A few years ago, Sara Uruki was overwhelmed by pleasure due to an aphrodisiac, and with hatred in her heart, she swore revenge against the Black Lion Society. Driven by that vow, she began her career as an elite narcotics investigator—until her fate took a tragic turn. Drawn into a series of disappearances among fellow narcotics agents, and watching her comrades fall one by one, Sara's frustration and rage grew stronger each day. One day, acting on a lead from a trusted informant, she decided to infiltrate the Black Lion Society's hideout alone. But it was a trap! Helpless and restrained, she was subjected to brutal physical abuse, and the very illegal substance she once hunted was forcibly administered into her body! Humiliation, shame, and endless waves of pleasure torture took complete control of her mind and body. Bolts of ecstasy, intertwining with memories of the past, pierced through her, triggering repeated, unstoppable orgasms no matter how hard she resisted. As her consciousness began to fade, her mind and body were dragged deeper into a hell of pleasure. What will become of Sara, the elite investigator who swore revenge?