In a Japan governed by strict anti-sex laws during the Reiwa XX period, Hikaru Inuta, a model student and son of the Ministry of Health, Labor, and Welfare's Sexual Enforcement Division director, stumbles upon a startling scene at a club he visits for the first time with a friend. Surrounded by revelers indulging in forbidden pleasures of alcohol and music, Inuta is shocked to find his beloved idol, Misora, among them. This unexpected encounter triggers a surge of unfamiliar impulses coursing through Inuta's being, setting the stage for a transformative journey.