In a certain research institute, there lived a researcher who was slightly, just slightly different. A brilliant mind—number one in Japan…? No, number one in the world when it comes to pharmaceuticals…? But he harbored a deep hatred for women? A man with a strong desire to conquer—yes, that's the story of Dr. Cruel. Dr. Cruel harbored an inferiority complex towards all women in the world and planned to one day conquer all women. The doctor's continuously developed super-powerful aphrodisiac was finally completed, and he joined forces with the evil organization Black Lion to challenge those willful women. The Black Lion immediately set a trap, abducting "Sara," the girl recently mentioned in Sweet Angel, and taking her to a certain place under the pretext of experimentation… While restrained and unable to move, Sara was fed the newly developed super-powerful aphrodisiac. Although she resisted with strong willpower… her body reacted to the super-powerful aphrodisiac developed by Dr. Cruel, and she was further toyed with and ravaged by the men of the Black Lion, surrounded by terrifying pleasure, ultimately collapsing. What will become of the beautiful girl Sara? !