SummarySong = Pick<
   Song,
@@ -28,8 +29,8 @@ interface SongSummaryProps {
 export default function SongSummary({ song, className }: SongSummaryProps) {
   const { title, artist, title_ko, artist_ko, num_tj, num_ky, badges } = song;
 
-  const hasKoTitle = !!title_ko && title_ko !== title;
-  const hasKoArtist = !!artist_ko && artist_ko !== artist;
+  const titleParts = splitDisplay(title_ko, title);
+  const artistParts = splitDisplay(artist_ko, artist);
 
   // songs.artist는 "IU(Feat.최백호)"처럼 원문 그대로라, artists 마스터에 등록된 정규화된
   // 이름과 곧이곧대로 비교하면 우승 아티스트의 피처링·듀엣 곡에 배지가 빠진다.
@@ -43,14 +44,18 @@ export default function SongSummary({ song, className }: SongSummaryProps) {
       <div className="flex min-w-0 flex-1 flex-col gap-0.5">
         <SongBadges badges={badges} className="mb-0.5" />
 
-        <MarqueeText className="text-base font-medium">{title}</MarqueeText>
-        {hasKoTitle && (
-          <MarqueeText className="text-muted-foreground text-xs">{title_ko}</MarqueeText>
+        <MarqueeText className="text-base font-medium">{titleParts.primary}</MarqueeText>
+        {titleParts.secondary && (
+          <MarqueeText className="text-muted-foreground text-xs">
+            {titleParts.secondary}
+          </MarqueeText>
         )}
 
-        <MarqueeText className="text-muted-foreground text-sm">{artist}</MarqueeText>
-        {hasKoArtist && (
-          <MarqueeText className="text-muted-foreground/70 text-xs">{artist_ko}</MarqueeText>
+        <MarqueeText className="text-muted-foreground text-sm">{artistParts.primary}</MarqueeText>
+        {artistParts.secondary && (
+          <MarqueeText className="text-muted-foreground/70 text-xs">
+            {artistParts.secondary}
+          </MarqueeText>
         )}
         {isArtistOfMonth && (
           <span className="mt-0.5 inline-flex w-fit items-center gap-1 rounded-full bg-amber-500/15 px-1.5 py-0.5 text-[10px] font-bold text-amber-600 dark:text-amber-400">
diff --git a/apps/web/src/utils/songDisplay.ts b/apps/web/src/utils/songDisplay.ts
new file mode 100644
index 0000000..75c2ed6
--- /dev/null
+++ b/apps/web/src/utils/songDisplay.ts
@@ -0,0 +1,21 @@
+/**
+ * 곡 제목·아티스트를 화면에 그릴 때의 표시 우선순위.
+ *
+ * 번역(`title_ko`/`artist_ko`)이 있으면 그쪽을 큰 줄로 올리고 원어를 작은 줄로 내린다.
+ * 검색 화면만 한국어 우선이고 부를곡·즐겨찾기·홍보는 원어 우선이라, 검색에서
+ * "요네즈 켄시"로 보고 담은 곡이 부를곡 목록에선 "米津玄師"로 떠 같은 곡을 눈으로
+ * 못 찾는 문제가 있었다. 화면마다 복붙돼 있던 규칙을 여기 한 곳으로 모았으니
+ * 우선순위를 바꿀 일이 생기면 이 함수만 고치면 된다.
+ *
+ * 번역이 없거나 원어와 같으면 `secondary`는 null이다 — 한국곡은 `title_ko`가
+ * 비어 있어 지금과 똑같이 한 줄로만 그려진다.
+ */
+export function splitDisplay(
+  translated: string | null | undefined,
+  original: string,
+): { primary: string; secondary: string | null } {
+  if (translated && translated !== original) {
+    return { primary: translated, secondary: original };
+  }
+  return { primary: original, secondary: null };
+}