Prom and graduation are right around the corner and Shim Changmin, the resident recluse turned student council treasurer, is unable to get Kim Jaejoong out of his head. What happens when he catches the eye of the dangerously beautiful rebel without a cause? His life is about to be turned upside down during his last month of high school when the boy of his dreams suddenly waltzes into his life with a coy smile on his face.