Muichiro is an air-headed individual who seems to constantly wander off in thought and is unable to focus on anything. Impassive and, at times, obtuse, he tends to think only for himself and operates on logic alone, never letting emotions guide him, making him seem seemingly apathetic and indifferent. He has a bad memory. He's too straightforward and can insult a person without noticing it. His friend is Tanjiro. When he sees Tanjiro he becomes friendly and emotional