In Minase's room, Taki Minase is laying in bed with his art professor Hiroko Takashiro, following an intense love making session they shared shortly before. He asks her if she has trouble sleeping, but Takashiro, still under the influence of an overdose of aphrodisiacs, becomes aroused and teases her student into having sex with her once again. As the two passionately have sex until the break of dawn, Minase's girlfriend Rika Shiraki is furiously standing outside his house. Brooding a vengeful plan.