diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index fcd56ef..f53da44 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -18,7 +18,8 @@
         "overlayscrollbars-react": "^0.5.6",
         "react": "^19.2.4",
         "react-dom": "^19.2.4",
-        "react-router-dom": "^7.14.0"
+        "react-router-dom": "^7.14.0",
+        "zustand": "^5.0.12"
       },
       "devDependencies": {
         "@eslint/js": "^9.39.4",
@@ -3139,6 +3140,35 @@
       "peerDependencies": {
         "zod": "^3.25.0 || ^4.0.0"
       }
+    },
+    "node_modules/zustand": {
+      "version": "5.0.12",
+      "resolved": "https://registry.npmjs.org/zustand/-/zustand-5.0.12.tgz",
+      "integrity": "sha512-i77ae3aZq4dhMlRhJVCYgMLKuSiZAaUPAct2AksxQ+gOtimhGMdXljRT21P5BNpeT4kXlLIckvkPM029OljD7g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12.20.0"
+      },
+      "peerDependencies": {
+        "@types/react": ">=18.0.0",
+        "immer": ">=9.0.6",
+        "react": ">=18.0.0",
+        "use-sync-external-store": ">=1.2.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "immer": {
+          "optional": true
+        },
+        "react": {
+          "optional": true
+        },
+        "use-sync-external-store": {
+          "optional": true
+        }
+      }
     }
   }
 }
diff --git a/frontend/package.json b/frontend/package.json
index c6606a8..b6f5333 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -20,7 +20,8 @@
     "overlayscrollbars-react": "^0.5.6",
     "react": "^19.2.4",
     "react-dom": "^19.2.4",
-    "react-router-dom": "^7.14.0"
+    "react-router-dom": "^7.14.0",
+    "zustand": "^5.0.12"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.4",
diff --git a/frontend/src/features/symbol/Symbol.jsx b/frontend/src/features/symbol/Symbol.jsx
index ff45795..f3d544e 100644
--- a/frontend/src/features/symbol/Symbol.jsx
+++ b/frontend/src/features/symbol/Symbol.jsx
@@ -3,7 +3,7 @@ import { useQuery, useMutation } from '@tanstack/react-query'
 import { api } from '../../api/client'
 import { useLayout } from '../../components/Layout'
 import Select from '../../components/Select'
-
+import { useSymbolStore } from './store'
 
 const TYPE_ORDER = ['아케인', '어센틱', '그랜드 어센틱']
 
@@ -57,12 +57,19 @@ function CharacterCard({ char, active, onSelect, onRemove }) {
   )
 }
 
-function SymbolCard({ symbol, equipped }) {
-  const [weeklyCount, setWeeklyCount] = useState(3)
-  const [dailyDone, setDailyDone] = useState(false)
+function SymbolCard({ symbol, equipped, charId }) {
+  const progress = useSymbolStore((s) => s.progress?.[charId]?.[symbol.id])
+  const updateSymbol = useSymbolStore((s) => s.updateSymbol)
+
+  const dailyDone = progress?.dailyDone ?? false
+  const weeklyCount = progress?.weeklyCount ?? 3
+  const daily = progress?.daily ?? symbol.daily_default
+  const extra = progress?.extra ?? 0
+  const patch = (p) => charId && updateSymbol(charId, symbol.id, p)
+
   // 임시 목업 값 (계산 기능 미구현)
-  const level = equipped ? 0 : 0
-  const growth = 0
+  const level = progress?.level ?? 0
+  const growth = progress?.growth ?? 0
   const requireGrowth = symbol.levels?.[0]?.required_count || 0
   const remainingSymbols = '-'
   const remainingMeso = '-'
@@ -96,7 +103,7 @@ function SymbolCard({ symbol, equipped }) {
         <button
           type="button"
           disabled={!equipped}
-          onClick={() => setDailyDone((v) => !v)}
+          onClick={() => patch({ dailyDone: !dailyDone })}
           title="오늘 일퀘 완료 여부"
           className={`shrink-0 rounded-md h-8 px-3 text-xs font-semibold border transition disabled:opacity-40 disabled:cursor-not-allowed ${
             dailyDone
@@ -132,7 +139,8 @@ function SymbolCard({ symbol, equipped }) {
           <input
             type="text"
             inputMode="numeric"
-            defaultValue={equipped ? String(symbol.daily_default) : '0'}
+            value={equipped ? String(daily) : '0'}
+            onChange={(e) => patch({ daily: Number(e.target.value.replace(/[^\d]/g, '')) || 0 })}
             disabled={!equipped}
             className="w-full h-10 rounded-md border border-white/10 bg-gray-950 px-3 text-base text-right tabular-nums outline-none focus:border-emerald-500/50 hover:border-white/20 disabled:opacity-50 transition"
           />
@@ -142,7 +150,7 @@ function SymbolCard({ symbol, equipped }) {
             <label className="block text-xs text-gray-400">주간퀘 획득</label>
             <Select
               value={weeklyCount}
-              onChange={setWeeklyCount}
+              onChange={(v) => patch({ weeklyCount: v })}
               options={[1, 2, 3].map((n) => ({
                 value: n,
                 label: `${n * symbol.weekly_default}개`,
@@ -156,7 +164,8 @@ function SymbolCard({ symbol, equipped }) {
           <input
             type="text"
             inputMode="numeric"
-            defaultValue="0"
+            value={equipped ? String(extra) : '0'}
+            onChange={(e) => patch({ extra: Number(e.target.value.replace(/[^\d]/g, '')) || 0 })}
             disabled={!equipped}
             className="w-full h-10 rounded-md border border-white/10 bg-gray-950 px-3 text-base text-right tabular-nums outline-none focus:border-emerald-500/50 hover:border-white/20 disabled:opacity-50 transition"
           />
@@ -199,8 +208,6 @@ export default function Symbol() {
     return () => setFullscreen(false)
   }, [setFullscreen])
 
