The Kamiki couple have just moved into a luxury apartment. One day, after they've finished unpacking, the couple is invited to a party by the residents of the apartment. The men, who have been playing with women as sex toys, add aphrodisiac fluid to Rei's drink at the party and have sex with her without her consent. She wants to resist, but it feels so good she can't stand it... Before long, Rei becomes addicted to the pleasure of drug-induced sex...