diff --git a/backend/models/SundayMaple.js b/backend/models/SundayMaple.js
new file mode 100644
index 0000000..80c237f
--- /dev/null
+++ b/backend/models/SundayMaple.js
@@ -0,0 +1,21 @@
+import { DataTypes } from 'sequelize';
+import { sequelize } from '../lib/db.js';
+
+export const SundayMaple = sequelize.define('SundayMaple', {
+  id: { type: DataTypes.INTEGER, autoIncrement: true, primaryKey: true },
+  // 해당 주의 금요일 (KST, YYYY-MM-DD)
+  week_start: { type: DataTypes.DATEONLY, allowNull: false, unique: true },
+  variant: {
+    type: DataTypes.ENUM('normal', 'special'),
+    allowNull: false,
+    defaultValue: 'normal',
+  },
+  event_post_id: { type: DataTypes.STRING(50) },
+  event_post_url: { type: DataTypes.STRING(500) },
+  source_image_url: { type: DataTypes.STRING(500) },
+  image_url: { type: DataTypes.STRING(500), allowNull: false },
+  fetched_at: { type: DataTypes.DATE, allowNull: false, defaultValue: DataTypes.NOW },
+}, {
+  tableName: 'sunday_maple',
+  underscored: true,
+});
diff --git a/backend/models/index.js b/backend/models/index.js
index 1422c4b..bea4918 100644
--- a/backend/models/index.js
+++ b/backend/models/index.js
@@ -1,5 +1,6 @@
 import { Image } from './Image.js';
 import { Menu } from './Menu.js';
+import { SundayMaple } from './SundayMaple.js';
 import { BossCrystalBoss } from './boss-crystal/Boss.js';
 import { BossCrystalBossDifficulty } from './boss-crystal/BossDifficulty.js';
 import { Symbol } from './symbol/Symbol.js';
@@ -24,4 +25,4 @@ Symbol.hasMany(SymbolLevel, {
 });
 SymbolLevel.belongsTo(Symbol, { foreignKey: 'symbol_id', as: 'symbol' });
 
-export { Image, Menu, BossCrystalBoss, BossCrystalBossDifficulty, Symbol, SymbolLevel };
+export { Image, Menu, SundayMaple, BossCrystalBoss, BossCrystalBossDifficulty, Symbol, SymbolLevel };
diff --git a/backend/package-lock.json b/backend/package-lock.json
index 8b398f0..bb1d3b7 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -11,10 +11,12 @@
         "@aws-sdk/client-s3": "^3.800.0",
         "axios": "^1.9.0",
         "cors": "^2.8.5",
+        "dayjs": "^1.11.20",
         "express": "^5.1.0",
         "mariadb": "^3.4.0",
         "multer": "^2.0.0",
         "mysql2": "^3.14.1",
+        "node-cron": "^4.2.1",
         "sequelize": "^6.37.5",
         "sharp": "^0.34.1"
       }
@@ -2314,6 +2316,12 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/dayjs": {
+      "version": "1.11.20",
+      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.20.tgz",
+      "integrity": "sha512-YbwwqR/uYpeoP4pu043q+LTDLFBLApUP6VxRihdfNTqu4ubqMlGDLd6ErXhEgsyvY0K6nCs7nggYumAN+9uEuQ==",
+      "license": "MIT"
+    },
     "node_modules/debug": {
       "version": "4.4.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
@@ -3051,6 +3059,15 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/node-cron": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/node-cron/-/node-cron-4.2.1.tgz",
+      "integrity": "sha512-lgimEHPE/QDgFlywTd8yTR61ptugX3Qer29efeyWw2rv259HtGBNn1vZVmp8lB9uo9wC0t/AT4iGqXxia+CJFg==",
+      "license": "ISC",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
     "node_modules/object-assign": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
diff --git a/backend/package.json b/backend/package.json
index 7872b0f..36295b9 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -8,14 +8,16 @@
     "dev": "node --watch server.js"
   },
   "dependencies": {
-    "express": "^5.1.0",
-    "cors": "^2.8.5",
-    "sequelize": "^6.37.5",
-    "mysql2": "^3.14.1",
-    "mariadb": "^3.4.0",
     "@aws-sdk/client-s3": "^3.800.0",
     "axios": "^1.9.0",
+    "cors": "^2.8.5",
+    "dayjs": "^1.11.20",
+    "express": "^5.1.0",
+    "mariadb": "^3.4.0",
     "multer": "^2.0.0",
+    "mysql2": "^3.14.1",
