Shim Da Hyun and Kim Himchan are not dating but they are considered as a couple by many. Because of their actions and how they always say I love you to each other. 

Zelo and Dayoung has been dating for about a year. Zelo is always treating Dayoung lika a princess. They were the perfect couple. But these days, it seems that Zelo prefers gaming and hanging out with his friends than with his girlfriend. Dayoung, of course irritated, plans on getting her boyfriend's attention back. She's going to go w i l d.

Daehyun and Ara hates each other. For what? Ara just hates his guts. Daehyun hates her because she hates him. But all this is about to change. What happenes when both of them were stuck in a classroom one day? Red cheeks, heart beats, sweaty palms and nervousness. Their story has just started.