Jang Wonyoung is a 14 year old girl who has been through lung cancer since she was 7. She is the class topper and always wins awards. Although she is smart, she is a quiet person and she's not popular. One day, a boy named Park Sunghoon came to Wonyoung's life bringing light. Wonyoung fell in love when she saw Sunghoon. Can Wonyoung confess her feelings to Sunghoon? If she can, will Sunghoon accept it?