Park Wan Eun. Your typical high school boy. Actually, not. He was the cutest boy in school. The girls didn't have to take a second glance at him to realize they were in love with him. He was everything you could look for in a guy. Cute, nice, gentleman, everything. His life was as usual at that time.. Until his mom got into an accident. His life changed completely after that tragedy. Premonitions. Those were the things that haunted him. He couldn't get rid of them, no matter how many times he's tried, and now he's a loner at school since he always wants to be alone. No person would dare go near him because he always had a dark aura around him. He told his friends to leave him alone. But then comes along a beautiful girl. Lee Ae Chan. Typical high school girl? Yes. In the present. But in the past, she was just like Wan Eun. They were in the same classes all of their lives, but they were never aware of each other's presence. Both didn't know the other existed.. Until the day their destinies cross paths and they need each other more than ever. Who will change who's life forever? What will happen then?