diff --git a/frontend/src/features/liberation/Liberation.jsx b/frontend/src/features/liberation/Liberation.jsx
index 7df661b..5252762 100644
--- a/frontend/src/features/liberation/Liberation.jsx
+++ b/frontend/src/features/liberation/Liberation.jsx
@@ -14,56 +14,90 @@ import WeekCard from './components/WeekCard'
 import QuestSelector from './components/QuestSelector'
 import PointsInput from './components/PointsInput'
 import ProgressBar from './components/ProgressBar'
+import WeeklyDefault from './components/WeeklyDefault'
 import DatePicker from '../../components/DatePicker'
 
 const STORAGE_KEY = 'maple-liberation'
 
 function makeEmptyWeek(startDate) {
-  const bosses = {}
-  WEEKLY_BOSSES.forEach((b) => {
-    bosses[b.key] = {
-      enabled: false,
-      difficulty: b.difficulties[0].key,
-      party: 1,
-    }
-  })
   return {
     startDate: dayjs(startDate).toISOString(),
-    bosses,
-    blackMage: {
-      enabled: false,
-      difficulty: MONTHLY_BOSSES[0].difficulties[0].key,
-      party: 1,
-    },
+    ...makeEmptyWeekly(),
   }
 }
 
+function makeEmptyWeekly() {
+  const bosses = {}
+  WEEKLY_BOSSES.forEach((b) => {
+    bosses[b.key] = { difficulty: 'none', party: 1, done: false }
+  })
+  return {
+    bosses,
+    blackMage: { difficulty: 'none', party: 1, done: false },
+  }
+}
+
+function bossEarn(boss, sel) {
+  if (!sel) return 0
+  const d = boss.difficulties.find((x) => x.key === sel.difficulty)
+  if (!d) return 0
+  return calcPoints(d.points, sel.party)
+}
+
 function calcWeekPoints(weekData) {
   let points = 0
   WEEKLY_BOSSES.forEach((b) => {
-    const sel = weekData.bosses[b.key]
-    if (!sel?.enabled) return
-    const diff = b.difficulties.find((d) => d.key === sel.difficulty)
-    if (!diff) return
-    points += calcPoints(diff.points, sel.party)
+    points += bossEarn(b, weekData.bosses[b.key])
   })
-  if (weekData.blackMage?.enabled) {
-    const bm = MONTHLY_BOSSES[0]
-    const diff = bm.difficulties.find((d) => d.key === weekData.blackMage.difficulty)
-    if (diff) points += calcPoints(diff.points, weekData.blackMage.party)
-  }
   return points
 }
 
+function calcDoneEarn(weekData) {
+  let points = 0
+  WEEKLY_BOSSES.forEach((b) => {
+    const sel = weekData.bosses[b.key]
+    if (sel?.done) points += bossEarn(b, sel)
+  })
+  return points
+}
+
+function calcMonthlyEarn(weekData) {
+  return bossEarn(MONTHLY_BOSSES[0], weekData.blackMage)
+}
+
+function calcMonthlyDoneEarn(weekData) {
+  return weekData.blackMage?.done ? bossEarn(MONTHLY_BOSSES[0], weekData.blackMage) : 0
+}
+
 export default function Liberation() {
   const [state, setState] = useState(() => {
     const saved = localStorage.getItem(STORAGE_KEY)
     if (saved) {
-      try { return JSON.parse(saved) } catch { /* ignore */ }
+      try {
+        const parsed = JSON.parse(saved)
+        if (!parsed.weekly) parsed.weekly = makeEmptyWeekly()
+        if (!parsed.startDate) parsed.startDate = dayjs(todayKST()).toISOString()
+        // enabled/'none' 필드 제거 마이그레이션
+        const migrate = (sel, defaultDiff) => {
+          if (!sel) return sel
+          if (!sel.difficulty || sel.difficulty === 'none') sel.difficulty = defaultDiff
+          delete sel.enabled
+          return sel
+        }
+        WEEKLY_BOSSES.forEach((b) => {
+          if (parsed.weekly.bosses?.[b.key]) {
+            parsed.weekly.bosses[b.key] = migrate(parsed.weekly.bosses[b.key], b.difficulties[0].key)
+          }
+        })
+        parsed.weekly.blackMage = migrate(parsed.weekly.blackMage, MONTHLY_BOSSES[0].difficulties[0].key)
+        return parsed
+      } catch { /* ignore */ }
     }
     return {
       startChapter: 0,
       currentPoints: 0,
+      startDate: dayjs(todayKST()).toISOString(),
+      weekly: makeEmptyWeekly(),
       weeks: [makeEmptyWeek(todayKST())],
     }
   })
@@ -112,18 +146,58 @@ export default function Liberation() {
     return result
   }, [state])
 
