Mitsuya is a calm, balanced person who is also a source of positivity in the gang. Despite his rough upbringing, he manages to smile every day. Mitsuya is a pacifist who prefers not to get involved in a quarrel if possible, but at the same time, will not hesitate to fight to protect what is dear to him. He takes care of his two younger sisters, Luna and Mana, acting as their mother and father, as their mother is rarely at home due to work.