Shin Yeon-jae

High school student Yeon-ju and Eun-chae were rehearsing for a joint performance at the school after school ahead of the school festival performance. Then suddenly, a baseball that Hee-jun threw badly from the playground flies in through the window. Hee-jun comes into the classroom looking for the ball and the Yeon-ju tries to find Hee-jun's ball.

Choong Gil, who has a crush on Yeon Jae, listens to advice from his ego.