Haeyoon Suh is a scrappy, cute 18-year-old who's attached at the hip to the slick Sungmoo Kang. Sungmoo, the easygoing, compassionate and carefree best friend of Haeyoon's brother, Haeil, has always been the person Haeyoon turns to. For everything. Ever since they were children, Sungmoo's been there to comfort Haeyoon when Haeil goes into overdrive with the discipline, but as the years wore on, the three boys have grown apart. With Sungmoo trying to keep the conflicted Haeyoon at arm's length, Haeyoon can't help but feel his heart breaking. Just when things couldn't get worse, Wooje Kim, the school bad-ass, has set his sights on Haeyoon...