There was a researcher at a certain institute who was a little, just a little, unusual. Brilliant mind, and perhaps the best in Japan when it comes to pharmaceuticals...? No, perhaps the best in the world...? This is the story of a man with a strong hatred for women and a fierce desire for conquest—yes, a man like that, Dr. Cruel. A cruel doctor at a mad torture laboratory, who constantly feels inferior to all women in the world and plots to one day conquer all women in the world. The super-powerful aphrodisiac that the doctor had been developing was finally completed, and he joined forces with the evil organization, the Black Lion Society, to take on the arrogant women. One day, the professor encounters a sassy, beautiful girl named Shizune in town, restrains her, and takes her to a certain location as part of an experiment... Shizune is forced to drink a super-powerful aphrodisiac developed by the doctor while she is restrained and unable to move! Faced with the super-powerful aphrodisiac, Shizune's body was powerless to resist and reacted, and as she was toyed with and abused by the men of the Black Lion Society, she was enveloped in tremendous pleasure and her sense of self crumbled! What fate awaits the beautiful girl Shizune, who has gone too far and surpassed her limits?!