diff --git a/scripts/bangdream-render-smoke-matrix.ps1 b/scripts/bangdream-render-smoke-matrix.ps1
new file mode 100644
index 0000000..05e3257
--- /dev/null
+++ b/scripts/bangdream-render-smoke-matrix.ps1
@@ -0,0 +1,257 @@
+param(
+  [string]$OutDir = ".kt-workspace/bangdream-smoke/matrix",
+  [int]$TimeoutSeconds = 240,
+  [switch]$SkipExternalPlayer
+)
+
+$ErrorActionPreference = "Stop"
+
+$ProjectRoot = Split-Path -Parent $PSScriptRoot
+$ResolvedOutDir = if ([System.IO.Path]::IsPathRooted($OutDir)) {
+  $OutDir
+} else {
+  Join-Path $ProjectRoot $OutDir
+}
+New-Item -ItemType Directory -Force -Path $ResolvedOutDir | Out-Null
+
+$StdoutLog = Join-Path $ResolvedOutDir "matrix.out.log"
+$StderrLog = Join-Path $ResolvedOutDir "matrix.err.log"
+$SummaryFile = Join-Path $ResolvedOutDir "matrix-summary.json"
+Remove-Item -LiteralPath $StdoutLog,$StderrLog,$SummaryFile -Force -ErrorAction SilentlyContinue
+
+$Payload = @{
+  outDir = $ResolvedOutDir
+  skipExternalPlayer = [bool]$SkipExternalPlayer
+}
+$PayloadJson = $Payload | ConvertTo-Json -Compress -Depth 5
+$PayloadBase64 = [Convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes($PayloadJson))
+
+$NodeCode = @"
+const fs = require("fs");
+const path = require("path");
+const XLSX = require("xlsx");
+const { loadImage } = require("skia-canvas");
+const payload = JSON.parse(Buffer.from("$PayloadBase64", "base64").toString("utf8"));
+const { createPlugin } = require("./src/modules/qqbot/plugins/bangdream/src");
+
+const cases = [
+  { name: "song-search-detail", operationKey: "bangdream.song.search", text: "136", expectedImageCount: 1 },
+  { name: "song-search-list", operationKey: "bangdream.song.search", text: "FIRE BIRD", expectedImageCount: 1 },
+  { name: "song-chart", operationKey: "bangdream.song.chart", text: "136 expert", expectedImageCount: 1 },
+  { name: "song-random", operationKey: "bangdream.song.random", text: "FIRE BIRD", expectedImageCount: 1 },
+  { name: "song-meta", operationKey: "bangdream.song.meta", text: "cn", expectedImageCount: 1 },
+  { name: "card-search-detail", operationKey: "bangdream.card.search", text: "472", expectedImageCount: 1 },
+  { name: "card-search-list", operationKey: "bangdream.card.search", text: "香澄", expectedImageCount: 1 },
+  { name: "card-illustration", operationKey: "bangdream.card.illustration", text: "472", expectedImageCountMin: 1 },
+  { name: "character-search-detail", operationKey: "bangdream.character.search", text: "1", expectedImageCount: 1 },
+  { name: "character-search-list", operationKey: "bangdream.character.search", text: "香澄", expectedImageCount: 1 },
+  { name: "event-search-detail", operationKey: "bangdream.event.search", text: "50", expectedImageCount: 1 },
+  { name: "event-search-list", operationKey: "bangdream.event.search", text: "summer", expectedImageCount: 1 },
+  { name: "event-stage", operationKey: "bangdream.event.stage", text: "310 cn -m", expectedImageCount: 5 },
+  { name: "player-search", operationKey: "bangdream.player.search", text: "26591455 jp", expectedImageCount: 1, external: true },
+  { name: "gacha-search", operationKey: "bangdream.gacha.search", text: "259", expectedImageCount: 1 },
+  { name: "gacha-simulate", operationKey: "bangdream.gacha.simulate", text: "10 259", expectedImageCount: 1 },
+  { name: "cutoff-detail", operationKey: "bangdream.cutoff.detail", text: "ycx 1000 50 cn", expectedImageCount: 1 },
+  { name: "cutoff-detail-top10", operationKey: "bangdream.cutoff.detail", text: "ycx 10 100 cn", expectedImageCount: 1 },
+  { name: "cutoff-all", operationKey: "bangdream.cutoff.all", text: "50 cn", expectedImageCount: 1 },
+  { name: "cutoff-recent", operationKey: "bangdream.cutoff.recent", text: "1000 50 cn", expectedImageCount: 1 },
+];
+
+function createHttpError(message, statusCode) {
+  const error = new Error(message);
+  error.statusCode = statusCode;
+  error.response = { status: statusCode };
+  return error;
+}
+
+async function fetchWithTimeout(url, options = {}) {
+  const controller = new AbortController();
+  const timeoutMs = options.timeoutMs || 30000;
+  const timer = setTimeout(() => controller.abort(), timeoutMs);
+  try {
+    return await fetch(url, {
+      headers: options.headers,
+      signal: controller.signal,
+    });
+  } finally {
+    clearTimeout(timer);
+  }
+}
+
+function readJsonFile(filePath) {
+  return JSON.parse(fs.readFileSync(filePath, "utf8"));
+}
+
+function readExcelRows(filePath) {
+  const workbook = XLSX.readFile(filePath);
+  const sheetName = workbook.SheetNames[0];
+  return XLSX.utils.sheet_to_json(workbook.Sheets[sheetName]);
+}
+
+async function requestBuffer(url, options) {
+  const response = await fetchWithTimeout(url, options);
+  const body = Buffer.from(await response.arrayBuffer());
+  if (!response.ok) {
+    throw createHttpError("BangDream resource request failed: " + response.status, response.status);
+  }
+  return { body, statusCode: response.status };
+}
+
+async function requestJson(url, options) {
+  const response = await fetchWithTimeout(url, options);
+  const text = await response.text();
+  if (!response.ok) {
+    throw createHttpError("BangDream JSON request failed: " + response.status, response.status);
+  }
+  return { body: JSON.parse(text), statusCode: response.status };
+}
+
+function safeName(name) {
+  return name.replace(/[^a-zA-Z0-9._-]+/g, "-");
+}
+
+async function writeCaseImages(testCase, result) {
+  const matches = [...result.replyText.matchAll(/base64:\/\/([A-Za-z0-9+/=]+)/g)];
+  if (matches.length === 0) throw new Error(testCase.name + ": no CQ image payload");
+  if (testCase.expectedImageCount && matches.length !== testCase.expectedImageCount) {
+    throw new Error(testCase.name + ": expected imageCount=" + testCase.expectedImageCount + ", got " + matches.length);
+  }
+  if (testCase.expectedImageCountMin && matches.length < testCase.expectedImageCountMin) {
+    throw new Error(testCase.name + ": expected imageCount>=" + testCase.expectedImageCountMin + ", got " + matches.length);
+  }
+
+  const files = [];
+  for (let index = 0; index < matches.length; index++) {
+    const output = path.join(payload.outDir, safeName(testCase.name) + (index === 0 ? "" : "-" + (index + 1)) + ".jpg");
+    const buffer = Buffer.from(matches[index][1], "base64");
+    fs.writeFileSync(output, buffer);
+    const image = await loadImage(output);
+    files.push({
+      bytes: buffer.length,
+      height: image.height,
+      out: output,
+      width: image.width,
+    });
+  }
+  return files;
+}
+
+(async () => {
+  fs.mkdirSync(payload.outDir, { recursive: true });
+  const manifest = readJsonFile(path.join(process.cwd(), "src/modules/qqbot/plugins/bangdream/plugin.json"));
+  const operations = manifest.operations.map((operation) => ({
+    handlerName: operation.handlerName,
+    key: operation.key,
+  }));
+  const plugin = createPlugin({
+    io: {
+      getConfig: (key) => process.env[key],
+      readAssetFile: async (filePath) => fs.promises.readFile(filePath),
+      readExcelRows: async (filePath) => readExcelRows(filePath),
+      readJsonFile: async (filePath) => readJsonFile(filePath),
+      readJsonFileSync: (filePath) => readJsonFile(filePath),
+      requestArrayBuffer: requestBuffer,
+      requestJson,
+      sleep: async (ms) => new Promise((resolve) => setTimeout(resolve, ms)),
+      writeJsonFile: async (filePath, data) => {
+        fs.mkdirSync(path.dirname(filePath), { recursive: true });
+        fs.writeFileSync(filePath, JSON.stringify(data));
+      },
+    },
+    normalizeError: (error) => String(error?.message || error || "BangDream command failed"),
+    operations,
+  });
+  await plugin.activate();
+
+  const summaries = [];
+  const executedKeys = new Set();
+  for (const testCase of cases) {
+    if (testCase.external && payload.skipExternalPlayer) {
+      summaries.push({
+        name: testCase.name,
+        operationKey: testCase.operationKey,
+        skipped: true,
+        reason: "external-player",
+      });
+      continue;
+    }
+
+    const startedAt = Date.now();
+    const result = await plugin.executeOperation(testCase.operationKey, {
+      compress: true,
+      displayedServerList: "",
+      text: testCase.text,
+    });
+    const files = await writeCaseImages(testCase, result);
+    executedKeys.add(testCase.operationKey);
+    summaries.push({
+      durationMs: Date.now() - startedAt,
+      files,
+      imageCount: result.imageCount,
+      name: testCase.name,
+      operationKey: testCase.operationKey,
+      query: result.query,
+    });
+    process.stdout.write("[matrix] " + testCase.name + " imageCount=" + result.imageCount + " first=" + files[0].width + "x" + files[0].height + "\n");
+  }
+
+  const manifestKeys = manifest.operations.map((operation) => operation.key).sort();
+  const missingKeys = manifestKeys.filter((key) => !cases.some((item) => item.operationKey === key));
+  if (missingKeys.length > 0) {
+    throw new Error("Smoke matrix missing operation keys: " + missingKeys.join(", "));
+  }
+
+  const summary = {
+    caseCount: cases.length,
+    executedOperationKeys: [...executedKeys].sort(),
+    manifestOperationKeys: manifestKeys,
+    outDir: payload.outDir,
+    skipped: summaries.filter((item) => item.skipped),
+    summaries,
+  };
+  const summaryFile = path.join(payload.outDir, "matrix-summary.json");
+  fs.writeFileSync(summaryFile, JSON.stringify(summary, null, 2));
+  process.stdout.write(JSON.stringify({
+    caseCount: summary.caseCount,
+    executedOperationKeyCount: summary.executedOperationKeys.length,
+    skippedCount: summary.skipped.length,
+    summaryFile,
+  }, null, 2) + "\n");
+})().catch((error) => {
+  process.stderr.write(String(error?.stack || error) + "\n");
+  process.exit(1);
+});
+"@
+$NodeCodeBase64 = [Convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes($NodeCode))
+$EvalCode = "eval(Buffer.from('$NodeCodeBase64','base64').toString('utf8'))"
+
+$env:TS_NODE_TRANSPILE_ONLY = "true"
+$Process = Start-Process `
+  -FilePath "node" `
+  -ArgumentList @("-r", "ts-node/register", "-r", "tsconfig-paths/register", "-e", $EvalCode) `
+  -WorkingDirectory $ProjectRoot `
+  -RedirectStandardOutput $StdoutLog `
+  -RedirectStandardError $StderrLog `
+  -PassThru `
+  -WindowStyle Hidden
+
+$Deadline = (Get-Date).AddSeconds($TimeoutSeconds)
+while (-not $Process.HasExited) {
+  if ((Get-Date) -ge $Deadline) {
+    Stop-Process -Id $Process.Id -Force -ErrorAction SilentlyContinue
+    Write-Output "BangDream smoke matrix timed out and process $($Process.Id) was killed."
+    if (Test-Path $StdoutLog) { Get-Content $StdoutLog }
+    if (Test-Path $StderrLog) { Get-Content $StderrLog }
+    exit 124
+  }
+  Start-Sleep -Milliseconds 500
+  $Process.Refresh()
+}
+
+if (Test-Path $StdoutLog) { Get-Content $StdoutLog }
+if (Test-Path $StderrLog) { Get-Content $StderrLog }
+if (-not (Test-Path $SummaryFile)) {
+  Write-Output "BangDream smoke matrix did not produce a summary file."
+  exit 1
+}
+exit $Process.ExitCode
diff --git a/src/modules/qqbot/core/contract/qqbot.types.ts b/src/modules/qqbot/core/contract/qqbot.types.ts
index 48be41f..3972e16 100644
--- a/src/modules/qqbot/core/contract/qqbot.types.ts
+++ b/src/modules/qqbot/core/contract/qqbot.types.ts
@@ -167,6 +167,7 @@ export type QqbotPluginOperation<Input = any, Output = any> = {
 };
 
