The protagonist, Onoda Seiichi, is assigned as a temporary teacher at the private Hakogawa Academy. However it was a problematic school, commonly known as “Pako School” due to its violent disturbance of morals. Seiichi is given a condition by the principal to be officially employed as a teacher:

——Rehabilitate all the 'problem children' who disrupt the school's discipline

The students considered problem children are all beautiful girls with quirky and slutty personalities!
Will Seiichi be able to rehabilitate those troublemakers amidst the erotic happenings that come one after another?

[Translated from DMM]