An extremely perverted proctologist who can only become aroused through anal stimulation. A young-looking female patient visits the clinic complaining of anal discomfort. Under the guise of examination and hospitalization, the doctor forcibly conducts intense anal examinations, performs enemas, secretly films her defecation, and subjects her to rigorous anal training. As time passes, the female patient gradually awakens to the pleasure of anal stimulation, becoming increasingly liberated through her anal experiences.