A high school student who, while being known in Tokyo as a kendo strongarm and accomplished military and literary scholar, commutes to prep school. He acts as the manager of a student think-tank centered in Hongo, Bunkyo Ward. At the same time, he is a member of the upper echelons of the Hongo Wisemen, allies of the Berserkers. He adores doting on his one and only little brother, but is always saddened by being treated as an annoyance. Knowing the darkness from before the time when Transients.