Elite doctor Souichirou Kuwabara is haunted by the disappearance of his former love, Nanase Ren. Upon starting a new position at Sei-Katorea General Hospital, he meets Mana, a young woman who bears a resemblance to Ren. When Mana attempts to offer him emotional support, Kuwabara's repressed obsession turns violent, leading him to brutally force himself upon her as a substitute for Ren, all while being secretly monitored by the hospital's mysterious administration.
Dr. Kuwabara is coerced by the hospital administration into overseeing a sinister "special ward" designed to provide sexual services to wealthy clients by "breaking in" the nursing staff. Haunted by his past as a test subject for the sadistic Hirasaka, Kuwabara struggles with his own trauma and a volatile desire to reclaim his bond with Mana, leading to a desperate attempt to outdo Hirasaka's cruelty.
Kuwabara-sensei accepts a position at the Special Ward, demanding full authority over the staff and utilizing surveillance tools to monitor the nurses. He begins implementing his own provocative methods, specifically treating a patient named Sayuki who suffers from stress-induced spasms. By subjecting her to a sexually explicit "exposure therapy" designed to desensitize her to the gaze of others, he cures her condition and secures her absolute obedience.
After accusing Nogami of theft, the manipulative Kuwabara-sensei uses the threat of professional ruin to coerce her into a sadistic "treatment" program. Through a series of humiliating and abusive trials, he breaks her will and forces her into a submissive role as his personal, obedient doll.
Dr. Kuwabara unveils his "Special Ward" to wealthy clients, showcasing a dehumanizing "Female Flesh Feast" where nurses are treated as living platters. He further exerts his control by tricking Mana into a fake romantic date, only to subject her and Karen to public degradation and sadistic torture. As the nurses are broken through a series of cruel competitions and punishments, Kuwabara solidifies his absolute dominance over them.