+    "node-cron": "^4.2.1",
+    "sequelize": "^6.37.5",
     "sharp": "^0.34.1"
   }
 }
diff --git a/backend/routes/sunday-maple.js b/backend/routes/sunday-maple.js
new file mode 100644
index 0000000..90920a5
--- /dev/null
+++ b/backend/routes/sunday-maple.js
@@ -0,0 +1,45 @@
+import { Router } from 'express';
+import { SundayMaple } from '../models/index.js';
+import {
+  currentWeekFriday,
+  isInSundayWindow,
+  fetchAndSaveSundayMaple,
+} from '../services/sundayMaple.js';
+
+const router = Router();
+
+// 이번 주 썬데이 메이플 조회 (금~일만 available)
+router.get('/current', async (req, res) => {
+  try {
+    if (!isInSundayWindow()) {
+      return res.json({ available: false });
+    }
+
+    const weekStart = currentWeekFriday();
+    let row = await SundayMaple.findOne({ where: { week_start: weekStart } });
+
+    // DB에 없으면 lazy fetch 시도 (cron이 놓친 경우 대비)
+    if (!row) {
+      try {
+        row = await fetchAndSaveSundayMaple();
+      } catch (err) {
+        console.error('[sunday-maple] lazy fetch 실패:', err.message);
+      }
+    }
+
+    if (!row) return res.json({ available: false });
+
+    res.json({
+      available: true,
+      variant: row.variant,
+      week_start: row.week_start,
+      image_url: row.image_url,
+      event_post_url: row.event_post_url,
+    });
+  } catch (err) {
+    console.error('[sunday-maple/current] 오류:', err);
+    res.status(500).json({ error: '조회 실패' });
+  }
+});
+
+export default router;
diff --git a/backend/server.js b/backend/server.js
index 538e876..e50a017 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -7,8 +7,10 @@ import bossCrystalRoutes from './routes/boss-crystal.js';
 import characterRoutes from './routes/character.js';
 import imageRoutes from './routes/images.js';
 import symbolRoutes from './routes/symbol.js';
+import sundayMapleRoutes from './routes/sunday-maple.js';
 import { sequelize } from './lib/db.js';
 import './models/index.js';
+import { scheduleSundayMapleCron } from './services/sundayMapleCron.js';
 
 const app = express();
 const PORT = process.env.PORT || 3000;
@@ -27,6 +29,7 @@ app.use('/api/boss-crystal', bossCrystalRoutes);
 app.use('/api/character', characterRoutes);
 app.use('/api/images', imageRoutes);
 app.use('/api/symbols', symbolRoutes);
+app.use('/api/sunday-maple', sundayMapleRoutes);
 app.use('/api/admin', adminRoutes);
 
 app.get('/api/health', (_req, res) => {
@@ -40,6 +43,8 @@ async function start() {
     await sequelize.sync();
     console.log('테이블 동기화 완료');
 
+    scheduleSundayMapleCron();
+
     app.listen(PORT, () => {
       console.log(`서버 시작: http://localhost:${PORT}`);
     });
diff --git a/backend/services/sundayMaple.js b/backend/services/sundayMaple.js
new file mode 100644
index 0000000..c977702
--- /dev/null
+++ b/backend/services/sundayMaple.js
@@ -0,0 +1,132 @@
+import axios from 'axios';
+import dayjs from 'dayjs';
+import utc from 'dayjs/plugin/utc.js';
+import timezone from 'dayjs/plugin/timezone.js';
+import { SundayMaple } from '../models/index.js';
+import { uploadObject, getPublicUrl } from '../lib/s3.js';
+
+dayjs.extend(utc);
+dayjs.extend(timezone);
+const KST = 'Asia/Seoul';
+
+const NEXON_API_BASE = 'https://open.api.nexon.com';
+const RUSTFS_PREFIX = 'sunday';
+
+/**
+ * 제목을 파싱하여 썬데이 메이플 변형을 반환
+ * @returns {'normal'|'special'|null}
+ */
+export function detectVariant(title) {
+  if (!title) return null;
+  const t = title.trim();
+  if (!t.includes('썬데이') || !t.includes('메이플')) return null;
+  return t.includes('스페셜') ? 'special' : 'normal';
+}
+
+/**
+ * 금요일 기준의 이번 주차 시작일 (YYYY-MM-DD, KST) 반환
+ * 금/토/일 → 직전 금요일
+ * 월/화/수/목 → 이전 주 금요일
+ */
+export function currentWeekFriday(now = dayjs().tz(KST)) {
+  const dow = now.day(); // 0=일 ... 5=금 6=토
+  // 금요일 기준 diff: 금(5)이면 0, 토(6)이면 -1, 일(0)이면 -2, 월(1)이면 -3 ...