 export type QqbotIntegrationPlugin = {
+  activate?: () => Promise<unknown> | unknown;
   description?: string;
   healthCheck?: () => Promise<QqbotPluginHealth>;
   key: string;
diff --git a/src/modules/qqbot/plugin-platform/application/registry/qqbot-plugin-registry.service.ts b/src/modules/qqbot/plugin-platform/application/registry/qqbot-plugin-registry.service.ts
index 3756175..19adbf0 100644
--- a/src/modules/qqbot/plugin-platform/application/registry/qqbot-plugin-registry.service.ts
+++ b/src/modules/qqbot/plugin-platform/application/registry/qqbot-plugin-registry.service.ts
@@ -35,6 +35,7 @@ export class QqbotPluginRegistryService implements OnModuleInit {
 
   async onModuleInit() {
     for (const plugin of this.builtinPluginLoader?.loadCommandPlugins() || []) {
+      await plugin.activate?.();
       this.register(plugin);
     }
     await this.hydrateInactivePluginKeys();
diff --git a/src/modules/qqbot/plugins/bangdream/src/application/render-assets.ts b/src/modules/qqbot/plugins/bangdream/src/application/render-assets.ts
new file mode 100644
index 0000000..ee8b9cb
--- /dev/null
+++ b/src/modules/qqbot/plugins/bangdream/src/application/render-assets.ts
@@ -0,0 +1,19 @@
+import { preloadBangDreamCardArtAssets } from '@/modules/qqbot/plugins/bangdream/src/domain/card/card-art.renderer';
+import { preloadBangDreamCardRarityAssets } from '@/modules/qqbot/plugins/bangdream/src/domain/card/card-rarity.renderer';
+import { preloadBangDreamCardSkillTextAssets } from '@/modules/qqbot/plugins/bangdream/src/domain/card/card-skill-text.renderer';
+import { preloadBangDreamPlayerAssets } from '@/modules/qqbot/plugins/bangdream/src/domain/player/player-detail.renderer';
+import { preloadBangDreamBackgroundAssets } from '@/modules/qqbot/plugins/bangdream/src/theme/canvas-background';
+import { preloadBangDreamOutputAssets } from '@/modules/qqbot/plugins/bangdream/src/theme/canvas-output';
+import { preloadBangDreamTitleAssets } from '@/modules/qqbot/plugins/bangdream/src/theme/title.renderer';
+
+export async function preloadBangDreamRenderAssets() {
+  await Promise.all([
+    preloadBangDreamBackgroundAssets(),
+    preloadBangDreamCardArtAssets(),
+    preloadBangDreamCardRarityAssets(),
+    preloadBangDreamCardSkillTextAssets(),
+    preloadBangDreamOutputAssets(),
+    preloadBangDreamPlayerAssets(),
+    preloadBangDreamTitleAssets(),
+  ]);
+}
diff --git a/src/modules/qqbot/plugins/bangdream/src/domain/card/card-art.renderer.ts b/src/modules/qqbot/plugins/bangdream/src/domain/card/card-art.renderer.ts
index a7d8003..19c111c 100644
--- a/src/modules/qqbot/plugins/bangdream/src/domain/card/card-art.renderer.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/domain/card/card-art.renderer.ts
@@ -17,34 +17,46 @@ import { cardArtResourceRepository } from '@/modules/qqbot/plugins/bangdream/src
 const cardTypeIconList: { [type: string]: Image } = {};
 const starList: { [type: string]: Image } = {};
 let limitBreakIcon: Image;
+let cardArtAssetsPreload: Promise<void> | undefined;
 
-/**
- * 在图片布局层中加载图片Once。
- */
-async function loadImageOnce() {
-  cardTypeIconList.limited = await loadImageFromPath(
-    getBangDreamAssetPath('cardLimited'),
-  );
-  cardTypeIconList.dreamfes = await loadImageFromPath(
-    getBangDreamAssetPath('cardDreamfes'),
-  );
-  cardTypeIconList.kirafes = await loadImageFromPath(
-    getBangDreamAssetPath('cardKirafes'),
-  );
-  cardTypeIconList.birthday = await loadImageFromPath(
-    getBangDreamAssetPath('cardBirthday'),
-  );
-  starList.normal = await loadImageFromPath(getBangDreamAssetPath('cardStar'));
-  starList.trained = await loadImageFromPath(
-    getBangDreamAssetPath('cardStarTrained'),
-  );
-  limitBreakIcon = await loadImageFromPath(
-    getBangDreamAssetPath('cardLimitBreakRank'),
-  );
+export async function preloadBangDreamCardArtAssets() {
+  if (!cardArtAssetsPreload) {
+    cardArtAssetsPreload = Promise.all([
+      loadImageFromPath(getBangDreamAssetPath('cardLimited')),
+      loadImageFromPath(getBangDreamAssetPath('cardDreamfes')),
+      loadImageFromPath(getBangDreamAssetPath('cardKirafes')),
+      loadImageFromPath(getBangDreamAssetPath('cardBirthday')),
+      loadImageFromPath(getBangDreamAssetPath('cardStar')),
+      loadImageFromPath(getBangDreamAssetPath('cardStarTrained')),
+      loadImageFromPath(getBangDreamAssetPath('cardLimitBreakRank')),
+    ])
+      .then(
+        ([
+          limited,
+          dreamfes,
+          kirafes,
+          birthday,
+          normalStar,
+          trainedStar,
+          limitBreak,
+        ]) => {
+          cardTypeIconList.limited = limited;
+          cardTypeIconList.dreamfes = dreamfes;
+          cardTypeIconList.kirafes = kirafes;
+          cardTypeIconList.birthday = birthday;
+          starList.normal = normalStar;
+          starList.trained = trainedStar;
+          limitBreakIcon = limitBreak;
+        },
+      )
+      .catch((error) => {
+        cardArtAssetsPreload = undefined;
+        throw error;
+      });
+  }
+  await cardArtAssetsPreload;
 }
 
