At a certain research facility, there existed a highly abnormal scientist. Brilliant and sharp-minded, he had become one of Japan's most prominent figures in pharmaceutical research. However, he was far more than just an intellectual—his deep-seated hatred and overwhelming desire to dominate women drove him further into madness. This man, feared by society as the "Cruel Doctor," dreamed of conquering every woman in the world. To achieve this, he continued his insane experiments, eventually succeeding in developing an extremely powerful aphrodisiac. Armed with this drug, he joined forces with the evil organization known as the Black Lion Society to begin a battle against defiant women. The first target of this confrontation was "Sarara," a member of SWEET ANGEL and a rising young star gaining widespread attention. Captured by the Black Lion Society, she was forcibly restrained and subjected to experiments testing the new aphrodisiac's effects. Unable to move and struggling to resist with all her willpower, Sarara soon found the drug's effects far beyond imagination. Her body gradually responded against her will, succumbing to the men of the Black Lion Society as they tormented her, eroding her sense of self through overwhelming pleasure. Is this the end of Sarara's fate? What kind of conclusion awaits her?