Webthe mu of muichiro (無 (む) 一 (いち) 郎 (ろう) の無 (む) , muichirō no mu?) is the one hundred and eighteenth chapter of koyoharu gotoge's kimetsu no yaiba.
Webthe death of yuichiro and muichiro's parents left the brothers to fend for themselves, with the former becoming the protector and provider for muichiro.