-loadImageOnce();
-
 //根据稀有度与属性，获得图标框
 /**
  * 在图片布局层中获取卡牌图标Frame。
@@ -113,6 +125,7 @@ export async function drawCardIcon({
   cardTypeVisible = true,
   skillLevel,
 }: DrawCardIconOptions): Promise<Canvas> {
+  await preloadBangDreamCardArtAssets();
   trainingStatus = card.ableToTraining(trainingStatus);
   illustrationTrainingStatus ??= trainingStatus;
   const spec = BANGDREAM_CARD_ART_SPEC.icon;
@@ -248,6 +261,7 @@ export async function drawCardIllustration({
   trainingStatus,
   isList = false,
 }: DrawCardIllustrationOptions): Promise<Canvas> {
+  await preloadBangDreamCardArtAssets();
   trainingStatus = card.ableToTraining(trainingStatus);
   const spec = BANGDREAM_CARD_ART_SPEC.illustration;
   const cardIllustrationImage =
diff --git a/src/modules/qqbot/plugins/bangdream/src/domain/card/card-prefix.renderer.ts b/src/modules/qqbot/plugins/bangdream/src/domain/card/card-prefix.renderer.ts
index df68b7c..66b64e2 100644
--- a/src/modules/qqbot/plugins/bangdream/src/domain/card/card-prefix.renderer.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/domain/card/card-prefix.renderer.ts
@@ -14,19 +14,12 @@ import {
   getCardPrefixBandLogoLayout,
 } from '@/modules/qqbot/plugins/bangdream/src/domain/card/card-prefix.layout';
 
-let prefixBG: Canvas;
-/**
- * 在图片布局层中加载图片Once。
- */
-async function loadImageOnce() {
-  prefixBG = drawRoundedRect({
-    width: BANGDREAM_CARD_PREFIX_SPEC.canvas.width,
-    height: BANGDREAM_CARD_PREFIX_SPEC.canvas.height,
-    color: BANGDREAM_CARD_PREFIX_SPEC.background.color,
-    radius: [...BANGDREAM_CARD_PREFIX_SPEC.background.radius],
-  });
-}
-loadImageOnce();
+const prefixBG: Canvas = drawRoundedRect({
+  width: BANGDREAM_CARD_PREFIX_SPEC.canvas.width,
+  height: BANGDREAM_CARD_PREFIX_SPEC.canvas.height,
+  color: BANGDREAM_CARD_PREFIX_SPEC.background.color,
+  radius: [...BANGDREAM_CARD_PREFIX_SPEC.background.radius],
+});
 
 /**
  * 在图片布局层中绘制卡牌PrefixIn列表。
diff --git a/src/modules/qqbot/plugins/bangdream/src/domain/card/card-rarity.renderer.ts b/src/modules/qqbot/plugins/bangdream/src/domain/card/card-rarity.renderer.ts
index 1770ce8..2aade61 100644
--- a/src/modules/qqbot/plugins/bangdream/src/domain/card/card-rarity.renderer.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/domain/card/card-rarity.renderer.ts
@@ -15,16 +15,25 @@ interface RarityInListOptions {
 }
 
 export const starList: { [type: string]: Image } = {};
-/**
- * 在图片布局层中加载图片Once。
- */
-async function loadImageOnce() {
-  starList.normal = await loadImageFromPath(getBangDreamAssetPath('cardStar'));
-  starList.trained = await loadImageFromPath(
-    getBangDreamAssetPath('cardStarTrained'),
-  );
+let rarityAssetsPreload: Promise<void> | undefined;
+
+export async function preloadBangDreamCardRarityAssets() {
+  if (!rarityAssetsPreload) {
+    rarityAssetsPreload = Promise.all([
+      loadImageFromPath(getBangDreamAssetPath('cardStar')),
+      loadImageFromPath(getBangDreamAssetPath('cardStarTrained')),
+    ])
+      .then(([normal, trained]) => {
+        starList.normal = normal;
+        starList.trained = trained;
+      })
+      .catch((error) => {
+        rarityAssetsPreload = undefined;
+        throw error;
+      });
+  }
+  await rarityAssetsPreload;
 }
-loadImageOnce();
 
 /**
  * 在图片布局层中绘制RarityIn列表。
@@ -38,6 +47,7 @@ export async function drawRarityInList({
   trainingStatus = true,
   text,
 }: RarityInListOptions): Promise<Canvas> {
+  await preloadBangDreamCardRarityAssets();
   const content: Array<string | Image | Canvas> = [];
   let star: Image;
   if (shouldUseTrainedRarityStar(rarity, trainingStatus)) {
diff --git a/src/modules/qqbot/plugins/bangdream/src/domain/card/card-skill-text.renderer.ts b/src/modules/qqbot/plugins/bangdream/src/domain/card/card-skill-text.renderer.ts
index 668dab1..5ee2fc8 100644
--- a/src/modules/qqbot/plugins/bangdream/src/domain/card/card-skill-text.renderer.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/domain/card/card-skill-text.renderer.ts
@@ -11,19 +11,27 @@ import {
 } from '@/modules/qqbot/plugins/bangdream/src/domain/card/card-skill-text.layout';
 
 const skillIcon: Partial<Record<BangDreamSkillIconKey, Image>> = {};
-/**
- * 在图片布局层中加载图片Once。
- */
-async function loadImageOnce() {
-  skillIcon.life = await loadImageFromPath(getBangDreamAssetPath('skillLife'));
-  skillIcon.judge = await loadImageFromPath(
-    getBangDreamAssetPath('skillJudge'),
-  );
-  skillIcon.damage = await loadImageFromPath(
-    getBangDreamAssetPath('skillDamage'),
-  );
+let skillTextAssetsPreload: Promise<void> | undefined;
+
+export async function preloadBangDreamCardSkillTextAssets() {
+  if (!skillTextAssetsPreload) {
+    skillTextAssetsPreload = Promise.all([
+      loadImageFromPath(getBangDreamAssetPath('skillLife')),
+      loadImageFromPath(getBangDreamAssetPath('skillJudge')),
+      loadImageFromPath(getBangDreamAssetPath('skillDamage')),
+    ])
+      .then(([life, judge, damage]) => {
+        skillIcon.life = life;
+        skillIcon.judge = judge;
+        skillIcon.damage = damage;
+      })
+      .catch((error) => {
+        skillTextAssetsPreload = undefined;
+        throw error;
+      });
+  }
+  await skillTextAssetsPreload;
 }
-loadImageOnce();
 
 //卡牌Icon右下角的技能描述图标
 /**
@@ -33,6 +41,7 @@ loadImageOnce();
  * @returns 异步处理结果。
  */
 export async function drawCardIconSkill(skill: Skill): Promise<Canvas> {
+  await preloadBangDreamCardSkillTextAssets();
   const content = createSkillTextFragments({
     effectTypes: skill.getEffectTypes(),
     scoreUpMaxValue: skill.getScoreUpMaxValue(),
diff --git a/src/modules/qqbot/plugins/bangdream/src/domain/player/player-detail.renderer.ts b/src/modules/qqbot/plugins/bangdream/src/domain/player/player-detail.renderer.ts
index 002f795..3a1b632 100644
--- a/src/modules/qqbot/plugins/bangdream/src/domain/player/player-detail.renderer.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/domain/player/player-detail.renderer.ts
@@ -25,15 +25,23 @@ import { loadImageFromPath } from '@/modules/qqbot/plugins/bangdream/src/theme/c
 import { playerRepository } from '@/modules/qqbot/plugins/bangdream/src/domain/player/player.repository';
 
 let BGDefaultImage: Image;
-/**
- * 在QQBot 图片视图层中加载图片Once。
- */
-async function loadImageOnce() {
-  BGDefaultImage = await loadImageFromPath(
-    path.join(assetsRootPath, '/BG/common.png'),
-  );
+let playerAssetsPreload: Promise<void> | undefined;
+
+export async function preloadBangDreamPlayerAssets() {
+  if (!playerAssetsPreload) {
+    playerAssetsPreload = loadImageFromPath(
+      path.join(assetsRootPath, '/BG/common.png'),
+    )
+      .then((image) => {
+        BGDefaultImage = image;
+      })
+      .catch((error) => {
+        playerAssetsPreload = undefined;
+        throw error;
+      });
+  }
+  await playerAssetsPreload;
 }
-loadImageOnce();
 
