diff --git a/frontend/messages/en.json b/frontend/messages/en.json
index ddf6ca6..ea4813f 100644
--- a/frontend/messages/en.json
+++ b/frontend/messages/en.json
@@ -12,10 +12,14 @@
     "usability_detail": "The defined test cases can be used over and over again in test runs. The status of test runs and projects can be viewed graphically.",
     "universal_title": "Universal",
     "universal_detail": "Multi language support and dark theme allow anyone to use the system without any inconvenience.",
-    "organize_test_cases": "Organize test cases and manage tests graphically",
-    "case_edit": "Test Cases",
-    "case_home": "Dashboard",
-    "case_run": "Test Runs"
+    "project_title": "Project-based",
+    "project_subtitle": "Test cases and test runs are managed for each project. A dashboard allows you to check test case types and progress status.",
+    "case_management_title": "Test Case Management",
+    "case_management_subtitle": "Create a project or folder and define test cases.",
+    "run_management_title": "Test Run Management",
+    "run_management_subtitle": "The defined test cases can be used over and over again in test runs. The status of test runs and projects can be viewed graphically.",
+    "member_management_title": "Member Management",
+    "member_management_subtitle": "You can add/delete project members and set roles for each member."
   },
   "Header": {
     "title": "Open Source Test Case Management System",
diff --git a/frontend/messages/ja.json b/frontend/messages/ja.json
index c8945a8..b44e300 100644
--- a/frontend/messages/ja.json
+++ b/frontend/messages/ja.json
@@ -12,10 +12,14 @@
     "usability_detail": "定義したテストケースはテストランで何度も繰り返し使用可能です。テストランやプロジェクトのステータスをグラフで確認できます。",
     "universal_title": "ユニバーサル",
     "universal_detail": "多言語対応やダークテーマ機能により誰もが不自由なく使うことができます。",
-    "organize_test_cases": "テストケースを整理とグラフィカルなテスト管理",
-    "case_edit": "テストケース",
-    "case_home": "ダッシュボード",
-    "case_run": "テストラン"
+    "project_title": "プロジェクトベース",
+    "project_subtitle": "プロジェクトごとにテストケース, テスト実行を管理します。テストケースの種類や進捗状況をダッシュボードで確認できます。",
+    "case_management_title": "テストケース管理",
+    "case_management_subtitle": "プロジェクトやフォルダーを作成し、テストケースを定義します。",
+    "run_management_title": "テストラン管理",
+    "run_management_subtitle": "定義したテストケースはテストランで何度も繰り返し使用可能です。テストランやプロジェクトのステータスをグラフで確認できます。",
+    "member_management_title": "メンバー管理",
+    "member_management_subtitle": "プロジェクトメンバーを追加/削除したり、各メンバーに役割を設定することができます。"
   },
   "Header": {
     "title": "オープンソーステストケース管理システム",
diff --git a/frontend/public/top/caseEdit.png b/frontend/public/top/caseEdit.png
deleted file mode 100644
index c981bd4..0000000
Binary files a/frontend/public/top/caseEdit.png and /dev/null differ
diff --git a/frontend/public/top/caseHome.png b/frontend/public/top/caseHome.png
deleted file mode 100644
index a4dfb54..0000000
Binary files a/frontend/public/top/caseHome.png and /dev/null differ
diff --git a/frontend/public/top/caseRun.png b/frontend/public/top/caseRun.png
deleted file mode 100644
index 65714fd..0000000
Binary files a/frontend/public/top/caseRun.png and /dev/null differ
diff --git a/frontend/public/top/dark/case.png b/frontend/public/top/dark/case.png
new file mode 100644
index 0000000..38ca2c4
Binary files /dev/null and b/frontend/public/top/dark/case.png differ
diff --git a/frontend/public/top/dark/member.png b/frontend/public/top/dark/member.png
new file mode 100644
index 0000000..b0fde19
Binary files /dev/null and b/frontend/public/top/dark/member.png differ
diff --git a/frontend/public/top/dark/project.png b/frontend/public/top/dark/project.png
new file mode 100644
index 0000000..7d28b9a
Binary files /dev/null and b/frontend/public/top/dark/project.png differ
diff --git a/frontend/public/top/dark/run.png b/frontend/public/top/dark/run.png
new file mode 100644
index 0000000..f23ff6c
Binary files /dev/null and b/frontend/public/top/dark/run.png differ
diff --git a/frontend/public/top/light/case.png b/frontend/public/top/light/case.png
new file mode 100644
index 0000000..01f2eb1
Binary files /dev/null and b/frontend/public/top/light/case.png differ
diff --git a/frontend/public/top/light/member.png b/frontend/public/top/light/member.png
new file mode 100644
index 0000000..1320721
Binary files /dev/null and b/frontend/public/top/light/member.png differ
diff --git a/frontend/public/top/light/project.png b/frontend/public/top/light/project.png
new file mode 100644
index 0000000..872c7c4
Binary files /dev/null and b/frontend/public/top/light/project.png differ
diff --git a/frontend/public/top/light/run.png b/frontend/public/top/light/run.png
new file mode 100644
index 0000000..94a8fcf
Binary files /dev/null and b/frontend/public/top/light/run.png differ
diff --git a/frontend/src/app/[locale]/DemoImage.tsx b/frontend/src/app/[locale]/DemoImage.tsx
new file mode 100644
index 0000000..59ab3fb
--- /dev/null
+++ b/frontend/src/app/[locale]/DemoImage.tsx
@@ -0,0 +1,32 @@
+'use client';
+import { Image } from '@nextui-org/react';
+import { useState, useEffect } from 'react';
+import { useTheme } from 'next-themes';
+
+type Props = {
+  imageName: string;
+  altText: string;
+};
+
+export default function DemoImage({ imageName, altText }: Props) {
+  const { theme, setTheme } = useTheme();
+  const [currentTheme, setCurrentTheme] = useState('light');
+
+  useEffect(() => {
+    if (theme) {
+      setCurrentTheme(theme);
+    }
+  }, [theme]);
+
+  return (
+    <>
+      <Image
+        src={`/top/${currentTheme}/${imageName}.png`}
+        alt={altText}
+        height={500}
+        shadow="md"
+        className="max-w-full"
+      />
+    </>
+  );
+}
diff --git a/frontend/src/app/[locale]/PaneDemoImages.tsx b/frontend/src/app/[locale]/PaneDemoImages.tsx
deleted file mode 100644
index baeef2e..0000000
--- a/frontend/src/app/[locale]/PaneDemoImages.tsx
+++ /dev/null
@@ -1,76 +0,0 @@
-'use client';
-import { title } from '@/components/primitives';
-import { useState, useEffect } from 'react';
-import { Tabs, Tab, Image } from '@nextui-org/react';
-
-type PaneDemoImagesMessages = {
-  title: string;
-  caseEdit: string;
-  caseHome: string;
-  caseRun: string;
-};
-type Props = {
-  messages: PaneDemoImagesMessages;
-};
-
-export default function DemoImages({ messages }: Props) {
-  const [currentTab, setcurrentTab] = useState('edit');
-  const [currentImage, setcurrentImage] = useState({
-    src: '/top/caseEdit.png',
-    alt: messages.caseEdit,
-  });
-  const tabs = [
-    {
-      key: 'edit',
-      title: messages.caseEdit,
-      src: '/top/caseEdit.png',
-      alt: messages.caseEdit,
-    },
-    {
-      key: 'home',
-      title: messages.caseHome,
-      src: '/top/caseHome.png',
-      alt: messages.caseHome,
-    },
-    {
-      key: 'run',
-      title: messages.caseRun,
-      src: '/top/caseRun.png',
-      alt: messages.caseRun,
-    },
-  ];
-
-  useEffect(() => {
-    const found = tabs.find((tab) => tab.key === currentTab);
-    const newImage = { src: found.src, alt: found.title };
-    setcurrentImage(newImage);
-  }, [currentTab]);
-
-  return (
-    <>
-      <div className="flex flex-wrap lg:text-left text-center">
-        <div className="w-full lg:w-5/12 p-4">
-          <h2 className={title({ size: 'sm' })}>{messages.title}</h2>
-          <br />
-          <Tabs
-            aria-label="Options"
-            color={'primary'}
-            radius="full"
-            size="md"
-            className="mt-8"
-            selectedKey={currentTab}
-            onSelectionChange={setcurrentTab}
-          >
-            {tabs.map((tab) => (
-              <Tab key={tab.key} title={tab.title} />
-            ))}
-          </Tabs>
-        </div>
-
-        <div className="flex justify-center w-full lg:w-7/12 p-4">
-          <Image src={currentImage.src} alt={currentImage.alt} shadow="md" height={500} className="max-w-full" />
-        </div>
-      </div>
-    </>
-  );
-}
diff --git a/frontend/src/app/[locale]/page.tsx b/frontend/src/app/[locale]/page.tsx
index a8db48c..98dfb2b 100644
--- a/frontend/src/app/[locale]/page.tsx
+++ b/frontend/src/app/[locale]/page.tsx
@@ -1,18 +1,35 @@
 import { useTranslations } from 'next-intl';
-import { Divider } from '@nextui-org/react';
+import { Image, Divider } from '@nextui-org/react';
+import { title, subtitle } from '@/components/primitives';
 import PaneMainTitle from './PaneMainTitle';
 import PaneMainFeatures from './PaneMainFeatures';
-import PaneDemoImages from './PaneDemoImages';
+import DemoImage from './DemoImage';
 
