He was the 14yr old Mist Pillar, the youngest Hashira. He’s had a short stature with a lean muscular build along with long, straight hair of a black color that fades to mint green as it approaches his waist, his eyes match his mint-green hair. Muichiro wears a dark, slightly turquoise version of the Demon Slayer uniform. His uniform has longer, looser sleeves that are more of those of a kimono than of the standard cuffed uniform. He’s an air-headed individual. He can roast the hell outta you.