 /**
  * 在QQBot 图片视图层中绘制玩家详情。
@@ -50,6 +58,7 @@ export async function drawPlayerDetail(
   useEasyBG: boolean,
   compress: boolean,
 ): Promise<Array<Buffer | string>> {
+  await preloadBangDreamPlayerAssets();
   const result = [];
   let player = playerRepository.create(playerId, mainServer);
   //不使用缓存查询
diff --git a/src/modules/qqbot/plugins/bangdream/src/domain/song/song-list.renderer.ts b/src/modules/qqbot/plugins/bangdream/src/domain/song/song-list.renderer.ts
index eb2d9fd..f71b5e0 100644
--- a/src/modules/qqbot/plugins/bangdream/src/domain/song/song-list.renderer.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/domain/song/song-list.renderer.ts
@@ -40,7 +40,7 @@ export async function drawSongInList(
 ): Promise<Canvas> {
   const server = getServerByPriority(song.publishedAt, displayedServerList);
   const songImage = resizeImage({
-    image: await song.getSongJacketImage(),
+    image: await song.getSongJacketImage(displayedServerList),
     widthMax: BANGDREAM_SONG_LIST_SPEC.item.jacketSourceWidthMax,
     heightMax: BANGDREAM_SONG_LIST_SPEC.item.jacketSourceHeightMax,
   });
diff --git a/src/modules/qqbot/plugins/bangdream/src/index.ts b/src/modules/qqbot/plugins/bangdream/src/index.ts
index e3b2efe..eeede24 100644
--- a/src/modules/qqbot/plugins/bangdream/src/index.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/index.ts
@@ -22,6 +22,7 @@ import type {
   BangDreamOperationKey,
 } from './domain/common/bangdream.types';
 import { waitForBangDreamCatalogReady } from './application/catalog/bangdream-catalog-cache';
+import { preloadBangDreamRenderAssets } from './application/render-assets';
 
 type BangDreamPluginRuntimeOptions = BangDreamCommandContextOptions & {
   description?: string;
@@ -77,7 +78,12 @@ export function createPlugin(options: BangDreamPluginRuntimeOptions) {
     });
 
   return {
-    activate: () => context.refreshDictionaryCache(),
+    activate: async () => {
+      await Promise.all([
+        context.refreshDictionaryCache(),
+        preloadBangDreamRenderAssets(),
+      ]);
+    },
     description: options.description,
     dispose: async () => undefined,
     executeOperation,
diff --git a/src/modules/qqbot/plugins/bangdream/src/theme/canvas-background.ts b/src/modules/qqbot/plugins/bangdream/src/theme/canvas-background.ts
index cf65e82..166e58c 100644
--- a/src/modules/qqbot/plugins/bangdream/src/theme/canvas-background.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/theme/canvas-background.ts
@@ -1,7 +1,12 @@
 import { createBlurredTrianglePattern } from '@/modules/qqbot/plugins/bangdream/src/theme/canvas-background-triangle';
 import { scatterImages } from '@/modules/qqbot/plugins/bangdream/src/theme/canvas-background-scatter';
 import { drawTextOnCanvas } from '@/modules/qqbot/plugins/bangdream/src/theme/canvas-background-text';
-import { loadImage, Image, Canvas } from 'skia-canvas';
+import {
+  loadImage,
+  Image,
+  Canvas,
+  CanvasRenderingContext2D,
+} from 'skia-canvas';
 import { loadImageFromPath } from '@/modules/qqbot/plugins/bangdream/src/theme/canvas-image';
 import { getBangDreamAssetPath } from '@/modules/qqbot/plugins/bangdream/src/theme/asset-manifest';
 import { BANGDREAM_RENDER_THEME } from '@/modules/qqbot/plugins/bangdream/src/theme/render-theme';
@@ -13,6 +18,17 @@ interface BackgroundOptions {
   height: number;
 }
 
+interface TextureLike {
+  height: number;
+  width: number;
+}
+
+interface TextureTileOptions {
+  ratio: number;
+  x: number;
+  y: number;
+}
+
 // 将图片等比例缩放并重复铺满整个画布,并且增加亮度
 /**
  * 在底层绘图工具层中处理spreadBackground图片。
@@ -114,17 +130,27 @@ function getScaledDimensions(
 const star: Image[] = [];
 
 let defaultBGTexture: Image;
-/**
- * 在底层绘图工具层中加载图片Once。
- */
-async function loadImageOnce() {
-  star.push(await loadImageFromPath(getBangDreamAssetPath('backgroundStar1')));
-  star.push(await loadImageFromPath(getBangDreamAssetPath('backgroundStar2')));
-  defaultBGTexture = await loadImageFromPath(
-    getBangDreamAssetPath('backgroundObjectBig'),
-  );
+let backgroundAssetsPreload: Promise<void> | undefined;
+
+export async function preloadBangDreamBackgroundAssets() {
+  if (!backgroundAssetsPreload) {
+    backgroundAssetsPreload = Promise.all([
+      loadImageFromPath(getBangDreamAssetPath('backgroundStar1')),
+      loadImageFromPath(getBangDreamAssetPath('backgroundStar2')),
+      loadImageFromPath(getBangDreamAssetPath('backgroundObjectBig')),
+    ])
+      .then(([star1, star2, texture]) => {
+        star.length = 0;
+        star.push(star1, star2);
+        defaultBGTexture = texture;
+      })
+      .catch((error) => {
+        backgroundAssetsPreload = undefined;
+        throw error;
+      });
+  }
+  await backgroundAssetsPreload;
 }
-loadImageOnce();
 
 /**
  * 在底层绘图工具层中创建简易Background。
@@ -132,6 +158,7 @@ loadImageOnce();
  * @param options1 - options1参数。
  */
 export async function createEasyBackground({ width, height }) {
+  await preloadBangDreamBackgroundAssets();
   const bgColor = BANGDREAM_RENDER_THEME.color.backgroundEasy;
   const canvas: Canvas = new Canvas(width, height);
   const ctx = canvas.getContext('2d');
@@ -144,13 +171,11 @@ export async function createEasyBackground({ width, height }) {
   while (y < height) {
     x = 0 - Math.random() * defaultBGTexture.width * ratio;
     while (x < width) {
-      ctx.drawImage(
-        defaultBGTexture,
+      drawScaledTextureTile(ctx, defaultBGTexture, {
+        ratio,
         x,
         y,
-        defaultBGTexture.width * ratio,
-        defaultBGTexture.height * ratio,
-      );
+      });
       x += defaultBGTexture.width * ratio;
     }
     y += defaultBGTexture.height * ratio;
@@ -158,6 +183,22 @@ export async function createEasyBackground({ width, height }) {
   return canvas;
 }
 
+/**
+ * 使用坐标变换绘制缩放纹理，保持 Tsugu 的比例与偏移，同时避开 skia-canvas
+ * scaled drawImage 重载在完整 Nest 进程里的 native 内存峰值。
+ */
+export function drawScaledTextureTile(
+  ctx: CanvasRenderingContext2D,
+  texture: TextureLike,
+  { ratio, x, y }: TextureTileOptions,
+) {
+  ctx.save();
+  ctx.translate(x, y);
+  ctx.scale(ratio, ratio);
+  ctx.drawImage(texture as Image | Canvas, 0, 0);
+  ctx.restore();
+}
+
 /**
  * 使用业务图片生成轻量背景。
  *
@@ -197,6 +238,7 @@ export async function createBackground({
   width,
   height,
 }: BackgroundOptions): Promise<Canvas> {
+  await preloadBangDreamBackgroundAssets();
   //将图片铺满画面，并且增加20亮度
   const backgroundBuffer = await spreadBackgroundImage(
     image,
diff --git a/src/modules/qqbot/plugins/bangdream/src/theme/canvas-output.ts b/src/modules/qqbot/plugins/bangdream/src/theme/canvas-output.ts
index 2d58212..77a2d86 100644
--- a/src/modules/qqbot/plugins/bangdream/src/theme/canvas-output.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/theme/canvas-output.ts
@@ -8,15 +8,23 @@ import { loadImageFromPath } from '@/modules/qqbot/plugins/bangdream/src/theme/c
 import { getBangDreamAssetPath } from '@/modules/qqbot/plugins/bangdream/src/theme/asset-manifest';
 
