The story begins at their junior and senior year at Seoul National University, Park Ryeowon lives in an apartment with her older cousin, Chanyeol. Across the hall, her two close friends, Kim Jongin "Kai" and Oh Sehun also resided. And two floors up, you have Do Kyungsoo, also a close friend of theirs. Everyone got along well, they all knew each other. But there only girl has been keeping secret ever since they started their college lives.

It was a secret that she knew could affect everything, including their friendship.

"See? It's always difficult when feelings are involved. I hate feelings!"

"Can't you see? It's always been her!"

thanks to harachan for the poster