The protagonist works as a teacher at Aphrodi Private Girls' Academy, a school that specializes in cultivating gyarus. One day, he makes a huge mistake, incurring large losses. The school president shoulders the losses, but to make it up, the protagonist has to become the manager of the girls' dormitory. On top of that, he is also appointed to give guidance to two problematic gyaru students.

The protagonist does his best to advise the two gyarus with their studies and life management, trying to get them to better their ways, but both refuse to cooperate unless the protagonist listens to their naughty requests.