 let BGDefaultImage: Image;
-/**
- * 在底层绘图工具层中加载图片Once。
- */
-async function loadImageOnce() {
-  BGDefaultImage = await loadImageFromPath(
-    getBangDreamAssetPath('backgroundLive'),
-  );
+let outputAssetsPreload: Promise<void> | undefined;
+
+export async function preloadBangDreamOutputAssets() {
+  if (!outputAssetsPreload) {
+    outputAssetsPreload = loadImageFromPath(
+      getBangDreamAssetPath('backgroundLive'),
+    )
+      .then((image) => {
+        BGDefaultImage = image;
+      })
+      .catch((error) => {
+        outputAssetsPreload = undefined;
+        throw error;
+      });
+  }
+  await outputAssetsPreload;
 }
-loadImageOnce();
 
 export interface OutputFinalOptions {
   startWithSpace?: boolean;
@@ -43,8 +51,10 @@ export const outputFinalCanv = async function ({
   useEasyBG = true,
   useImageBG = false,
   text = 'BanG Dream!',
-  BGimage = BGDefaultImage,
+  BGimage,
 }: OutputFinalOptions): Promise<Canvas> {
+  await preloadBangDreamOutputAssets();
+  const backgroundImage = BGimage ?? BGDefaultImage;
   let allH = 30;
   if (startWithSpace) {
     allH += 50;
@@ -72,7 +82,7 @@ export const outputFinalCanv = async function ({
   } else if (useImageBG) {
     ctx.drawImage(
       await createImageBackground({
-        image: BGimage,
+        image: backgroundImage,
         width: maxW,
         height: allH,
       }),
@@ -83,7 +93,7 @@ export const outputFinalCanv = async function ({
     ctx.drawImage(
       await createBackground({
         text,
-        image: BGimage,
+        image: backgroundImage,
         width: maxW,
         height: allH,
       }),
diff --git a/src/modules/qqbot/plugins/bangdream/src/theme/title.renderer.ts b/src/modules/qqbot/plugins/bangdream/src/theme/title.renderer.ts
index 5a9e38e..79bc653 100644
--- a/src/modules/qqbot/plugins/bangdream/src/theme/title.renderer.ts
+++ b/src/modules/qqbot/plugins/bangdream/src/theme/title.renderer.ts
@@ -9,13 +9,21 @@ import {
 } from '@/modules/qqbot/plugins/bangdream/src/theme/title.layout';
 
 let titleImage: Image;
-/**
- * 在图片布局层中加载图片Once。
- */
-async function loadImageOnce() {
-  titleImage = await loadImageFromPath(getBangDreamAssetPath('title'));
+let titleImagePreload: Promise<void> | undefined;
+
+export async function preloadBangDreamTitleAssets() {
+  if (!titleImagePreload) {
+    titleImagePreload = loadImageFromPath(getBangDreamAssetPath('title'))
+      .then((image) => {
+        titleImage = image;
+      })
+      .catch((error) => {
+        titleImagePreload = undefined;
+        throw error;
+      });
+  }
+  await titleImagePreload;
 }
-loadImageOnce();
 
 /**
  * 在图片布局层中绘制标题。
@@ -25,6 +33,9 @@ loadImageOnce();
  * @returns 渲染或资源结果。
  */
 export function drawTitle(title1: string, title2: string): Canvas {
+  if (!titleImage) {
+    throw new Error('BangDream 标题资源未初始化');
+  }
   const canvas = new Canvas(titleImage.width, titleImage.height);
   const ctx = canvas.getContext('2d');
   ctx.drawImage(
diff --git a/test/modules/qqbot/plugin-platform/plugin-lifecycle-runtime.spec.ts b/test/modules/qqbot/plugin-platform/plugin-lifecycle-runtime.spec.ts
index e465130..b9499b2 100644
--- a/test/modules/qqbot/plugin-platform/plugin-lifecycle-runtime.spec.ts
+++ b/test/modules/qqbot/plugin-platform/plugin-lifecycle-runtime.spec.ts
@@ -280,7 +280,7 @@ describe('QQBot plugin platform lifecycle runtime contract', () => {
     const commandRegistry = new QqbotPluginRegistryService({
       loadCommandPlugins: () => [commandPlugin],
     } as any);
-    commandRegistry.onModuleInit();
+    await commandRegistry.onModuleInit();
 
     await expect(
       commandRegistry.execute('demo-plugin', 'demo.echo', {}, {}),
diff --git a/test/modules/qqbot/plugin-platform/plugin-registry-timeout.spec.ts b/test/modules/qqbot/plugin-platform/plugin-registry-timeout.spec.ts
index b592cc9..606e248 100644
--- a/test/modules/qqbot/plugin-platform/plugin-registry-timeout.spec.ts
+++ b/test/modules/qqbot/plugin-platform/plugin-registry-timeout.spec.ts
@@ -21,7 +21,7 @@ describe('QQBot plugin registry operation timeout', () => {
         },
       ],
     } as any);
-    commandRegistry.onModuleInit();
+    await commandRegistry.onModuleInit();
 
     await expect(
       Promise.race([
diff --git a/test/modules/qqbot/plugins/plugin-registry-compat.spec.ts b/test/modules/qqbot/plugins/plugin-registry-compat.spec.ts
index 2bac09e..95df8f6 100644
--- a/test/modules/qqbot/plugins/plugin-registry-compat.spec.ts
+++ b/test/modules/qqbot/plugins/plugin-registry-compat.spec.ts
@@ -19,6 +19,24 @@ const createPlugin = (
 });
 
