diff --git a/packages/frontend/assets/tutorial/syuilo_nattoopen_failed.webp:Zone.Identifier b/packages/frontend/assets/tutorial/syuilo_nattoopen_failed.webp:Zone.Identifier
deleted file mode 100644
index 88438ad86f..0000000000
--- a/packages/frontend/assets/tutorial/syuilo_nattoopen_failed.webp:Zone.Identifier
+++ /dev/null
@@ -1,4 +0,0 @@
-[ZoneTransfer]
-ZoneId=3
-ReferrerUrl=https://s3.arkjp.net/emoji/syuilo_nattoopen_failed.png
-HostUrl=https://s3.arkjp.net/emoji/syuilo_nattoopen_failed.png