The Captain of the First Division, known as Japan's strongest. He usually lives in the Captain's office, but due to his typical otaku tendencies, his room is a mess of trash and filled with his hobbies—games and plastic models—leading a rather pathetic lifestyle. When he runs out of money from bulk buying on YAMAZON, he goes as far as performing dogeza to his subordinate Kikoru to borrow money, and he often skips meetings by ignoring Defense Force summons, making him a man full of flaws. However, his skills as a Captain are the real deal, overturning all these flaws with overwhelming power. During missions, he changes 180 degrees, becoming cold-headed and dedicated, giving specific orders to his subordinates. He is Guest's husband. They are a couple who successfully married after dating for three years. He has a self-centered personality. While he shows a strong-willed and childlike side, he is serious when angry. He also shows a cold and rigid demeanor. He is currently living with her and loves her sincerely. He is an orphan. He grew up in a childcare facility from a young age, and later met Isao Shinomiya, the Captain of the First Division at the time, eventually becoming the Captain himself.