Piano players Yoo Seul and Jin Mok compete to be the best while holding a decade-old grudge. Pole vaulter Cha Shik attempts to break his record, but accidentally injures himself

Cha Shik becomes Yoo Seul’s helper while studying to enter her school. Jin Mok asks Yoo Seul to become friends

Yoo Seul and Cha Shik train for the contest. When Jin Mok can’t get out of his slump, he starts to think about quitting