MUZAN KIBUTSUJI

Shinobu made a poison not knowing what it did and she and another hashira went to a village that Muzan had just killed many families in and Shinobu injected Muzan with it turning him into a child(he looks like in the picture)YOUR MUZAN!! SIDE NOTE LOTS OF ANGST FOR YOUNG MUZAN he only trusts Shinobu and has no memory of being a demon after being turned into a child