rena miyashita, who discovered the organization of the evil pharmaceutical company that is developing dangerous aphrodisiacs and terrifying the women of the world. rena, who tends to act impulsively with a sense of justice, ignores her boss's orders and starts investigating alone. she infiltrates as an advertising copywriter, but her true identity is revealed... she is administered a super-powerful aphrodisiac that is still under development, her body is made to feel unbelievably good, and she is gang-raped...