Tsuchimikado Hijiri is a man playing the role of the perfect student council president, with his good looks and excellent grades in both school and sports. After school, he witnesses his usually quiet female classmate Sado Mitsuki, tormenting their teacher Tamura in a very sadistic way! The perfect student council president gets caught up in Sado-san's secret fetish!

This is an unusual romantic comedy for those of you who have things you can't tell others!

Haruma Sakuraba's childhood friend Shuuji Inukai was a cut above him in every way imaginable, living out the glamorous life bestowed upon him. Haruma, an unassuming salary man, has lived his every day clutching onto his inferiority complex, existing only in Shuuji's shadow. One day, Haruma coincidentally met Shuuji's wife, Reika Sumi, who Haruma had always secretly admired since his high school days. With feelings of envy, jealousy, and more, a "secret" is born from Haruma's repetitive days.

Dear Sa-chan, if only I’d had sex with you that time, perhaps I wouldn’t have wandered down this disastrous path. A story of true love and it’s downfall, brought to life by an unconventional protege.