For nineteen-year-old Rika, cosplay is her life! And as now she's finally out of high school she must bear the weight of an ambition she can’t share with anyone... One day, she meets a high-school student who she seems to get along with on a dating site, and before she knows it, she’s arranged to meet up with him IRL. The only catch is that he still thinks she’s in high school herself. He's younger than her, but he also seems to be her type... Can she really dive into a relationship while she’s still cosplaying?!
Rika can't wait to embrace her lover Hajime after too much time away from him—and she's got the perfect "tools" to seal the deal, too. But this rose-colored love life turns dark when Hajime is in danger of having to repeat a grade—and then their friend Arata ditches an important test out of nowhere! Does Professor Rika have what it takes to save these two not-so-ace students?!