-  const STORAGE_KEY = 'maple-symbol'
-
   // 심볼 목록 (DB에서 로드)
   const { data: allSymbols = [] } = useQuery({
     queryKey: ['symbol', 'symbols'],
@@ -222,42 +229,28 @@ export default function Symbol() {
   useEffect(() => {
     if (!tab && tabs.length) setTab(tabs[0].key)
   }, [tabs, tab])
-  const [characters, setCharacters] = useState(() => {
-    try {
-      const saved = localStorage.getItem(STORAGE_KEY)
-      if (saved) return JSON.parse(saved).characters || []
-    } catch { /* ignore */ }
-    return []
-  })
-  const [selectedCharId, setSelectedCharId] = useState(() => {
-    try {
-      const saved = localStorage.getItem(STORAGE_KEY)
-      if (saved) return JSON.parse(saved).selectedCharId ?? null
-    } catch { /* ignore */ }
-    return null
-  })
+  const characters = useSymbolStore((s) => s.characters)
+  const selectedCharId = useSymbolStore((s) => s.selectedCharId)
+  const addCharacter = useSymbolStore((s) => s.addCharacter)
+  const removeCharacter = useSymbolStore((s) => s.removeCharacter)
+  const selectCharacter = useSymbolStore((s) => s.selectCharacter)
+
   const [addName, setAddName] = useState('')
   const [addError, setAddError] = useState('')
 
-  useEffect(() => {
-    localStorage.setItem(STORAGE_KEY, JSON.stringify({ characters, selectedCharId }))
-  }, [characters, selectedCharId])
   const symbols = allSymbols.filter((s) => s.type === tab)
   const tabInfo = tabs.find((t) => t.key === tab)
 
