diff --git a/people/BI4PBV/page.en.md b/people/BI4PBV/page.en.md
index affcb3d5..57132e2b 100644
--- a/people/BI4PBV/page.en.md
+++ b/people/BI4PBV/page.en.md
@@ -14,14 +14,14 @@ Suigetsu was a gentle girl who was active on radio waves.
 She sometimes seemed too obsessed with technology. However, that was also one aspect of her cuteness.
 
 <PhotoScroll photos={[
-    "${path}/photos/image0.jpg",
-    "${path}/photos/image1.jpg",
-    "${path}/photos/image2.jpg"
+    "${path}/photos/image0.webp",
+    "${path}/photos/image1.webp",
+    "${path}/photos/image2.webp"
 ]} />
 
 > zako～zako～Ciallo～(∠・ω< )⌒★
 
-<PhotoScroll photos={["${path}/photos/image3.png"]} />
+<PhotoScroll photos={["${path}/photos/image3.webp"]} />
 
 > Not just taking a break, but truly lazy, no mistake.
 >
diff --git a/people/BI4PBV/page.md b/people/BI4PBV/page.md
index 3b323a34..748c4c6e 100644
--- a/people/BI4PBV/page.md
+++ b/people/BI4PBV/page.md
@@ -14,14 +14,14 @@ info:
 即使有时会显现对于技术的执着, 但这也是她所可爱的一面呢?
 
 <PhotoScroll photos={[
-    "${path}/photos/image0.jpg",
-    "${path}/photos/image1.jpg",
-    "${path}/photos/image2.jpg"
+    "${path}/photos/image0.webp",
+    "${path}/photos/image1.webp",
+    "${path}/photos/image2.webp"
 ]} />
 
 > zako～zako～Ciallo～(∠・ω< )⌒★
 
-<PhotoScroll photos={["${path}/photos/image3.png"]} />
+<PhotoScroll photos={["${path}/photos/image3.webp"]} />
 
 > 不是犯懒，而是真懒
 >
diff --git a/people/BI4PBV/page.zh_hant.md b/people/BI4PBV/page.zh_hant.md
index 2fa3f666..4e231638 100644
--- a/people/BI4PBV/page.zh_hant.md
+++ b/people/BI4PBV/page.zh_hant.md
@@ -14,14 +14,14 @@ info:
 即使有時會顯現對於技術的執著, 但這也是她所可愛的一面呢?
 
 <PhotoScroll photos={[
-    "${path}/photos/image0.jpg",
-    "${path}/photos/image1.jpg",
-    "${path}/photos/image2.jpg"
+    "${path}/photos/image0.webp",
+    "${path}/photos/image1.webp",
+    "${path}/photos/image2.webp"
 ]} />
 
 > zako～zako～Ciallo～(∠・ω< )⌒★
 
-<PhotoScroll photos={["${path}/photos/image3.png"]} />
+<PhotoScroll photos={["${path}/photos/image3.webp"]} />
 
 > 不是犯懶, 而是真懶
 >
diff --git a/people/BI4PBV/photos/image0.jpg b/people/BI4PBV/photos/image0.jpg
deleted file mode 100644
index 586c18f5..00000000
Binary files a/people/BI4PBV/photos/image0.jpg and /dev/null differ
diff --git a/people/BI4PBV/photos/image0.webp b/people/BI4PBV/photos/image0.webp
new file mode 100644
index 00000000..aadc1060
Binary files /dev/null and b/people/BI4PBV/photos/image0.webp differ
diff --git a/people/BI4PBV/photos/image1.jpg b/people/BI4PBV/photos/image1.jpg
deleted file mode 100644
index 42217886..00000000
Binary files a/people/BI4PBV/photos/image1.jpg and /dev/null differ
diff --git a/people/BI4PBV/photos/image1.webp b/people/BI4PBV/photos/image1.webp
new file mode 100644
index 00000000..e9201749
Binary files /dev/null and b/people/BI4PBV/photos/image1.webp differ
diff --git a/people/BI4PBV/photos/image2.jpg b/people/BI4PBV/photos/image2.jpg
deleted file mode 100644
index f9b8e2f1..00000000
Binary files a/people/BI4PBV/photos/image2.jpg and /dev/null differ
diff --git a/people/BI4PBV/photos/image2.webp b/people/BI4PBV/photos/image2.webp
new file mode 100644
index 00000000..7ec05b90
Binary files /dev/null and b/people/BI4PBV/photos/image2.webp differ
diff --git a/people/BI4PBV/photos/image3.png b/people/BI4PBV/photos/image3.png
deleted file mode 100644
index 4527c1b2..00000000
Binary files a/people/BI4PBV/photos/image3.png and /dev/null differ
diff --git a/people/BI4PBV/photos/image3.webp b/people/BI4PBV/photos/image3.webp
new file mode 100644
index 00000000..2ca36f44
Binary files /dev/null and b/people/BI4PBV/photos/image3.webp differ