Ryoka University Hospital maintains a prestigious reputation as an all-female medical facility, but behind closed doors, it operates a depraved nocturnal service for VIP patients. Student nurses, including the newly initiated Minako, are coerced into fulfilling the extreme sexual fantasies of the elite in exchange for career security. Through a series of degrading rituals and fetish-driven "treatments," these women are stripped of their autonomy and transformed into devoted sex nurses.
Beneath the prestigious facade of Ryoka University Hospital lies a dark system of submission and sexual servitude. Nurses and students, including Minako and Yuka, are subjected to a series of degrading "lessons" and humiliating rituals designed to break their will and transform them into obedient sexual slaves for the hospital's elite.