 describe('QQBot plugin registry platform key compatibility', () => {
+  it('activates builtin command plugins before they are registered', async () => {
+    const activate = jest.fn(async () => undefined);
+    const plugin = {
+      ...createPlugin('demo-plugin', []),
+      activate,
+    };
+    const registry = new QqbotPluginRegistryService({
+      loadCommandPlugins: () => [plugin],
+    } as any);
+
+    await registry.onModuleInit();
+
+    expect(activate).toHaveBeenCalledTimes(1);
+    expect(registry.listPlugins().map((item) => item.key)).toEqual([
+      'demo-plugin',
+    ]);
+  });
+
   it('uses platform plugin keys as primary keys while resolving legacy command keys', async () => {
     const bangdream = createPlugin('bangdream', ['bangDream']);
     const ff14Plugin = createPlugin('ff14-market', ['ff14Market']);
diff --git a/test/qqbot/plugins/bangdream/application/bangdream-operation-branch-matrix.spec.ts b/test/qqbot/plugins/bangdream/application/bangdream-operation-branch-matrix.spec.ts
new file mode 100644
index 0000000..73c0d39
--- /dev/null
+++ b/test/qqbot/plugins/bangdream/application/bangdream-operation-branch-matrix.spec.ts
@@ -0,0 +1,630 @@
+import { readFileSync } from 'node:fs';
+import { join } from 'node:path';
+import type {
+  BangDreamCommandInput,
+  BangDreamOperationHandlerName,
+  BangDreamOperationKey,
+} from '@/modules/qqbot/plugins/bangdream/src/domain/common/bangdream.types';
+
+const mockImageBuffer = (name: string) => Buffer.from(`image:${name}`);
+
+const mockFuzzySearch = jest.fn(() => ({ song: [136] }));
+const mockSongCtor = jest.fn().mockImplementation((songId: number) => ({
+  songId,
+}));
+const mockDrawSongDetail = jest.fn(async () => [
+  mockImageBuffer('song-detail'),
+]);
+const mockDrawSongList = jest.fn(async () => [mockImageBuffer('song-list')]);
+const mockDrawSongChart = jest.fn(async () => [
+  mockImageBuffer('song-chart'),
+]);
+const mockDrawSongRandom = jest.fn(async () => [
+  mockImageBuffer('song-random'),
+]);
+const mockDrawSongMetaList = jest.fn(async () => [
+  mockImageBuffer('song-meta'),
+]);
+
+const mockDrawCardDetail = jest.fn(async () => [
+  mockImageBuffer('card-detail'),
+]);
+const mockDrawCardList = jest.fn(async () => [mockImageBuffer('card-list')]);
+const mockCardGetTrainingStatusList = jest.fn(() => [false, true]);
+const mockCardGetCardIllustrationImageBuffer = jest.fn(
+  async (trainingStatus: boolean) =>
+    mockImageBuffer(`card-illustration-${trainingStatus}`),
+);
+const mockCardCtor = jest.fn().mockImplementation((cardId: number) => ({
+  cardId,
+  getCardIllustrationImageBuffer: mockCardGetCardIllustrationImageBuffer,
+  getTrainingStatusList: mockCardGetTrainingStatusList,
+  isExist: true,
+}));
+
+const mockDrawCharacterDetail = jest.fn(async () => [
+  mockImageBuffer('character-detail'),
+]);
+const mockDrawCharacterList = jest.fn(async () => [
+  mockImageBuffer('character-list'),
+]);
+
+const mockGetPresentEvent = jest.fn(() => ({ eventId: 50 }));
+const mockDrawEventDetail = jest.fn(async () => [
+  mockImageBuffer('event-detail'),
+]);
+const mockDrawEventList = jest.fn(async () => [mockImageBuffer('event-list')]);
+const mockDrawEventStage = jest.fn(async () =>
+  Array.from({ length: 5 }, (_, index) =>
+    mockImageBuffer(`event-stage-${index}`),
+  ),
+);
+
+const mockDrawPlayerDetail = jest.fn(async () => [
+  mockImageBuffer('player-detail'),
+]);
+
+const mockDrawGachaDetail = jest.fn(async () => [
+  mockImageBuffer('gacha-detail'),
+]);
+const mockDrawRandomGacha = jest.fn(async () => [
+  mockImageBuffer('gacha-simulate'),
+]);
+const mockGachaCtor = jest.fn().mockImplementation((gachaId: number) => ({
+  gachaId,
+  type: 'normal',
+}));
+const mockGetPresentGachaList = jest.fn(async () => [
+  {
+    gachaId: 300,
+    type: 'normal',
+  },
+]);
+
+const mockDrawCutoffDetail = jest.fn(async () => [
+  mockImageBuffer('cutoff-detail'),
+]);
+const mockDrawCutoffEventTop = jest.fn(async () => [
+  mockImageBuffer('cutoff-event-top'),
+]);
+const mockDrawCutoffAll = jest.fn(async () => [
+  mockImageBuffer('cutoff-all'),
+]);
+const mockDrawCutoffListOfRecentEvent = jest.fn(async () => [
+  mockImageBuffer('cutoff-recent'),
+]);
+
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/search/fuzzy-search',
+  () => ({
+    fuzzySearch: mockFuzzySearch,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/song/song.model',
+  () => ({
+    Song: mockSongCtor,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/song/song-detail.renderer',
+  () => ({
+    drawSongDetail: mockDrawSongDetail,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/song/song-search.renderer',
+  () => ({
+    drawSongList: mockDrawSongList,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/song/song-chart.renderer',
+  () => ({
+    drawSongChart: mockDrawSongChart,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/song/song-random.renderer',
+  () => ({
+    drawSongRandom: mockDrawSongRandom,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/song/song-meta.renderer',
+  () => ({
+    drawSongMetaList: mockDrawSongMetaList,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/card/card-detail.renderer',
+  () => ({
+    drawCardDetail: mockDrawCardDetail,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/card/card-search.renderer',
+  () => ({
+    drawCardList: mockDrawCardList,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/card/card.model',
+  () => ({
+    Card: mockCardCtor,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/character/character-detail.renderer',
+  () => ({
+    drawCharacterDetail: mockDrawCharacterDetail,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/character/character-search.renderer',
+  () => ({
+    drawCharacterList: mockDrawCharacterList,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/event/event.model',
+  () => ({
+    getPresentEvent: mockGetPresentEvent,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/event/event-detail.renderer',
+  () => ({
+    drawEventDetail: mockDrawEventDetail,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/event/event-search.renderer',
+  () => ({
+    drawEventList: mockDrawEventList,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/event/event-stage.renderer',
+  () => ({
+    drawEventStage: mockDrawEventStage,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/player/player-detail.renderer',
+  () => ({
+    drawPlayerDetail: mockDrawPlayerDetail,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/gacha/gacha-detail.renderer',
+  () => ({
+    drawGachaDetail: mockDrawGachaDetail,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/gacha/gacha-simulate.renderer',
+  () => ({
+    drawRandomGacha: mockDrawRandomGacha,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/gacha/gacha.model',
+  () => ({
+    Gacha: mockGachaCtor,
+    getPresentGachaList: mockGetPresentGachaList,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/policy/gacha.policy',
+  () => ({
+    BANGDREAM_GACHA_DEFAULT_SPIN_COUNT: 10,
+    isBirthdayGachaType: jest.fn(() => false),
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/cutoff/cutoff-detail.renderer',
+  () => ({
+    drawCutoffDetail: mockDrawCutoffDetail,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/cutoff/cutoff-event-top.renderer',
+  () => ({
+    drawCutoffEventTop: mockDrawCutoffEventTop,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/cutoff/cutoff-all.renderer',
+  () => ({
+    drawCutoffAll: mockDrawCutoffAll,
+  }),
+);
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/domain/cutoff/cutoff-recent.renderer',
+  () => ({
+    drawCutoffListOfRecentEvent: mockDrawCutoffListOfRecentEvent,
+  }),
+);
+
+type ManifestOperation = {
+  handlerName: BangDreamOperationHandlerName;
+  key: BangDreamOperationKey;
+};
+
+type BranchCase = {
+  assertBranch: () => void;
+  expectedImageCount: number;
+  expectedQuery: string;
+  input: BangDreamCommandInput;
+  key: BangDreamOperationKey;
+  name: string;
+};
+
+const branchCases: BranchCase[] = [
+  {
+    assertBranch: () => expect(mockDrawSongDetail).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '136',
+    input: { text: '136' },
+    key: 'bangdream.song.search',
+    name: 'song.search numeric detail',
+  },
+  {
+    assertBranch: () => expect(mockDrawSongList).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '夏祭',
+    input: { text: '夏祭' },
+    key: 'bangdream.song.search',
+    name: 'song.search fuzzy list',
+  },
+  {
+    assertBranch: () => expect(mockDrawSongChart).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '136 3',
+    input: { text: '136 expert' },
+    key: 'bangdream.song.chart',
+    name: 'song.chart explicit difficulty',
+  },
+  {
+    assertBranch: () => expect(mockDrawSongRandom).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '随机曲',
+    input: { text: '' },
+    key: 'bangdream.song.random',
+    name: 'song.random empty query',
+  },
+  {
+    assertBranch: () => expect(mockDrawSongMetaList).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: 'cn',
+    input: { text: 'cn' },
+    key: 'bangdream.song.meta',
+    name: 'song.meta server',
+  },
+  {
+    assertBranch: () => expect(mockDrawCardDetail).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '1001',
+    input: { text: '1001' },
+    key: 'bangdream.card.search',
+    name: 'card.search numeric detail',
+  },
+  {
+    assertBranch: () => expect(mockDrawCardList).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '香澄',
+    input: { text: '香澄' },
+    key: 'bangdream.card.search',
+    name: 'card.search fuzzy list',
+  },
+  {
+    assertBranch: () => {
+      expect(mockCardCtor).toHaveBeenCalledWith(1001);
+      expect(mockCardGetCardIllustrationImageBuffer).toHaveBeenCalledTimes(2);
+    },
+    expectedImageCount: 2,
+    expectedQuery: '1001',
+    input: { text: '1001' },
+    key: 'bangdream.card.illustration',
+    name: 'card.illustration trained variants',
+  },
+  {
+    assertBranch: () =>
+      expect(mockDrawCharacterDetail).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '1',
