A female body, completely immobilized by ropes and iron, becomes the playground for men's sexual desires. Exposed breasts and genitals are slowly devoured by fingers and tongues. There is no escape from the pleasure brought by relentless teasing. Driven by a body that has become a mass of frustration, she forgets she is merely a sex toy and begs for insertion. This is the hardest experience in Minami Hatsukawa's history—a prison of pleasure through endless restraint. Please enjoy her never-before-seen expressions as she collapses in orgasm, her face distorted by humiliation and shame.