diff --git a/docs/frontend-legacy-parity.md b/docs/frontend-legacy-parity.md
index a94dac9..2865916 100644
--- a/docs/frontend-legacy-parity.md
+++ b/docs/frontend-legacy-parity.md
@@ -15,6 +15,8 @@ authenticated path as a real session without contacting a live database.
 The test suite intercepts only the tRPC operations required by each screen and
 fails on unknown operations. It also serves the checked-out reference image
 tree instead of replacing images with layout-neutral placeholders.
+`public-gaps.spec.ts` adds bounded fixtures for nation betting and the public
+NPC list, including mutations and recoverable API failures.
 
 Run the suite from the core2026 repository root:
 
@@ -43,6 +45,8 @@ storage, route guards, and image loading.
 | troop                     | `hwe/v_troop.php`                        | existing `app/game-frontend/e2e/troop.spec.ts` desktop/mobile geometry and interaction suite                                |
 | hall of fame              | `hwe/a_hallOfFame.php`                   | 500/1000px container, 100px ranking cells, 64px natural image, walnut/green textures, Pretendard, close-button focus        |
 | yearbook                  | `hwe/v_history.php`                      | 1000px 700+300 desktop grid, 500px stacked grid, month navigation, legacy textures, success and API-error flows             |
+| nation betting            | `hwe/v_nationBetting.php`                | 1000px/6-column desktop and 500px/3-column mobile grids, picked card style, payout table, success and retained-form error   |
+| public NPC list           | `hwe/a_npcList.php`                      | 1000px 12-column table with Chromium-expanded legacy widths, NPC color, eight sorts, retained table/sort after API error    |
 
 The global game baseline is black, white, Pretendard 14px. Legacy texture
 helpers intentionally follow `common.orig.css`: `bg0` is walnut, `bg1` is
diff --git a/tools/frontend-legacy-parity/playwright.config.mjs b/tools/frontend-legacy-parity/playwright.config.mjs
index 5184d11..b3bc4f7 100644
--- a/tools/frontend-legacy-parity/playwright.config.mjs
+++ b/tools/frontend-legacy-parity/playwright.config.mjs
@@ -6,7 +6,7 @@ const repositoryRoot = resolve(dirname(fileURLToPath(import.meta.url)), '../..')
 
 export default defineConfig({
     testDir: '.',
-    testMatch: 'visual-parity.spec.ts',
+    testMatch: ['visual-parity.spec.ts', 'public-gaps.spec.ts'],
     fullyParallel: false,
     workers: 1,
     timeout: 30_000,
diff --git a/tools/frontend-legacy-parity/public-gaps.spec.ts b/tools/frontend-legacy-parity/public-gaps.spec.ts
new file mode 100644
index 0000000..0977f8d
--- /dev/null
+++ b/tools/frontend-legacy-parity/public-gaps.spec.ts
@@ -0,0 +1,368 @@
+import { expect, test, type Page, type Route } from '@playwright/test';
+import { readFile } from 'node:fs/promises';
+import { dirname, resolve } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const repositoryRoot = resolve(dirname(fileURLToPath(import.meta.url)), '../..');
+const imageRoots = [
+    resolve(repositoryRoot, '../image/game'),
+    resolve(repositoryRoot, '../../image/game'),
+];
+const artifactRoot = process.env.FRONTEND_PARITY_ARTIFACT_DIR;
+
+const response = (data: unknown) => ({ result: { data } });
+const errorResponse = (path: string, message: string) => ({
+    error: {
+        message,
+        code: -32000,
+        data: { code: 'BAD_REQUEST', httpStatus: 400, path },
+    },
+});
+
+const operationNames = (route: Route): string[] => {
+    const pathname = new URL(route.request().url()).pathname;
+    return decodeURIComponent(pathname.slice(pathname.lastIndexOf('/trpc/') + 6)).split(',');
+};
+
+const fulfill = async (route: Route, results: unknown[]) => {
+    await route.fulfill({
+        status: 200,
+        contentType: 'application/json',
+        body: JSON.stringify(results),
+    });
+};
+
+const installImages = async (page: Page) => {
+    await page.route('**/image/game/**', async (route) => {
+        const filename = new URL(route.request().url()).pathname.split('/').at(-1) ?? '';
+        for (const root of imageRoots) {
+            try {
+                await route.fulfill({
+                    status: 200,
+                    contentType: 'image/jpeg',
+                    body: await readFile(resolve(root, filename)),
+                });
+                return;
+            } catch {
+                // Feature worktrees and the main checkout have different image-relative roots.
