Song Yoon Joo. She always there. The moment she fall in love at first sight with her crush,she know that she can't let go of him. That's why she made a decision to always stay besides him. And that's irritate Park Chanyeol. She always have a tactic to get his attention and doesn't care anything as long as she wins him. But one thing she doesn't realise is the more she tries,more pain she will get. Until....she gives up!