Risa, a researcher at a pharmaceutical company, had her husband cause significant damage to the company. To make amends, Risa was made to participate in an experiment led by Ichijou, the chief researcher. The experiment involved explosively heightening sexual desire, destroying reason, and controlling subjects as desired. Despite resisting, Risa couldn't fight off the effects of the aphrodisiac. She was ordered to do embarrassing things; her mind rejected them, but her body wouldn't listen. Trembling with humiliation, her flesh still sought pleasure.
