Nikaido Lumi was conducting an undercover investigation into an antisocial group and had set up wiretapping. However, she was caught by her cunning adversaries. Facing Lumi, who desperately refused to reveal her true identity, was a form of pleasure torture. Enduring shame and humiliation, she fought with the desperation of someone facing death. Yet, the relentless torment, which provided the strongest aphrodisiac and induced madness, began to transform the robust body of this woman into that of a depraved sex doll, experiencing incredible orgasms over and over again, descending into depravity.