Despite her aspirations to become a pianist, Suhyun, a high school senior, constantly falls short compared to her peer, Yujin. In order to get accepted into her dream music college, Suhyun seeks a private lesson from Yujin's piano tutor. However, the tutor tells her to abandon the audition piece she's spent months preparing and undermines her self-esteem, causing her doubts about him to grow.