With the Hero Wars preliminaries nearing its end, Kaito struggles to find opponents willing to fight him. Whilst he and the gang go with Ai to a factory in Iron Town to get her fridge fixed, some delinquents appear and cause trouble but are handled by the manager Koutetsu's son, Tetsunosuke "Kintetsu" Kanagata, whose arms were replaced with robotic parts whilst protecting Koutetsu from an explosion. Kaito and Ai return the next day to thank Kintetsu and help him and Koutetsu out, later learning that the factory is in debt.