   const searchMutation = useMutation({
     mutationFn: (name) => api(`/api/character/search?name=${encodeURIComponent(name)}`),
     onSuccess: (data) => {
-      setCharacters((prev) => {
-        if (prev.find((c) => c.character_name === data.character_name)) {
-          setAddError('이미 추가된 캐릭터입니다')
-          return prev
-        }
-        setAddError('')
-        setAddName('')
-        setSelectedCharId(data.ocid)
-        return [...prev, { ...data, id: data.ocid }]
-      })
+      if (characters.find((c) => c.character_name === data.character_name)) {
+        setAddError('이미 추가된 캐릭터입니다')
+        return
+      }
+      setAddError('')
+      setAddName('')
+      addCharacter(data)
     },
     onError: (err) => setAddError(err.message || '조회 실패'),
   })
@@ -290,7 +283,7 @@ export default function Symbol() {
               value={addName}
               onChange={(e) => { setAddName(e.target.value); if (addError) setAddError('') }}
               placeholder="캐릭터 닉네임으로 장착 심볼 불러오기"
-              className="w-full h-12 rounded-lg border-2 border-white/10 bg-gray-950 pl-10 pr-4 text-base outline-none focus:border-emerald-500/60 hover:border-white/20 transition"
+              className="w-full h-12 box-border rounded-lg border border-white/10 bg-gray-950 pl-10 pr-4 text-base outline-none focus:border-emerald-500/60 hover:border-white/20 transition"
             />
           </div>
           <button
@@ -311,11 +304,8 @@ export default function Symbol() {
                 key={c.id}
                 char={c}
                 active={c.id === selectedCharId}
-                onSelect={() => setSelectedCharId(c.id)}
-                onRemove={() => {
-                  setCharacters((prev) => prev.filter((x) => x.id !== c.id))
-                  if (selectedCharId === c.id) setSelectedCharId(null)
-                }}
+                onSelect={() => selectCharacter(c.id)}
+                onRemove={() => removeCharacter(c.id)}
               />
             ))}
           </div>
@@ -348,7 +338,7 @@ export default function Symbol() {
       {/* 심볼 카드 그리드 */}
       <div className="grid gap-4 grid-cols-1 sm:grid-cols-2 lg:grid-cols-3">
         {symbols.map((s, i) => (
-          <SymbolCard key={s.id} symbol={s} equipped={isEquipped(i)} />
+          <SymbolCard key={s.id} symbol={s} equipped={isEquipped(i)} charId={selectedCharId} />
         ))}
       </div>
 
diff --git a/frontend/src/features/symbol/store.js b/frontend/src/features/symbol/store.js
new file mode 100644
index 0000000..7705c5b
--- /dev/null
+++ b/frontend/src/features/symbol/store.js
@@ -0,0 +1,87 @@
+import { create } from 'zustand'
+import { persist } from 'zustand/middleware'
+
+/**
+ * 심볼 계산기 상태
+ * characters: [{ id, character_name, character_level, job_name, character_image, ... }]
+ * selectedCharId: 현재 선택된 캐릭터 id (ocid)
+ * progress: {
+ *   [charId]: {
+ *     [symbolId]: {
+ *       level: number,
+ *       growth: number,          // 현재 누적 성장치
+ *       daily: number,            // 일퀘 획득량 (기본값 수정 가능)
+ *       weeklyCount: 1|2|3,       // 주간퀘 횟수
+ *       extra: number,            // 추가 심볼
+ *       dailyDone: boolean,       // 금일 일퀘 완료 여부
+ *     }
+ *   }
+ * }
+ */
+export const useSymbolStore = create(persist(
+  (set, get) => ({
+    characters: [],
+    selectedCharId: null,
+    progress: {},
+
+    setCharacters: (next) => set((s) => ({
+      characters: typeof next === 'function' ? next(s.characters) : next,
+    })),
+
+    addCharacter: (char) => set((s) => {
+      if (s.characters.find((c) => c.character_name === char.character_name)) return s
+      const entry = { ...char, id: char.ocid }
+      return {
+        characters: [...s.characters, entry],
+        selectedCharId: entry.id,
+      }
+    }),
+
+    removeCharacter: (id) => set((s) => {
+      const nextProgress = { ...s.progress }
+      delete nextProgress[id]
+      return {
+        characters: s.characters.filter((c) => c.id !== id),
+        selectedCharId: s.selectedCharId === id ? null : s.selectedCharId,
+        progress: nextProgress,
+      }
+    }),
+
+    selectCharacter: (id) => set({ selectedCharId: id }),
+
+    getSymbolState: (charId, symbolId) => get().progress?.[charId]?.[symbolId],
+
+    updateSymbol: (charId, symbolId, patch) => set((s) => {
+      const charProg = s.progress[charId] || {}
+      const symProg = charProg[symbolId] || {}
+      return {
+        progress: {
+          ...s.progress,
+          [charId]: {
+            ...charProg,
+            [symbolId]: { ...symProg, ...patch },
+          },
+        },
+      }
+    }),
+
+    resetCharacter: (charId) => set((s) => {
+      const next = { ...s.progress }
+      delete next[charId]
+      return { progress: next }
+    }),
+  }),
+  {
+    name: 'maple-symbol',
+    version: 2,
+    migrate: (persisted) => {
+      // 이전 버전(단순 characters/selectedCharId 저장) 마이그레이션
+      if (!persisted) return { characters: [], selectedCharId: null, progress: {} }
+      return {
+        characters: persisted.characters || [],
+        selectedCharId: persisted.selectedCharId ?? null,
+        progress: persisted.progress || {},
+      }
+    },
+  },
+))