This work compiles submissions published in the SM magazine "Mania Club." The contributor, Nana (pseudonym), became a masturbating pervert after an incident with her real older brother during her second year of middle school. From that experience, she never pursued love or marriage, and at age 24, married a man introduced by relatives—remaining a virgin on paper throughout her life. However, her true nature is uncovered by her husband's best friend, and she begins a life of being trained by him. Lent out to complete strangers, she awakens to the pleasure of being a bottom-tier sex slave, all kept secret from her husband. In Scene 1, she is disciplined as a sexual livestock using a cute white anal plug with a tail, forced to drink her own urine from a cup. Struggling, she eventually gags and spills it, realizing she's still inexperienced as a female slave. In Scene 2, her vagina is tormented by an ultra-large dildo bigger than a man's fist, stretching her cunt until it becomes capable of fist-fucking. In Scene 3, she's subjected to water torture in the bathroom, her pussy and asshole heating up and becoming hypersensitive—her body involuntarily convulsing from the water's stimulation, caught in a mix of pleasure and pain. In Scene 4, despite receiving multiple enemas in the bath, once tied to a chair and having her anus played with, she loses control and leaks a large amount of shit, her body completely uncontrollable. In Scene 5, on the bed, her anus is loosened by vibrator stimulation, opening so wide the vibrator head nearly gets swallowed inside. Scene 6 shows her fixed onto a giant dildo mounted on a table, her hips sinking down onto it—amazed by its thickness, yet her anus slowly engulfs it, demonstrating the results of her training.