The president of a major corporation, Oshima, decided to hire an expensive tutor for his son who had failed to pass the entrance exam, so as not to make him repeat a year. The monthly fee is five hundred thousand yen. In case of failure, the full amount would be refunded. Michiru Kujou, a super-tutor with an extremely high academic background, was introduced from a tutor referral agency aimed at the wealthy who have absolute confidence in passing. Upon their first meeting, Oshima was overcome with lustful thoughts upon seeing Michiru's overwhelming beauty and spiked her tea with drugs during a break…
