Based on a true story, Shyon (Lee Taesung) travels from Korea to broaden his horizons, studying in Japan he meets Yuri (High and Mighty Color's lead singer, Maakii). Both share similar interests in music and sports as they become closer while dealing with language and racial barriers.

Mai, a normal high-schooler, dreams of exciting adventures. When she meets handsome Kagu, her first impression couldn’t be worse. He’s rough and rude, and they seem to quarrel every time they see each other. And yet, as they see each other more and more, Mai discovers Kagu’s softer side, and slowly, they fall for each other. Both are too stubborn to express their feelings and painfully let every opportunity slip by until, one day, everything changes . . .