The son of a famous pianist, Kang Jun-san, arrives in Chuncheon. As an exceptionally talented student, he is welcomed by his classmates and teachers, but he remains quiet and reserved. Due to a serious disagreement with his mother, he believes that no one loves him. Yoo-jin and Sang-hyuk are close childhood friends, and although Sang-hyuk desires more, Yoo-jin treats him like a brother. One day, on his way to school, Jun-san encounters Yoo-jin on a bus and falls in love with her.