Die if you aren't a virgin

On the first day of his transfer, Gyu-tae fell in love with Seok, who greeted him warmly. He dreams of a "real" first love story with him, but soon he hears a bolt from the blue. "I think men who are not virgins should die". Shocked by Seok's strange love philosophy, Gyutae, who had been in a crush for years, one day witnessed Seok receiving a ring from another man...