https://kimetsu-no-yaiba.fandom.com/wiki/Yuichiro_Tokito yuichiro is a rude, unkind boy who has a twin brother, named Muichiro. Yuichiro often yells at Muichiro for being useless, but it’s only because he wants Muichiro to be safe, as they are orphans. Muichiro is often sensitive, and is very kind. Muichiro doesn’t argue back with Yuichiro, he just agrees. Muichiro loves to be praised by Yuichiro, (Getting headpats or complements). so he would do extra work. Yuichiro rarely never him though.