diff --git a/app/[locale]/about/images/about-image-001.webp b/app/[locale]/about/images/about-image-001.webp
index 953b003af..2dd4e6913 100644
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index 4a017152f..c4289d4bc 100644
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diff --git a/app/[locale]/about/images/about-image-003.webp b/app/[locale]/about/images/about-image-003.webp
index 451cb3b7c..db4339d1b 100644
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diff --git a/app/[locale]/about/images/about-image-004.webp b/app/[locale]/about/images/about-image-004.webp
index aa77c7a7a..a54e7b014 100644
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diff --git a/app/[locale]/about/images/about-image-005.webp b/app/[locale]/about/images/about-image-005.webp
index cb7be7df7..2b228b8b7 100644
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diff --git a/app/[locale]/about/images/about-image-006.webp b/app/[locale]/about/images/about-image-006.webp
index fdcdf4d6a..7010ed0d6 100644
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diff --git a/app/[locale]/bar/images/bar-image-001.jpg b/app/[locale]/bar/images/bar-image-001.jpg
deleted file mode 100644
index 5eed8f0ab..000000000
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diff --git a/app/[locale]/bar/images/bar-image-001.webp b/app/[locale]/bar/images/bar-image-001.webp
new file mode 100644
index 000000000..0c79c1a31
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diff --git a/app/[locale]/bar/images/bar-image-002.jpg b/app/[locale]/bar/images/bar-image-002.jpg
deleted file mode 100644
index f5599afac..000000000
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diff --git a/app/[locale]/bar/images/bar-image-002.webp b/app/[locale]/bar/images/bar-image-002.webp
new file mode 100644
index 000000000..f1de44b5e
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diff --git a/app/[locale]/bar/images/bar-image-003.jpg b/app/[locale]/bar/images/bar-image-003.jpg
deleted file mode 100644
index a57793a6a..000000000
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diff --git a/app/[locale]/bar/images/bar-image-003.webp b/app/[locale]/bar/images/bar-image-003.webp
new file mode 100644
index 000000000..3febba093
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diff --git a/app/[locale]/bar/images/bar-image-004.jpg b/app/[locale]/bar/images/bar-image-004.jpg
deleted file mode 100644
index 27d012dac..000000000
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diff --git a/app/[locale]/bar/images/bar-image-004.webp b/app/[locale]/bar/images/bar-image-004.webp
new file mode 100644
index 000000000..63530c2fb
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diff --git a/app/[locale]/bar/images/bar-image-005.jpg b/app/[locale]/bar/images/bar-image-005.jpg
deleted file mode 100644
index 8f7d34748..000000000
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diff --git a/app/[locale]/bar/images/bar-image-005.webp b/app/[locale]/bar/images/bar-image-005.webp
new file mode 100644
index 000000000..bee8d45e1
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diff --git a/app/[locale]/bar/images/bar-image-006.jpg b/app/[locale]/bar/images/bar-image-006.jpg
deleted file mode 100644
index 3540e6545..000000000
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diff --git a/app/[locale]/bar/images/bar-image-006.webp b/app/[locale]/bar/images/bar-image-006.webp
new file mode 100644
index 000000000..d8ee38c04
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diff --git a/app/[locale]/bar/sagyobar-detail.tsx b/app/[locale]/bar/sagyobar-detail.tsx
index e0e50489e..3f33a4ea2 100644
--- a/app/[locale]/bar/sagyobar-detail.tsx
+++ b/app/[locale]/bar/sagyobar-detail.tsx
@@ -3,12 +3,12 @@ import clsx from 'clsx';
 import { useTranslations } from 'next-intl';
 import Image from 'next/image';
 import Link from 'next/link';
-import BarImage001 from './images/bar-image-001.jpg';
-import BarImage002 from './images/bar-image-002.jpg';
-import BarImage003 from './images/bar-image-003.jpg';
-import BarImage004 from './images/bar-image-004.jpg';
-import BarImage005 from './images/bar-image-005.jpg';
-import BarImage006 from './images/bar-image-006.jpg';
+import BarImage001 from './images/bar-image-001.webp';
+import BarImage002 from './images/bar-image-002.webp';
+import BarImage003 from './images/bar-image-003.webp';
+import BarImage004 from './images/bar-image-004.webp';
+import BarImage005 from './images/bar-image-005.webp';
+import BarImage006 from './images/bar-image-006.webp';
 
 export default function SagyobarDetail() {
   const t = useTranslations('Index');
diff --git a/app/[locale]/concept/concept-detail.tsx b/app/[locale]/concept/concept-detail.tsx
index f7a6de215..3e2e6a807 100644
--- a/app/[locale]/concept/concept-detail.tsx
+++ b/app/[locale]/concept/concept-detail.tsx
@@ -3,8 +3,8 @@ import clsx from 'clsx';
 import Logo from 'components/icons/logo';
 import { useTranslations } from 'next-intl';
 import Image from 'next/image';
-import ConceptImage001 from './images/concept-image-001.png';
-import ConceptImage002 from './images/concept-image-002.png';
+import ConceptImage001 from './images/concept-image-001.webp';
+import ConceptImage002 from './images/concept-image-002.webp';
 
 export default function ConceptDetail() {
   const t = useTranslations('Index');
diff --git a/app/[locale]/concept/images/concept-image-001.png b/app/[locale]/concept/images/concept-image-001.png
deleted file mode 100644
index 2396b2439..000000000
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diff --git a/app/[locale]/concept/images/concept-image-001.webp b/app/[locale]/concept/images/concept-image-001.webp
new file mode 100644
index 000000000..ca3dbd632
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diff --git a/app/[locale]/concept/images/concept-image-002.png b/app/[locale]/concept/images/concept-image-002.png
deleted file mode 100644
index 3a0b6fe7b..000000000
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diff --git a/app/[locale]/concept/images/concept-image-002.webp b/app/[locale]/concept/images/concept-image-002.webp
new file mode 100644
index 000000000..3c716f1f9
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diff --git a/app/[locale]/images/home-image-001.webp b/app/[locale]/images/home-image-001.webp
index 31202251f..b4424e888 100644
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diff --git a/app/[locale]/images/home-image-002.webp b/app/[locale]/images/home-image-002.webp
index 946ee9b7f..046b7b339 100644
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diff --git a/app/[locale]/images/home-image-003.webp b/app/[locale]/images/home-image-003.webp
index 504355f08..b09636de8 100644
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diff --git a/app/[locale]/images/home-image-004.webp b/app/[locale]/images/home-image-004.webp
index 5d8ed6d71..c263fdd41 100644
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diff --git a/app/[locale]/images/home-image-005.webp b/app/[locale]/images/home-image-005.webp
index af1530fb4..2708760b6 100644
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diff --git a/app/[locale]/images/home-image-006.webp b/app/[locale]/images/home-image-006.webp
new file mode 100644
index 000000000..6c98f486d
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diff --git a/app/[locale]/images/home-image-007.webp b/app/[locale]/images/home-image-007.webp
index d9de27839..7b2745e47 100644
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diff --git a/app/[locale]/images/home-image-008.webp b/app/[locale]/images/home-image-008.webp
index f4939cb33..1da17dddf 100644
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