Tokyo teen Yu Honda (Takahiro Nishijima) is the traumatized son of a widower-cum-Catholic priest (Atsuro Watabe), who begins a sexual liaison with parishioner Kaori (Makiko Watanabe). When Dad's affair comes to a halt, he begins admonishing his son to confess to so many sins that the 17-year-old takes up new ones to appease his father's increased religious zeal. One "sin" - surreptitiously taking candid photographs of panties worn by female pedestrians - becomes a vocation. Unfortunately, a deal with a porn company comes undone when Yu turns down starring roles, because he admits he's saving himself for a Virgin Mary-like ideal woman.
On cue, the narrative introduces feisty schoolgirl Yoko (Hikari Mitsushima), who loathes men and enjoys beating them up for their moronic attitudes. Yu falls in love and tries to win her, fully aware that exposure of his superstar status will enrage her. Observing the development of this bizarre courtship is religious cult rep Aya Koike (Sakura Ando). Aya not only wants to claim Yoko for herself but aims to convert each of the protagonists to her own spiritual cause. Pointed (and pointless) violence ensues at various intervals, beginning with Aya's castration of her comatose father.