Jung Hana and Kim Myungsoo had been best friends since the third grade. Hana comes from a loving family while Myungsoo was brought up in the orphanage. Hana was outgoing while Myungsoo was introverted. Hana believed it was love at first sight while Myungsoo didn't believe in love. Hana talked too much while Myungsoo didn't talk at all. But Hana didn't care. She knew Myungsoo was listening. As long as he was by her side, she was happy.

But what happens when the new girl, Lee Mi Yeon, gets in the way of their friendship? Hana's hopes of being Myungsoo's girlfriend were shattered when he told her that he and Mi Yeon began dating. And what else would happen when the coolest guy in school, Nam Woohyun, begins to get involved in Hana's life? Hana's wonderful last year of high school will turn out to be the worst year of her life when Myungsoo decides to cut all ties with her. Will she be able to get Myungsoo back into her life or will she lose him forever?