+            }
+        }
+        await route.abort('failed');
+    });
+};
+
+const installSession = async (page: Page) => {
+    await page.addInitScript(() => {
+        window.localStorage.setItem('sammo-game-token', 'ga_public_gaps');
+        window.localStorage.setItem('sammo-game-profile', 'che:default');
+    });
+};
+
+const bettingList = {
+    result: true,
+    bettingList: {
+        7: {
+            id: 7,
+            type: 'bettingNation',
+            name: '천통국 예상',
+            finished: false,
+            selectCnt: 2,
+            isExclusive: false,
+            reqInheritancePoint: true,
+            openYearMonth: 2316,
+            closeYearMonth: 2340,
+            winner: null,
+            totalAmount: 800,
+        },
+    },
+    year: 193,
+    month: 1,
+};
+
+const bettingDetail = {
+    result: true,
+    bettingInfo: {
+        id: 7,
+        type: 'bettingNation',
+        name: '천통국 예상',
+        finished: false,
+        selectCnt: 2,
+        isExclusive: false,
+        reqInheritancePoint: true,
+        openYearMonth: 2316,
+        closeYearMonth: 2340,
+        candidates: [
+            { title: '촉', info: '국력: 1200<br>장수 수: 8<br>도시 수: 5', isHtml: true },
+            { title: '위', info: '국력: 1100<br>장수 수: 7<br>도시 수: 4', isHtml: true },
+            { title: '오', info: '국력: 900<br>장수 수: 6<br>도시 수: 3', isHtml: true },
+            { title: '연', info: '국력: 700<br>장수 수: 5<br>도시 수: 2', isHtml: true },
+            { title: '양', info: '국력: 650<br>장수 수: 4<br>도시 수: 2', isHtml: true },
+            { title: '형', info: '국력: 600<br>장수 수: 3<br>도시 수: 1', isHtml: true },
+        ],
+        winner: null,
+    },
+    bettingDetail: [
+        ['[-1]', 500],
+        ['[0,1]', 200],
+        ['[1,2]', 100],
+    ],
+    myBetting: [['[0,1]', 50]],
+    remainPoint: 1200,
+    year: 193,
+    month: 1,
+};
+
+const installBettingFixture = async (page: Page) => {
+    await installImages(page);
+    await installSession(page);
+    let failBet = true;
+    await page.route('**/che/api/trpc/**', async (route) => {
+        const results = operationNames(route).map((operation) => {
+            if (operation === 'lobby.info') {
+                return response({ myGeneral: { id: 1, name: '테스트 장수' } });
+            }
+            if (operation === 'join.getConfig') {
+                return response({});
+            }
+            if (operation === 'betting.getList') {
+                return response(bettingList);
+            }
+            if (operation === 'betting.getDetail') {
+                return response(bettingDetail);
+            }
+            if (operation === 'betting.bet') {
+                if (failBet) {
+                    failBet = false;
+                    return errorResponse(operation, '유산포인트가 충분하지 않습니다.');
+                }
+                return response({ result: true });
+            }
+            return errorResponse(operation, `Unhandled fixture operation: ${operation}`);
+        });
+        await fulfill(route, results);
+    });
+};
+
+const npcNameRows = [
+    {
+        id: 1,
+        name: '관우',
+        npcState: 1,
+        ownerName: '악령 관우',
+        level: 4,
+        nationId: 1,
+        nationName: '촉',
+        personality: { key: 'che_의리', name: '의리', info: '의리를 중시합니다.' },
+        specialDomestic: { key: 'che_상재', name: '상재', info: '상업에 능합니다.' },
+        specialWar: { key: 'che_돌격', name: '돌격', info: '돌격에 능합니다.' },
+        statTotal: 260,
+        leadership: 90,
+        strength: 95,
+        intelligence: 75,
+        experience: 800,
+        dedication: 700,
+    },
+    {
+        id: 2,
+        name: '조운',
+        npcState: 2,
+        ownerName: '',
