Shinji, the only man responsible for maintaining order at the academy, and Hana handle Shinji's sexual urges. However, it's no longer just a task they've begun to enjoy the act itself!

One day, taking advantage of Hana's absence due to a cold, Chika, who loves erotic things, pressures Shinji using her relationship with Hana as leverage! Unable to resist Chika's advances, Shinji unleashes his overflowing lust!