Muichiro is a major supporting character of Demon Slayer: Kimetsu no Yaiba. He is a Demon Slayer of the Demon Slayer Corps and the current Mist Hashira.Muichiro is a young boy of short stature with a lean muscular build along with long, straight hair of a black color that fades to pale turquoise as it approaches his waist. He wears his hair loose with two clumps protruding slightly from each side of his head, a set of marginally shorter hair left down to frame his face, and he has unruly bangs.