In her first year of marriage, Tsukasa lived a seemingly happy life envied by those around her. However, her husband, an elite securities salesman, embezzled secret funds from a powerful underworld client named Sagawa and then vanished without a trace. To erase the resulting debt, Sagawa demanded that Tsukasa—his wife—fulfill his twisted fetish: an obsession exclusively with women bound by rope. Desperate to save her husband, Tsukasa agreed to undergo strict bondage training. The ropes carved intense pleasure into her smooth, hairless pussy, awakening sensations she never knew. Trapped in Sagawa's cruel trap, she gradually transformed into a humiliated female slave, drowning in shame and ecstasy. As she lost herself completely, she was driven to the ultimate edge of overwhelming temptation and pleasure.