Disaster at the Marukane department store's grand reopening was averted thanks to the efforts of Koichi, Pop Step and their band of low-end idols. But a greater calamity was prevented by the clash between Knuckleduster and his own wayward daughter, Tamao, who was possessed by the villainous Kuin Hachisuka! In the end, Knuckleduster nearly had to kill Tamao to free her from the evil entity controlling her. Now that he has achieved his goal and saved his daughter, is Knuckleduster through with his life as a vigilante?