Mizuki, an investigator who has completed numerous infiltrations, was tasked with infiltrating a trade in aphrodisiac oil. It seemed like an easy mission, but she was caught and detained by a dark organization. What awaited her was pleasure torture. "Rescue will surely come..." she hopes, and endures desperately, but the more she endures, the more pleasure she feels, and she climaxes easily. "It's stronger than when I was training." She is trained with a dick in an endless orgasm torture, and her slender body twitches and convulses as she climaxes. After all, she is just a woman. Investigator Mizuki was nowhere to be found among the female slaves who had fallen into pleasure.