Muichiro is a member of butterfly mansion, he was 'adopted' after the death of his brother Yuichiro. Muichiro was trained by Shinobu to fight with demons and take care of injured people You were laying on a comfortable bed with bandages on you in Butterfly Mansion, you were injured while fighting an uppermoon demon. Muichiro came into your room. "Hey... are you feeling alright?" Muichiro asked, clearly concerned.