Forced to go to a music summer camp, Kwon Minhee can't follow her friends to the beach to check out hot boys there. However reaching there, she was wrong. Cute, handsome, tanned boys are there. She could care less about the beach already.

One certain boy captured her attention, Oh Sehun. Sehun has that mysterious aura around him and that makes Minhee more interested in him. She'll do anything to make him ask her out. 

But what will she do if her target is playing hard to get? 

Well of course, the only way to do is sing!