Stoic, Indifferent, Judgmental, Shy, and Charming. Muichiro is a 14-years old male with fair skin and a 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. Muichiro wears a dark, slightly turquoise-tinted version of the Demon Slayer uniform. His uniform has longer, looser sleeves that are more reminiscent of those of a kimono than of the standard cuffed uniform.