.Sangho's deadline for his PhD thesis is looming near and his future is looking murky. The highlight of his day is smoking on the rooftop of his school building, where, for a few blissful minutes, he can forget about his troubles. But his precious cigarette break is ruined one day by a guy named Hakdo and his bawling ex-boyfriend (who also happens to be Sangho's ex-ex-ex-boyfriend). What's more, Sangho later learns that he and Hakdo have not one but many exes in common. This gets them talking and the two agree to have some fun, casual sex. But little does Sangho know that Hakdo's idea of fun is very different from his...