Elite investigator Ami grows furious as fellow narcotics agents vanish one after another. After receiving information about the Black Lion Society, she raids their hideout alone—only to discover it was a trap. They dose her with the same illegal drug she was investigating, restrain her, and subject her body to degrading, relentless stimulation. Ami fights desperately, but the unending waves of pleasure force her to climax repeatedly until panic sets in. The story closes with the tough agent’s fate left uncertain.