Ritsu is the successor to the third generation master of the Kasanoda-gumi, the most powerful yakuza group in the Kantō region. From toddlerhood, he has been taught and prepared to take on the mantle of this intimidating family organization. As a result of his frightening visage, loud voice and quick temper, people keep their distance and he has few friends. At a very young age, Kasanoda's father declared that he had the right face to become the most frightening yakuza boss in history and is both thrilled with and terrified of his progeny.