As a student with a mischievous personality and spending too much time taking care of herself, Mizuki's academic achievements are always at the bottom of the class.

To help her progress while not distracting her affecting the class's ranking, the homeroom teacher decided to spend his free time giving extra tutoring at home.

But this did not change Mizuki, on the contrary, it had a counterproductive effect. use. She used her supple body and excellent lovemaking skills to seduce her teacher. Faced with the temptation of being such a tender student, it was difficult for her to stay alert and make wise decisions. The two have continuously had sex on tutoring days after school since that time.