+  const diff = dow >= 5 ? dow - 5 : dow + 2;
+  return now.startOf('day').subtract(diff, 'day').format('YYYY-MM-DD');
+}
+
+/**
+ * 금~일요일인지
+ */
+export function isInSundayWindow(now = dayjs().tz(KST)) {
+  const dow = now.day();
+  return dow === 5 || dow === 6 || dow === 0;
+}
+
+/**
+ * Nexon 이벤트 API에서 이번 주 썬데이 메이플 항목 찾기
+ */
+async function findSundayPost() {
+  const { data } = await axios.get(`${NEXON_API_BASE}/maplestory/v1/notice-event`, {
+    headers: { 'x-nxopen-api-key': process.env.NEXON_API_KEY },
+  });
+  const list = data.event_notice || [];
+  const weekStart = currentWeekFriday();
+  // 제목 매칭 + 이번 주 시작
+  return list.find((n) => {
+    if (detectVariant(n.title) === null) return null;
+    const start = n.date_event_start ? dayjs(n.date_event_start).tz(KST).format('YYYY-MM-DD') : null;
+    // date_event_start가 금요일 아닐 수 있음 → 시작일이 해당 주 금요일과 같은 주인지 체크
+    if (!start) return false;
+    const sameWeek = dayjs(start).tz(KST).isSame(dayjs(weekStart).tz(KST), 'week')
+      // dayjs isSame 'week' 는 일요일 기준이라 금/토 확인 필요 → 직접 비교
+      || Math.abs(dayjs(start).diff(dayjs(weekStart), 'day')) <= 2;
+    return sameWeek;
+  }) || null;
+}
+
+/**
+ * 게시글 HTML에서 첫 번째 컨텐츠 PNG URL 추출
+ */
+async function scrapeImageUrl(postUrl) {
+  const { data: html } = await axios.get(postUrl, {
+    headers: { 'User-Agent': 'Mozilla/5.0' },
+  });
+  const re = /<img[^>]+src=["'](https:\/\/lwi\.nexon\.com\/maplestory\/\d{4}\/\d{4}_board\/[^"']+\.png)["']/i;
+  const m = html.match(re);
+  return m ? m[1] : null;
+}
+
+/**
+ * Nexon CDN에서 이미지 다운로드 → rustfs 업로드 → URL 반환
+ */
+async function downloadAndUpload(sourceUrl, weekStart) {
+  const { data: buffer } = await axios.get(sourceUrl, {
+    responseType: 'arraybuffer',
+    headers: { 'User-Agent': 'Mozilla/5.0' },
+  });
+  const key = `${RUSTFS_PREFIX}/${weekStart}.png`;
+  await uploadObject(key, Buffer.from(buffer), 'image/png');
+  return { key, url: getPublicUrl(key) };
+}
+
+/**
+ * 핵심: 이번 주 썬데이 메이플을 Nexon에서 찾아 rustfs에 업로드하고 DB 저장.
+ * 이미 DB에 있으면 그대로 반환 (noop).
+ *
+ * @returns SundayMaple | null (게시글 아직 없음)
+ */
+export async function fetchAndSaveSundayMaple() {
+  const weekStart = currentWeekFriday();
+
+  // 이미 저장되어 있으면 스킵
+  const existing = await SundayMaple.findOne({ where: { week_start: weekStart } });
+  if (existing) return existing;
+
+  const post = await findSundayPost();
+  if (!post) return null;
+
+  const variant = detectVariant(post.title);
+  const sourceUrl = await scrapeImageUrl(post.url);
+  if (!sourceUrl) {
+    console.warn('[sunday-maple] 이미지 URL 못찾음:', post.url);
+    return null;
+  }
+
+  const { url: uploadedUrl } = await downloadAndUpload(sourceUrl, weekStart);
+
+  // 업로드 완료 후 DB insert (동시성 대비 findOrCreate)
+  const [row] = await SundayMaple.findOrCreate({
+    where: { week_start: weekStart },
+    defaults: {
+      week_start: weekStart,
+      variant,
+      event_post_id: String(post.notice_id || ''),
+      event_post_url: post.url,
+      source_image_url: sourceUrl,
+      image_url: uploadedUrl,
+    },
+  });
+  console.log('[sunday-maple] 저장 완료:', weekStart, variant, uploadedUrl);
+  return row;
+}
diff --git a/backend/services/sundayMapleCron.js b/backend/services/sundayMapleCron.js
new file mode 100644
index 0000000..70aaa8b
--- /dev/null
+++ b/backend/services/sundayMapleCron.js
@@ -0,0 +1,35 @@
+import cron from 'node-cron';
+import { fetchAndSaveSundayMaple } from './sundayMaple.js';
+
+const POLL_INTERVAL_MS = 10_000; // 10초 간격
+const MAX_DURATION_MS = 5 * 60 * 1000; // 최대 5분
+
+/**
+ * 금요일 9시부터 10초 간격 폴링 → 찾으면 저장 후 종료, 5분 타임아웃.
+ */
+async function runPolling() {
+  const started = Date.now();
+  console.log('[sunday-maple cron] 폴링 시작');
+
+  while (Date.now() - started < MAX_DURATION_MS) {
+    try {
+      const row = await fetchAndSaveSundayMaple();
+      if (row) {
+        console.log('[sunday-maple cron] 저장 완료 → 종료');
+        return;
+      }
+    } catch (err) {
+      console.warn('[sunday-maple cron] 폴링 중 오류:', err.message);
+    }
+    await new Promise((r) => setTimeout(r, POLL_INTERVAL_MS));
+  }
+  console.log('[sunday-maple cron] 5분 타임아웃 → 종료 (lazy fallback이 커버)');
+}
+
+/**
+ * 매주 금요일 09:00 KST 실행
+ */
+export function scheduleSundayMapleCron() {
+  cron.schedule('0 9 * * 5', runPolling, { timezone: 'Asia/Seoul' });
+  console.log('[sunday-maple cron] 매주 금요일 09:00 KST 스케줄 등록');
+}