Yui had been strictly disciplined and was especially strict about romantic feelings, but she is put under ○○ by the PE teacher and becomes a lovey-dovey couple! Even during dates, sexual harassment and sex anywhere without caring about the place are normal! Even so, because of the ○○ Yui has come to love the PE teacher, so no matter what is done to her she feels it and cums! She is only an ○○ girlfriend on weekends. But her feelings are always like those of a dear lover, and while holding some doubts Yui ends up accepting him...!