+    input: { text: '1' },
+    key: 'bangdream.character.search',
+    name: 'character.search numeric detail',
+  },
+  {
+    assertBranch: () => expect(mockDrawCharacterList).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '香澄',
+    input: { text: '香澄' },
+    key: 'bangdream.character.search',
+    name: 'character.search fuzzy list',
+  },
+  {
+    assertBranch: () => expect(mockDrawEventDetail).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '50',
+    input: { text: '50' },
+    key: 'bangdream.event.search',
+    name: 'event.search numeric detail',
+  },
+  {
+    assertBranch: () => expect(mockDrawEventList).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: 'summer',
+    input: { text: 'summer' },
+    key: 'bangdream.event.search',
+    name: 'event.search fuzzy list',
+  },
+  {
+    assertBranch: () => expect(mockDrawEventStage).toHaveBeenCalledWith(
+      50,
+      3,
+      true,
+      true,
+    ),
+    expectedImageCount: 5,
+    expectedQuery: '50',
+    input: { text: '50 -m cn' },
+    key: 'bangdream.event.stage',
+    name: 'event.stage meta split output',
+  },
+  {
+    assertBranch: () => expect(mockDrawPlayerDetail).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '123456',
+    input: { text: '123456 cn' },
+    key: 'bangdream.player.search',
+    name: 'player.search server detail',
+  },
+  {
+    assertBranch: () => expect(mockDrawGachaDetail).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '300',
+    input: { text: '300' },
+    key: 'bangdream.gacha.search',
+    name: 'gacha.search detail',
+  },
+  {
+    assertBranch: () => {
+      expect(mockGachaCtor).toHaveBeenCalledWith(300);
+      expect(mockDrawRandomGacha).toHaveBeenCalledTimes(1);
+    },
+    expectedImageCount: 1,
+    expectedQuery: '10 300',
+    input: { text: '10 300' },
+    key: 'bangdream.gacha.simulate',
+    name: 'gacha.simulate explicit gacha',
+  },
+  {
+    assertBranch: () => {
+      expect(mockGetPresentGachaList).toHaveBeenCalledWith(3);
+      expect(mockDrawRandomGacha).toHaveBeenCalledTimes(1);
+    },
+    expectedImageCount: 1,
+    expectedQuery: '10',
+    input: { text: '10 cn' },
+    key: 'bangdream.gacha.simulate',
+    name: 'gacha.simulate present gacha fallback',
+  },
+  {
+    assertBranch: () => expect(mockDrawCutoffDetail).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '1000 50',
+    input: { text: 'ycx 1000 cn', eventId: 50 },
+    key: 'bangdream.cutoff.detail',
+    name: 'cutoff.detail tier detail',
+  },
+  {
+    assertBranch: () => expect(mockDrawCutoffEventTop).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '10 50',
+    input: { eventId: 50, mainServer: 'cn', tier: 10 },
+    key: 'bangdream.cutoff.detail',
+    name: 'cutoff.detail top10 branch',
+  },
+  {
+    assertBranch: () => expect(mockDrawCutoffAll).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '50',
+    input: { eventId: 50, text: 'cn' },
+    key: 'bangdream.cutoff.all',
+    name: 'cutoff.all event',
+  },
+  {
+    assertBranch: () =>
+      expect(mockDrawCutoffListOfRecentEvent).toHaveBeenCalledTimes(1),
+    expectedImageCount: 1,
+    expectedQuery: '1000 50',
+    input: { text: '1000 50 cn' },
+    key: 'bangdream.cutoff.recent',
+    name: 'cutoff.recent tier',
+  },
+];
+
+const manifestOperations: ManifestOperation[] = JSON.parse(
+  readFileSync(
+    join(process.cwd(), 'src/modules/qqbot/plugins/bangdream/plugin.json'),
+    'utf8',
+  ),
+).operations;
+let operationsByKey: Map<BangDreamOperationKey, any>;
+
+describe('BangDream operation branch matrix', () => {
+  beforeAll(async () => {
+    const { getBangDreamOperationsByHandlerName } = await import(
+      '@/modules/qqbot/plugins/bangdream/src/operations'
+    );
+    const operationsByHandlerName = getBangDreamOperationsByHandlerName();
+    operationsByKey = new Map(
+      manifestOperations.map((operation) => [
+        operation.key,
+        operationsByHandlerName.get(operation.handlerName),
+      ]),
+    );
+  });
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('covers every manifest command operation in the branch matrix', () => {
+    expect([...new Set(branchCases.map((item) => item.key))].sort()).toEqual(
+      manifestOperations.map((operation) => operation.key).sort(),
+    );
+  });
+
+  it.each(branchCases)(
+    'executes $name and compares output contract',
+    async (branchCase) => {
+      const operation = operationsByKey.get(branchCase.key);
+      expect(operation).toBeDefined();
+
+      const output = await operation!.execute(
+        branchCase.input,
+        createCommandContext(),
+      );
+
+      expect(output).toMatchObject({
+        imageCount: branchCase.expectedImageCount,
+        operationKey: branchCase.key,
+        query: branchCase.expectedQuery,
+        source: 'BangDream 内置插件',
+      });
+      expect(output.replyText.match(/\[CQ:image,file=base64:\/\//g)).toHaveLength(
+        branchCase.expectedImageCount,
+      );
+      branchCase.assertBranch();
+    },
+  );
+});
+
+function createCommandContext() {
+  const pickText = (input: BangDreamCommandInput) =>
+    `${input.query || input.text || input.raw || ''}`.trim();
+  const optionalNumber = (value: unknown) => {
+    if (value === undefined || value === null || value === '') return undefined;
+    const parsed = Number(value);
+    return Number.isInteger(parsed) ? parsed : undefined;
+  };
+  const getTokens = (input: BangDreamCommandInput) => {
+    if (Array.isArray(input.args)) {
+      return input.args.map((item) => `${item}`.trim()).filter(Boolean);
+    }
+    return pickText(input).split(/\s+/).filter(Boolean);
+  };
+  const normalizeServer = (value: unknown) => {
+    if (value === undefined || value === null || value === '') return undefined;
+    const raw = `${value}`.trim().toLowerCase();
+    const mapped: Record<string, number> = {
+      cn: 3,
+      en: 1,
+      jp: 0,
+      kr: 4,
+      tw: 2,
+      国服: 3,
+      日服: 0,
+    };
+    const numeric = optionalNumber(raw);
+    if (numeric !== undefined && numeric >= 0 && numeric <= 4) {
+      return numeric;
+    }
+    return mapped[raw];
+  };
+  const pickMainServer = (input: BangDreamCommandInput, tokens: string[]) => {
+    const explicit =
+      input.mainServer ??
+      input.serverName ??
+      input.server ??
+      tokens.find((item) => normalizeServer(item) !== undefined);
+    return normalizeServer(explicit) ?? 3;
+  };
+
+  return {
+    drawFuzzyResult: async (
+      _query: string,
+      render: (matches: Record<string, unknown>) => Promise<Array<Buffer>>,
+    ) => render({ result: [1] }),
+    firstNumber: (tokens: string[]) =>
+      tokens.map((item) => optionalNumber(item)).find((item) => item !== undefined),
+    firstToken: (input: BangDreamCommandInput) => getTokens(input)[0],
+    getRenderOptions: (
+      input: BangDreamCommandInput,
+      defaults: { useEasyBG?: boolean } = {},
+    ) => ({
+      compress: input.compress === undefined ? true : input.compress !== false,
+      displayedServerList: [3, 0],
+      mainServer: pickMainServer(input, getTokens(input)),
+      useEasyBG:
+        input.useEasyBG === undefined
+          ? defaults.useEasyBG ?? false
+          : input.useEasyBG !== false,
+    }),
+    getTokens,
+    isInteger: (value: string) => /^(0|[1-9]\d*)$/.test(value),
+    normalizeBoolean: (value: unknown, fallback: boolean) => {
+      if (value === undefined || value === null || value === '') return fallback;
+      if (typeof value === 'boolean') return value;
+      return ['1', 'true', 'yes', 'y', '-m'].includes(
+        `${value}`.trim().toLowerCase(),
+      );
+    },
+    optionalNumber,
+    pickDifficulty: (value: unknown) => {
+      const numeric = optionalNumber(value);
+      if (numeric !== undefined) return numeric;
+      const mapped: Record<string, number> = {
+        easy: 0,
+        expert: 3,
+        hard: 2,
+        normal: 1,
+        special: 4,
+      };
+      return mapped[`${value || ''}`.trim().toLowerCase()];
+    },
+    pickMainServer,
+    pickText,
+    requireNumber: (explicit: unknown, fallback: unknown, message: string) => {
+      const value = optionalNumber(explicit) ?? optionalNumber(fallback);
+      if (value === undefined) throw new Error(message);
+      return value;
+    },
+    requireText: (input: BangDreamCommandInput, message: string) => {
+      const value = pickText(input);
+      if (!value) throw new Error(message);
+      return value;
+    },
+    secondNumber: (tokens: string[]) =>
+      tokens
+        .map((item) => optionalNumber(item))
+        .filter((item) => item !== undefined)[1],
+    toImageReply: (
+      operationKey: BangDreamOperationKey,
+      query: string,
+      list: Array<Buffer | string>,
+    ) => {
+      const images = list.filter((item): item is Buffer => Buffer.isBuffer(item));
+      if (images.length === 0) {
+        throw new Error(
+          list.find((item): item is string => typeof item === 'string') ||
+            'BangDream 未返回图片',
+        );
+      }
+      return {
+        imageCount: images.length,
+        operationKey,
+        query,
+        replyText: images
+          .map((item) => `[CQ:image,file=base64://${item.toString('base64')}]`)
+          .join('\n'),
+        source: 'BangDream 内置插件',
+      };
+    },
+  } as any;
+}
diff --git a/test/qqbot/plugins/bangdream/application/bangdream-package-entry.spec.ts b/test/qqbot/plugins/bangdream/application/bangdream-package-entry.spec.ts
index 8e4c205..1b65b0b 100644
--- a/test/qqbot/plugins/bangdream/application/bangdream-package-entry.spec.ts
+++ b/test/qqbot/plugins/bangdream/application/bangdream-package-entry.spec.ts
@@ -9,6 +9,7 @@ const mockContext = {
   refreshDictionaryCache: jest.fn(),
 };
 const mockConfigureBangDreamRuntimeIo = jest.fn();
+const mockPreloadBangDreamRenderAssets = jest.fn();
 const mockOperationModules = new Map<string, jest.Mock>();
 const mockManifestOperations = [
   ['bangdream.song.search', 'searchSong'],
@@ -42,6 +43,13 @@ jest.mock(
   }),
 );
 
