Gin and White Horse Detective Become Smaller

Gin unexpectedly shrunk and met FBL, who was 17 years old and then 7 years old. White Horse Detective and Gin are best friends. White Horse Detective is the world's largest hacker. Because Gin has the principle of enjoying the blessings for himself and taking the trouble together, Gin and Black Feather drank the latest version of APTX4869 and became 5 years old. Assume that Black Feather Pirates Yi Weisi White Horse Detective is not a romantic relationship, don't be misled by the label Intention: one's own imagination