Song Minyoung, 18 years old, currently studying in the top school in Korea where all the children of CEOs goes to. Her best friend is Yong Jaeeun , and Minyoung has a crush on her brother , Yong Junhyung . Anyway , Minyoung is a very positive girl , wherever she go she puts on a smile (its not fake) and she dont hate anybody. she's enemies-free. okay hang on , maybe not. CAUSE SHE FREAKING HATE KIM JONGHYUN ! and when she sees him , her :) becomes a :( within seconds ... One day , they found out they'd an arranged marriage the minute they were born. are they able to survive thru as couples ?