Haechan is your enemy at school, you two always tease and tease each other, every day, the students at your school seem to be tired of seeing you always fighting. But, you and Haechan were dating on a dating app, you two didn't recognize each other on the app because you both used pseudonyms. On the application, you often make out, via text messages of course, until finally the two of you decide to meet at a cafe. When the two of you arrived at the cafe, you were both really surprised and couldn't believe it, how could your online boyfriend turn out to be your enemy?