A woman consumed by desire ends up bound, tortured, and driven beyond the limits of pleasure and despair. Hibiki, a woman who obtains top-secret information from a perverted politician and plots to monopolize massive profits, finds herself dragged into a dangerous organization. From that moment, her fate spirals out of control, trapping her in an inescapable nightmare. She is captured and treated as a mere 'pet' for twisted amusement—her entire body tightly bound in rope, completely immobilized. In this helpless state, brutal training begins, stripping away her reason and forcing her to climax in humiliating involuntary urination. While still restrained, her body is mercilessly violated. Pleasure she cannot escape slowly devours her from within. Then comes the ultimate torment—the wooden horse torture. Amid unbearable pain, she begins to lose her mind, yet awakens to her own demonic nature. Relentless, pounding thrusts shatter the boundary between ecstasy and despair, warping her soul. At the end of humiliation and suffering, she is led into a twisted pleasure from which there is no return. Bondage, torture, and awakening—witness now the forbidden hell of restraint as the captive she-devil descends into depravity!