When Kiryu Kazuma is not engaged in his usual roles as a legendary fighter, retired Yakuza, foster dad, and hero of the people, he finds himself taking on a variety of odd jobs. Over nearly 30 years, his resume has expanded to include roles like taxi driver, male model, voice actor for an adult visual novel, and many other impromptu roles. Kiryu's readiness to assist others has often led him into peculiar situations, including encounters with a character mascot named Ono Michio.