Welcome to Kinsei Private School - a respected, all-boys institution where it's rumored ninety percent of the student body is gay (or bi). For the straight Nanase, this means constantly evading day-to-day advances from his love-struck classmates. Just what is a "normal" boy to do in this sea of "abnormality"? Enter Heiji, who proposes a unique solution to his sempai - namely, that he and Nanase pretend to be a couple in order to deflect all the unwanted attention. Sounds like a good plan, except pretty soon Nanase finds himself performing all manner of embarrassing acts in order to keep up the "ruse." What's wrong with this picture?! Could Heiji's extraordinary offer simply be his way of hiding a very ordinary crush?