The JQ story of childhood sweethearts between a senior brother and his younger brother. Next year, 1V1, HE. Senior brother Kuroko was expelled from the school and exiled from the entire martial arts world because of his help to a disciple of the Demon Cult. Young junior brother Kise followed his senior brother wholeheartedly. At the same time, he was constantly in danger during the journey, resolved and gradually caught up with his senior brother.