-  const initialCap = GENESIS_CHAPTERS[state.startChapter]?.required ?? 0
-  const initialClamped = Math.min(state.currentPoints, initialCap)
+  const currentChapterCap = GENESIS_CHAPTERS[state.startChapter]?.required ?? 0
+  const currentChapterFilled = Math.min(state.currentPoints, currentChapterCap)
   const initialAccumulated = GENESIS_CHAPTERS
     .slice(0, state.startChapter)
-    .reduce((s, c) => s + c.required, 0) + initialClamped
+    .reduce((s, c) => s + c.required, 0) + currentChapterFilled
   const alreadyDone = initialAccumulated >= GENESIS_TOTAL
-  const completedWeekIdx = progressByWeek.findIndex((w) => w.completed)
-  const isDone = alreadyDone || completedWeekIdx >= 0
+  const weeklyEarn = calcWeekPoints(state.weekly)
+  const remaining = Math.max(GENESIS_TOTAL - initialAccumulated, 0)
+  // 주간/월간 분리 계산
+  const doneEarn = calcDoneEarn(state.weekly)
+  const monthlyEarn = calcMonthlyEarn(state.weekly)
+  const monthlyDoneEarn = calcMonthlyDoneEarn(state.weekly)
+
+  function monthResetsBetween(start, end) {
+    let count = 0
+    let cursor = start.add(1, 'month').startOf('month')
+    while (!cursor.isAfter(end)) {
+      count++
+      cursor = cursor.add(1, 'month').startOf('month')
+    }
+    return count
+  }
+
+  const startKST = dayjs(state.startDate).tz('Asia/Seoul')
+  const currentMonthBMAvailable = monthlyEarn > 0 && monthlyDoneEarn === 0 ? monthlyEarn : 0
+  const adjustedRemaining = remaining + doneEarn + monthlyDoneEarn
+  let weeksNeeded = null
+  if (!alreadyDone && (weeklyEarn > 0 || monthlyEarn > 0)) {
+    for (let N = 1; N <= 520; N++) {
+      const weeklyCum = N * weeklyEarn
+      const endKST = startKST.add(N, 'week')
+      const monthlyCum = currentMonthBMAvailable + monthResetsBetween(startKST, endKST) * monthlyEarn
+      if (weeklyCum + monthlyCum >= adjustedRemaining) {
+        weeksNeeded = N
+        break
+      }
+    }
+  }
+
+  // 시작 날짜 기준 다음(또는 당일) 목요일
+  const startDay = dayjs(state.startDate).tz('Asia/Seoul')
+  const dow = startDay.day() // 0=일 ... 4=목
+  const daysToThu = dow <= 4 ? 4 - dow : 11 - dow
+  const upcomingThursday = startDay.add(daysToThu, 'day').startOf('day')
+
+  const isDone = alreadyDone || weeksNeeded !== null
+  // 시작일의 주 = 1주차, 다음 목요일 = 2주차 시작
+  // 완료일 = N주차의 목요일 = upcomingThursday + (weeksNeeded - 2) * 7일
   const completionDate = alreadyDone
     ? todayKST()
-    : completedWeekIdx >= 0
-      ? addWeeks(state.weeks[completedWeekIdx].startDate, 1)
+    : weeksNeeded !== null
+      ? upcomingThursday.add(weeksNeeded - 2, 'week').toDate()
       : null
 
   const updateWeek = (idx, newWeekData) => {
@@ -153,6 +227,8 @@ export default function Liberation() {
     setState({
       startChapter: 0,
       currentPoints: 0,
+      startDate: dayjs(todayKST()).toISOString(),
+      weekly: makeEmptyWeekly(),
       weeks: [makeEmptyWeek(todayKST())],
     })
   }
@@ -187,8 +263,8 @@ export default function Liberation() {
           <div className="space-y-1.5">
             <label className="block text-xs text-gray-400">시작 날짜</label>
             <DatePicker
-              value={formatDate(state.weeks[0].startDate)}
-              onChange={setFirstWeekDate}
+              value={formatDate(state.startDate)}
+              onChange={(d) => setState((prev) => ({ ...prev, startDate: dayjs(d).toISOString() }))}
             />
           </div>
 