 export default function Home(params: { locale: string }) {
   const t = useTranslations('Index');
 
-  const messages = {
-    title: t('organize_test_cases'),
-    caseEdit: t('case_edit'),
-    caseHome: t('case_home'),
-    caseRun: t('case_run'),
-  };
+  const demoImages = [
+    {
+      uid: 'project',
+      title: t('project_title'),
+      subTitle: t('project_subtitle'),
+    },
+    {
+      uid: 'case',
+      title: t('case_management_title'),
+      subTitle: t('case_management_subtitle'),
+    },
+    {
+      uid: 'run',
+      title: t('run_management_title'),
+      subTitle: t('run_management_subtitle'),
+    },
+    {
+      uid: 'member',
+      title: t('member_management_title'),
+      subTitle: t('member_management_subtitle'),
+    },
+  ];
 
   return (
     <section className="mx-auto max-w-screen-xl my-12">
@@ -63,7 +80,20 @@ export default function Home(params: { locale: string }) {
       </div>
 
       <Divider className="my-12" />
-      <PaneDemoImages messages={messages} />
+      <div className="flex flex-wrap lg:text-left text-center">
+        {demoImages.map((demoImage) => (
+          <div key={demoImage.uid} className="flex flex-wrap">
+            <div className="w-full lg:w-5/12 p-4">
+              <h2 className={title({ size: 'sm', color: 'pink' })}>{demoImage.title}</h2>
+              <h4 className={subtitle({ class: 'mt-4' })}>{demoImage.subTitle}</h4>
+            </div>
+
+            <div className="flex justify-center w-full lg:w-7/12 p-4">
+              <DemoImage imageName={demoImage.uid} altText={demoImage.title} />
+            </div>
+          </div>
+        ))}
+      </div>
 
       <Divider className="my-12" />
       <div className="w-full text-center py-2">