Investigator Ai grows angrier by the day as fellow narcotics agents vanish one after another. After receiving information from a familiar informant, she raids the Black Lion Society hideout alone—only to discover that everything was a carefully prepared trap. Immobilized and restrained, she is groped against her will and injected with the very illegal drug her team has been pursuing. Humiliation, sexual abuse, and forced orgasms continue without end. She desperately resists, but climax after climax strikes in defiance of her will. Her consciousness begins to fade, yet the torture of pleasure never stops. The fate of this strong, unyielding elite investigator hangs in the balance as both her body and mind approach their breaking point.