In the near future, the Japanese authorities decide, as part of the fight against the rising crime of violence, that pretty girls in educational institutions are obliged to please boys, anywhere and everywhere, at any whim, and that the boys, in turn, if they want to continue to study in these institutions, are obliged to do community service work. And so in one of these schools, there is a boy who is in love with one of the girls of this school, namely Shichijo Reika, a beautiful, intelligent head of the class, a finalist in the national Olympics, martial arts master, the first in everything in general, as well as in the satisfaction of oral sex. And so the protagonist eventually gets lucky, and for certain services during his studies, he gets Reika on loan, as a reward.