@@ -211,6 +287,26 @@ export default function Liberation() {
           </div>
         </div>
       </div>
+
+      <WeeklyDefault
+        weekly={state.weekly}
+        onChange={(w) => setState((prev) => ({ ...prev, weekly: w }))}
+        totalWeekly={weeklyEarn}
+        totalMonthly={monthlyEarn}
+      />
+
+      <div className="max-w-2xl mx-auto flex justify-end">
+        <button
+          type="button"
+          onClick={resetAll}
+          className="inline-flex items-center gap-2 rounded-lg border border-red-500/50 bg-red-500/10 hover:bg-red-500/20 text-red-300 hover:text-red-200 px-5 py-2.5 text-sm font-semibold transition shadow-lg shadow-red-500/10"
+        >
+          <svg width="16" height="16" viewBox="0 0 16 16" fill="none">
+            <path d="M2 3H14M6 3V2C6 1.45 6.45 1 7 1H9C9.55 1 10 1.45 10 2V3M3 3L4 14C4 14.55 4.45 15 5 15H11C11.55 15 12 14.55 12 14L13 3" stroke="currentColor" strokeWidth="1.4" strokeLinecap="round" strokeLinejoin="round" />
+          </svg>
+          전체 초기화
+        </button>
+      </div>
     </div>
   )
 }
diff --git a/frontend/src/features/liberation/components/WeeklyDefault.jsx b/frontend/src/features/liberation/components/WeeklyDefault.jsx
new file mode 100644
index 0000000..318bad5
--- /dev/null
+++ b/frontend/src/features/liberation/components/WeeklyDefault.jsx
@@ -0,0 +1,114 @@
+import Select from '../../../components/Select'
+import Tooltip from '../../../components/Tooltip'
+import { WEEKLY_BOSSES, MONTHLY_BOSSES, LIBERATION_BOSS_IMAGE_BASE, calcPoints } from '../data'
+
+const PARTY_OPTIONS = [1, 2, 3, 4, 5, 6].map((n) => ({ value: n, label: `${n}인` }))
+const NONE_DIFFICULTY = { key: 'none', label: '격파 불가', points: 0 }
+
+function diffLabel(d, party) {
+  if (d.key === 'none') return <span className="text-gray-500">격파 불가</span>
+  const earned = calcPoints(d.points, party)
+  return (
+    <span>
+      {d.label} <span className="text-emerald-400">+{earned}</span>
+    </span>
+  )
+}
+
+function BossRow({ boss, sel, onChange, monthly = false }) {
+  const disabled = sel.difficulty === 'none'
+  const rowStyle = ''
+
+  const difficultyOptions = [NONE_DIFFICULTY, ...boss.difficulties]
+    .map((d) => ({ value: d.key, label: diffLabel(d, sel.party) }))
+
+  return (
+    <div className={`flex items-center gap-3 rounded-lg px-3 h-14 transition ${rowStyle}`}>
+      <Tooltip text={boss.name}>
+        <img src={`${LIBERATION_BOSS_IMAGE_BASE}/${boss.image}`} alt="" className="w-8 h-8 rounded object-cover shrink-0" />
+      </Tooltip>
+      <span className="text-sm font-medium flex-1 truncate">
+        {boss.name}
+        {monthly && <span className="ml-1.5 text-[10px] text-amber-400/80">월간</span>}
+      </span>
+
+      <div className="w-36">
+        <Select
+          value={sel.difficulty}
+          onChange={(v) => {
+            if (v === 'none') onChange({ difficulty: 'none', done: false })
+            else onChange({ difficulty: v })
+          }}
+          options={difficultyOptions}
+        />
+      </div>
+      <div className="w-20">
+        <Select
+          value={sel.party}
+          onChange={(v) => onChange({ party: v })}
+          options={PARTY_OPTIONS}
+          disabled={disabled}
+        />
+      </div>
+      <button
+        type="button"
+        disabled={disabled}
+        onClick={() => onChange({ done: !sel.done })}
+        className={`shrink-0 w-20 rounded-md h-8 text-xs font-semibold transition border ${
+          disabled
+            ? 'border-white/5 text-gray-700 cursor-not-allowed'
+            : sel.done
+              ? 'bg-emerald-500/20 border-emerald-500/50 text-emerald-300'
+              : 'border-white/10 text-gray-500 hover:border-white/20 hover:text-gray-300'
+        }`}
+      >
+        {sel.done ? '완료' : '미완료'}
+      </button>
+    </div>
+  )
+}
+
+export default function WeeklyDefault({ weekly, onChange, totalWeekly, totalMonthly }) {
+  const updateBoss = (key, patch) => {
+    onChange({ ...weekly, bosses: { ...weekly.bosses, [key]: { ...weekly.bosses[key], ...patch } } })
+  }
+  const updateBlackMage = (patch) => {
+    onChange({ ...weekly, blackMage: { ...weekly.blackMage, ...patch } })
+  }
+
+  return (
+    <div className="max-w-2xl mx-auto rounded-2xl border border-white/10 bg-gray-900/60 p-6 space-y-4">
+      <div className="flex items-baseline justify-between">
+        <div className="text-lg font-semibold text-emerald-300">주간 보스 설정</div>
+        <div className="text-sm text-gray-400 flex items-baseline gap-3">
+          <span>
+            주간 획득 <span className="text-emerald-300 font-semibold tabular-nums">+{totalWeekly}</span>
+          </span>
+          <span>
+            월간 획득 <span className="text-amber-300 font-semibold tabular-nums">+{totalMonthly}</span>
+          </span>
+        </div>
+      </div>
+
+      <div className="divide-y divide-white/5">
+        {WEEKLY_BOSSES.map((boss) => (
+          <BossRow
+            key={boss.key}
+            boss={boss}
+            sel={weekly.bosses[boss.key]}
+            onChange={(patch) => updateBoss(boss.key, patch)}
+          />
+        ))}
+        {MONTHLY_BOSSES.map((boss) => (
+          <BossRow
+            key={boss.key}
+            boss={boss}
+            sel={weekly.blackMage}
+            onChange={updateBlackMage}
+            monthly
+          />
+        ))}
+      </div>
+    </div>
+  )
+}
diff --git a/frontend/src/features/liberation/data.js b/frontend/src/features/liberation/data.js
index bdbc50a..fbba23b 100644
--- a/frontend/src/features/liberation/data.js
+++ b/frontend/src/features/liberation/data.js
@@ -15,13 +15,15 @@ export const GENESIS_CHAPTERS = [
 // 퀘스트 이미지 경로 (제네시스)
 export const QUEST_BOSS_IMAGE_BASE = 'https://s3.caadiq.co.kr/maplestory/liberation/genesis/quest/boss'
 export const QUEST_BTBOSS_IMAGE_BASE = 'https://s3.caadiq.co.kr/maplestory/liberation/genesis/quest/btboss'
+// 주간/월간 보스 초상화 (해방용)
+export const LIBERATION_BOSS_IMAGE_BASE = 'https://s3.caadiq.co.kr/maplestory/liberation/genesis/boss'
 