+        level: 5,
+        nationId: 0,
+        nationName: '-',
+        personality: { key: 'che_안전', name: '안전', info: '안전을 중시합니다.' },
+        specialDomestic: null,
+        specialWar: { key: 'che_견고', name: '견고', info: '방어에 능합니다.' },
+        statTotal: 270,
+        leadership: 95,
+        strength: 90,
+        intelligence: 85,
+        experience: 900,
+        dedication: 900,
+    },
+];
+
+const installNpcFixture = async (page: Page) => {
+    await installImages(page);
+    let npcCalls = 0;
+    await page.route('**/che/api/trpc/**', async (route) => {
+        const results = operationNames(route).map((operation) => {
+            if (operation === 'public.getNpcList') {
+                npcCalls += 1;
+                if (npcCalls === 3) {
+                    return errorResponse(operation, '빙의 일람을 불러오지 못했습니다.');
+                }
+                return response({
+                    sort: npcCalls === 1 ? 1 : 8,
+                    generals: npcCalls === 1 ? npcNameRows : [...npcNameRows].reverse(),
+                });
+            }
+            return errorResponse(operation, `Unhandled fixture operation: ${operation}`);
+        });
+        await fulfill(route, results);
+    });
+};
+
+test('nation betting matches the legacy desktop geometry and preserves a failed form', async ({ page }) => {
+    await installBettingFixture(page);
+    await page.setViewportSize({ width: 1280, height: 900 });
+    await page.goto('http://127.0.0.1:15102/che/nation-betting');
+    await expect(page.getByRole('button', { name: /천통국 예상/ })).toBeVisible();
+    await page.getByRole('button', { name: /천통국 예상/ }).click();
+    await expect(page.locator('.betting-candidate')).toHaveCount(6);
+
+    const geometry = await page.locator('#nation-betting-container').evaluate((container) => {
+        const containerRect = container.getBoundingClientRect();
+        const bar = container.querySelector<HTMLElement>('.legacy-top-bar')!.getBoundingClientRect();
+        const cards = Array.from(container.querySelectorAll<HTMLElement>('.betting-candidate'));
+        const cardStyle = getComputedStyle(cards[0]!);
+        return {
+            container: { x: containerRect.x, width: containerRect.width },
+            bar: { width: bar.width, height: bar.height },
+            cardWidths: cards.map((card) => card.getBoundingClientRect().width),
+            cardStyle: {
+                borderWidth: cardStyle.borderWidth,
+                borderRadius: cardStyle.borderRadius,
+                cursor: cardStyle.cursor,
+                fontSize: cardStyle.fontSize,
+                lineHeight: cardStyle.lineHeight,
+            },
+        };
+    });
+
+    expect(geometry.container).toEqual({ x: 140, width: 1000 });
+    expect(geometry.bar).toEqual({ width: 1000, height: 32 });
+    expect(geometry.cardWidths.every((width) => Math.abs(width - 162) < 1)).toBe(true);
+    expect(geometry.cardStyle).toEqual({
+        borderWidth: '1px',
+        borderRadius: '7px',
+        cursor: 'pointer',
+        fontSize: '14px',
+        lineHeight: '18.2px',
+    });
+
+    await page.locator('.betting-candidate').nth(0).click();
+    await page.locator('.betting-candidate').nth(1).click();
+    const pickedStyle = await page.locator('.betting-candidate').first().evaluate((candidate) => {
+        const style = getComputedStyle(candidate);
+        return { borderColor: style.borderColor, outlineWidth: style.outlineWidth, titleWeight: getComputedStyle(candidate.querySelector('.candidate-title')!).fontWeight };
+    });
+    expect(pickedStyle.borderColor).toBe('rgb(255, 255, 255)');
+    // Chromium snaps the legacy 1.5px CSS outline to one device pixel at DSF 1.
