Rie, a 23-year-old who claims to be into SM, arrives at the training room. Though she says she enjoys SM, she clearly has no knowledge or experience. The session begins with public urination as a form of humiliation, but the director scolds her, saying, "You've got pubic hair, don't you?" and shaves her completely bald, leaving her terrified. Seeing her fear, the training intensifies mercilessly—blowjobs, cock cleaning, piss drinking, and harsh bondage using iron maiden devices. Her ignorance and vulnerability only heighten the intensity of the story.