Si-woo, who has been learning ballet with his childhood friend Yoo-yeon since childhood, has to quit ballet due to an incident.
Then, one day, a ballet boy Lee Jun transfers to school, and as he watches Lee Jun and Yoo Yeon prepare for the entrance exam for the dance department at the art high school, Siwoo feels strangely wary of Lee Jun...
The three people's first love romance that blooms with ballet!