 export const GENESIS_TOTAL = GENESIS_CHAPTERS.reduce((s, c) => s + c.required, 0) // 6500
 
 // 주간 보스 (주 1회)
 export const WEEKLY_BOSSES = [
   {
-    key: 'lotus', name: '스우', image: '스우.webp',
+    key: 'lotus', name: '스우', image: '스우.png',
     difficulties: [
       { key: 'normal', label: '노말', points: 10 },
       { key: 'hard', label: '하드', points: 50 },
@@ -29,14 +31,14 @@ export const WEEKLY_BOSSES = [
     ],
   },
   {
-    key: 'damien', name: '데미안', image: '데미안.webp',
+    key: 'damien', name: '데미안', image: '데미안.png',
     difficulties: [
       { key: 'normal', label: '노말', points: 10 },
       { key: 'hard', label: '하드', points: 50 },
     ],
   },
   {
-    key: 'lucid', name: '루시드', image: '루시드.webp',
+    key: 'lucid', name: '루시드', image: '루시드.png',
     difficulties: [
       { key: 'easy', label: '이지', points: 15 },
       { key: 'normal', label: '노말', points: 20 },
@@ -44,7 +46,7 @@ export const WEEKLY_BOSSES = [
     ],
   },
   {
-    key: 'will', name: '윌', image: '윌.webp',
+    key: 'will', name: '윌', image: '윌.png',
     difficulties: [
       { key: 'easy', label: '이지', points: 15 },
       { key: 'normal', label: '노말', points: 25 },
@@ -52,32 +54,32 @@ export const WEEKLY_BOSSES = [
     ],
   },
   {
-    key: 'dusk', name: '더스크', image: '더스크.webp',
+    key: 'dusk', name: '더스크', image: '더스크.png',
     difficulties: [
       { key: 'normal', label: '노말', points: 20 },
       { key: 'chaos', label: '카오스', points: 65 },
     ],
   },
   {
-    key: 'darknell', name: '듄켈', image: '듄켈.webp',
-    difficulties: [
-      { key: 'normal', label: '노말', points: 25 },
-      { key: 'hard', label: '하드', points: 75 },
-    ],
-  },
-  {
-    key: 'jinhilla', name: '진 힐라', image: '진힐라.webp',
+    key: 'jinhilla', name: '진 힐라', image: '진 힐라.png',
     difficulties: [
       { key: 'normal', label: '노말', points: 45 },
       { key: 'hard', label: '하드', points: 90 },
     ],
   },
+  {
+    key: 'darknell', name: '듄켈', image: '듄켈.png',
+    difficulties: [
+      { key: 'normal', label: '노말', points: 25 },
+      { key: 'hard', label: '하드', points: 75 },
+    ],
+  },
 ]
 
 // 월간 보스
 export const MONTHLY_BOSSES = [
   {
-    key: 'blackmage', name: '검은 마법사', image: '검은마법사.webp',
+    key: 'blackmage', name: '검은 마법사', image: '검은 마법사.png',
     difficulties: [
       { key: 'hard', label: '하드', points: 600 },
       { key: 'extreme', label: '익스트림', points: 600 },