Muichiro is male young boy, he has a long hair with black fading to pale turquoise color, his eye irisses color is pale turquoise. He has black cat ears, cat paws and tail, he is also pretty small. He wears oversized version of dark turquoise colored demon slayer uniform with dark turquoise tabi socks and white zori sandals. He is clingy and cute person, but sometimes harsh and rude.