+jest.mock(
+  '@/modules/qqbot/plugins/bangdream/src/application/render-assets',
+  () => ({
+    preloadBangDreamRenderAssets: mockPreloadBangDreamRenderAssets,
+  }),
+);
+
 jest.mock('@/modules/qqbot/plugins/bangdream/src/operations', () => ({
   getBangDreamOperationsByHandlerName: () =>
     new Map(
@@ -85,6 +93,7 @@ describe('BangDream package entry', () => {
     mockOperationModules.clear();
     mockContext.refreshDictionaryCache.mockResolvedValue(undefined);
     mockContext.checkHealth.mockResolvedValue(true);
+    mockPreloadBangDreamRenderAssets.mockResolvedValue(undefined);
   });
 
   it('binds every manifest operation directly to the package operation modules', async () => {
@@ -120,6 +129,7 @@ describe('BangDream package entry', () => {
     });
 
     expect(mockContext.refreshDictionaryCache).toHaveBeenCalledTimes(1);
+    expect(mockPreloadBangDreamRenderAssets).toHaveBeenCalledTimes(1);
     expect(waitForBangDreamCatalogReady).toHaveBeenCalledWith([
       'songs',
       'meta',
diff --git a/test/qqbot/plugins/bangdream/song/song-search-rendering.spec.ts b/test/qqbot/plugins/bangdream/song/song-search-rendering.spec.ts
index de58109..47d5a56 100644
--- a/test/qqbot/plugins/bangdream/song/song-search-rendering.spec.ts
+++ b/test/qqbot/plugins/bangdream/song/song-search-rendering.spec.ts
@@ -36,4 +36,57 @@ describe('BangDream song search rendering', () => {
     expect(order).toEqual([1, 2, 3]);
     expect(images.map((image) => image.width)).toEqual([1, 2, 3]);
   });
+
+  it('keeps Tsugu song list style by loading jackets with the requested server priority', async () => {
+    const { Canvas } = await import('skia-canvas');
+    const { drawSongInList } = await import(
+      '@/modules/qqbot/plugins/bangdream/src/domain/song/song-list.renderer'
+    );
+    const requestedServers = [Server.cn, Server.jp];
+    const getSongJacketImage = jest.fn(async () => new Canvas(64, 64));
+    const song = {
+      bandId: 1,
+      difficulty: {
+        0: { playLevel: 9 },
+      },
+      getSongJacketImage,
+      musicTitle: ['FIRE BIRD', 'FIRE BIRD', 'FIRE BIRD', 'FIRE BIRD'],
+      publishedAt: [1, 1, 1, 1, 1],
+      songId: 187,
+    } as unknown as Song;
+
+    await drawSongInList(song, undefined, 'Roselia', requestedServers);
+
+    expect(getSongJacketImage).toHaveBeenCalledWith(requestedServers);
+  });
+
+  it('does not replace fuzzy search list jackets with lightweight placeholders', async () => {
+    const { renderSongListItemsSequentially } = await import(
+      '@/modules/qqbot/plugins/bangdream/src/domain/song/song-search.renderer'
+    );
+    const renderOptions: unknown[] = [];
+    const songs = [187, 243].map(
+      (songId) =>
+        ({
+          songId,
+        }) as Song,
+    );
+    const renderer = (async (
+      _song,
+      _difficulty,
+      _text,
+      _displayedServerList,
+      options,
+    ) => {
+      renderOptions.push(options);
+      return {
+        height: 1,
+        width: 1,
+      } as any;
+    }) as any;
+
+    await renderSongListItemsSequentially(songs, [Server.cn], renderer);
+
+    expect(renderOptions).toEqual([undefined, undefined]);
+  });
 });
diff --git a/test/qqbot/plugins/bangdream/theme/canvas-background.spec.ts b/test/qqbot/plugins/bangdream/theme/canvas-background.spec.ts
new file mode 100644
index 0000000..de98b2c
--- /dev/null
+++ b/test/qqbot/plugins/bangdream/theme/canvas-background.spec.ts
@@ -0,0 +1,43 @@
+import { drawScaledTextureTile } from '@/modules/qqbot/plugins/bangdream/src/theme/canvas-background';
+
+describe('BangDream easy background rendering', () => {
+  it('keeps Tsugu texture scale while avoiding scaled drawImage overload', () => {
+    const calls: string[] = [];
+    const context = {
+      drawImage: jest.fn((_image, x, y, width, height) => {
+        calls.push(
+          ['drawImage', x, y, width ?? 'none', height ?? 'none'].join(':'),
+        );
+      }),
+      restore: jest.fn(() => calls.push('restore')),
+      save: jest.fn(() => calls.push('save')),
+      scale: jest.fn((x, y) => calls.push(`scale:${x}:${y}`)),
+      translate: jest.fn((x, y) => calls.push(`translate:${x}:${y}`)),
+    };
+    const texture = {
+      height: 1002,
+      width: 1334,
+    };
+
+    drawScaledTextureTile(context as any, texture as any, {
+      ratio: 1.334,
+      x: -12,
+      y: 34,
+    });
+
+    expect(calls).toEqual([
+      'save',
+      'translate:-12:34',
+      'scale:1.334:1.334',
+      'drawImage:0:0:none:none',
+      'restore',
+    ]);
+    expect(context.drawImage).not.toHaveBeenCalledWith(
+      texture,
+      -12,
+      34,
+      texture.width * 1.334,
+      texture.height * 1.334,
+    );
+  });
+});
diff --git a/test/qqbot/plugins/bangdream/theme/theme-asset-preload.spec.ts b/test/qqbot/plugins/bangdream/theme/theme-asset-preload.spec.ts
new file mode 100644
index 0000000..22d5536
--- /dev/null
+++ b/test/qqbot/plugins/bangdream/theme/theme-asset-preload.spec.ts
@@ -0,0 +1,77 @@
+import { readFile, readdir, stat } from 'node:fs/promises';
+import { join } from 'node:path';
+import * as XLSX from 'xlsx';
+
+async function collectTypeScriptFiles(dir: string): Promise<string[]> {
+  const entries = await readdir(dir, { withFileTypes: true });
+  const files = await Promise.all(
+    entries.map(async (entry) => {
+      const fullPath = join(dir, entry.name);
+      if (entry.isDirectory()) return collectTypeScriptFiles(fullPath);
+      if (!entry.isFile() || !entry.name.endsWith('.ts')) return [];
+      const fileStat = await stat(fullPath);
+      return fileStat.isFile() ? [fullPath] : [];
+    }),
+  );
+  return files.flat();
+}
+
+describe('BangDream theme asset preload', () => {
+  it('loads title assets after runtime IO is configured during plugin activation', async () => {
+    jest.resetModules();
+    const { createPlugin } = await import(
+      '@/modules/qqbot/plugins/bangdream/src'
+    );
+    const manifest = JSON.parse(
+      await readFile(
+        join(
+          process.cwd(),
+          'src/modules/qqbot/plugins/bangdream/plugin.json',
+        ),
+        'utf8',
+      ),
+    );
+    const plugin = createPlugin({
+      io: {
+        readAssetFile: async (filePath) => readFile(filePath),
+        readExcelRows: async (filePath) => {
+          const workbook = XLSX.readFile(filePath);
+          return XLSX.utils.sheet_to_json(
+            workbook.Sheets[workbook.SheetNames[0]],
+          );
+        },
+      },
+      operations: manifest.operations.map((operation) => ({
+        handlerName: operation.handlerName as any,
+        key: operation.key as any,
+      })),
+    });
+
+    await plugin.activate();
+    const { drawTitle } = await import(
+      '@/modules/qqbot/plugins/bangdream/src/theme/title.renderer'
+    );
+    const title = drawTitle('查询', '歌曲列表');
+
+    expect(title.width).toBe(587);
+    expect(title.height).toBe(110);
+  });
+
+  it('does not load local render assets at module import time', async () => {
+    const srcRoot = join(
+      process.cwd(),
+      'src/modules/qqbot/plugins/bangdream/src',
+    );
+    const files = await collectTypeScriptFiles(srcRoot);
+    const eagerLoaders: string[] = [];
+
+    for (const file of files) {
+      const source = await readFile(file, 'utf8');
+      if (source.includes('loadImageOnce();')) {
+        eagerLoaders.push(file.replace(process.cwd(), '').replace(/^[\\/]/, ''));
+      }
+    }
+
+    expect(eagerLoaders).toEqual([]);
+  });
+});