A story about an ordinary  22 years old girl, Im Yoona and Lee Donghae , a son of a 5 stars hotel president. 

A yoonhae and changsoo fanfic . The love and friendship story between a cheerful girl and a loner. She's the first girl he opens his heart and he's the first boy that made her heart flutters. She detest him and he despise her. They always fight. But what happens when he started to fall for her carefree atitude and she still thinks him as a jerk. Will she open her heart for him?