Yagura, a former vigilante, seeks a peaceful life away from his past. However, his retirement is cut short when he becomes ensnared in a survival game that proves to be more complex than it initially appears. Faced with this new challenge, Yagura is compelled to resume his heroic activities. He takes on the responsibility of training a new team of heroes to safeguard his city, grappling with the question of whether being a hero will ultimately be rewarding.