+    expect(pickedStyle.outlineWidth).toBe('1px');
+    expect(Number(pickedStyle.titleWeight)).toBeGreaterThanOrEqual(700);
+
+    const amountInput = page.getByLabel('베팅 금액');
+    await amountInput.fill('300');
+    await page.getByRole('button', { name: '베팅', exact: true }).click();
+    await expect(page.getByRole('alert')).toContainText('유산포인트가 충분하지 않습니다.');
+    await expect(amountInput).toHaveValue('300');
+    await expect(page.locator('.betting-candidate.picked')).toHaveCount(2);
+
+    await page.getByRole('button', { name: '베팅', exact: true }).click();
+    await expect(page.getByRole('status')).toContainText('베팅했습니다');
+    await expect(amountInput).toHaveValue('0');
+
+    if (artifactRoot) {
+        await page.screenshot({ path: resolve(artifactRoot, 'nation-betting-core-desktop.png'), fullPage: true });
+    }
+});
+
+test('nation betting keeps the legacy 500px three-column mobile contract', async ({ page }) => {
+    await installBettingFixture(page);
+    await page.setViewportSize({ width: 500, height: 900 });
+    await page.goto('http://127.0.0.1:15102/che/nation-betting');
+    await page.getByRole('button', { name: /천통국 예상/ }).click();
+    await expect(page.locator('.betting-candidate')).toHaveCount(6);
+
+    const geometry = await page.locator('#nation-betting-container').evaluate((container) => {
+        const rect = container.getBoundingClientRect();
+        const cards = Array.from(container.querySelectorAll<HTMLElement>('.betting-candidate'));
+        return {
+            x: rect.x,
+            width: rect.width,
+            firstWidth: cards[0]!.getBoundingClientRect().width,
+            fourthY: cards[3]!.getBoundingClientRect().y,
+            firstY: cards[0]!.getBoundingClientRect().y,
+        };
+    });
+    expect(geometry.x).toBe(0);
+    expect(geometry.width).toBe(500);
+    expect(geometry.firstWidth).toBeCloseTo(161.328125, 3);
+    expect(geometry.fourthY).toBeGreaterThan(geometry.firstY);
+
+    if (artifactRoot) {
+        await page.screenshot({ path: resolve(artifactRoot, 'nation-betting-core-mobile.png'), fullPage: true });
+    }
+});
+
+test('NPC list matches the legacy table geometry, sorting and error retention', async ({ page }) => {
+    await installNpcFixture(page);
+    await page.setViewportSize({ width: 1024, height: 800 });
+    await page.goto('http://127.0.0.1:15102/che/npc-list');
+    await expect(page.locator('.npc-table tbody tr')).toHaveCount(2);
+
+    const geometry = await page.locator('#npc-list-container').evaluate((container) => {
+        const containerRect = container.getBoundingClientRect();
+        const tableRect = container.querySelector<HTMLElement>('.npc-table')!.getBoundingClientRect();
+        const headers = Array.from(container.querySelectorAll<HTMLElement>('.npc-table th'));
+        const style = getComputedStyle(headers[0]!);
+        return {
+            container: { x: containerRect.x, width: containerRect.width },
+            tableWidth: tableRect.width,
+            headerWidths: headers.map((header) => header.getBoundingClientRect().width),
+            headerStyle: {
+                height: headers[0]!.getBoundingClientRect().height,
+                borderWidth: style.borderWidth,
+                padding: style.padding,
+                fontSize: style.fontSize,
+                lineHeight: style.lineHeight,
+            },
+        };
+    });
+
+    expect(geometry.container).toEqual({ x: 12, width: 1000 });
+    expect(geometry.tableWidth).toBe(1000);
+    // The legacy width attributes total 974px; Chromium proportionally expands them into the 1000px table.
+    expect(geometry.headerWidths).toEqual([
+        104.609375,
+        104.609375,
+        69.734375,
+        121.015625,
+        69.734375,
+        90.25,
+        69.734375,
+        69.734375,
+        69.734375,
+        69.734375,
+        80,
+        80.109375,
+    ]);
+    expect(geometry.headerStyle).toEqual({
+        height: 20,
+        borderWidth: '1px',
+        padding: '0px',
+        fontSize: '14px',
+        lineHeight: '18.2px',
+    });
+    await expect(page.locator('.npc-table tbody tr').first()).toContainText('관우');
+    await expect(page.locator('.npc-table tbody tr').first().locator('td').first()).toHaveCSS('color', 'rgb(135, 206, 235)');
+    const personality = page.locator('.npc-table tbody tr').first().locator('.trait-tooltip').first();
+    await personality.hover();
+    await expect(personality.getByRole('tooltip')).toBeVisible();
+    expect(await personality.evaluate((element) => getComputedStyle(element).cursor)).toBe('help');
+
+    await page.locator('#npc-list-sort').selectOption('8');
+    await page.getByRole('button', { name: '정렬하기' }).click();
+    await expect(page.locator('.npc-table tbody tr').first()).toContainText('조운');
+
+    await page.locator('#npc-list-sort').selectOption('7');
+    await page.getByRole('button', { name: '정렬하기' }).click();
+    await expect(page.getByRole('alert')).toContainText('빙의 일람을 불러오지 못했습니다.');
+    await expect(page.locator('#npc-list-sort')).toHaveValue('7');
+    await expect(page.locator('.npc-table tbody tr').first()).toContainText('조운');
+
+    if (artifactRoot) {
+        await page.screenshot({ path: resolve(artifactRoot, 'npc-list-core-desktop.png'), fullPage: true });
+    }
+});