Her live had never been so hard. She's not poor, just average. She aces in school, being one of the best students her teacher has ever had. But what bothered her is that boy, Jeon Jungkook, who can't stop pestering her since she entered school. She tried her best to ignore him, but like a dot on radar, he always find a way to , everywhere. 

Aside, Jungkook didn't hate her. Not at all. He just likes how Ae Rin acted towards his words, and how would she stomp her feet in frustration in response. It might sounds weird, but Jungkook finds her actions cute for no reason. And with teasing as one of his habits, he couldn't help but laugh everytime he teases her.

Well, at first it was just a boy teasing a girl. It WAS. How if, both of them start to feel different towards one another?