Yuna and Lia have been best friends for a long time. Yuna secretly likes Lia but doesn't want to ruin their friendship by confessing her love. As she battles herself on what to do, Lia starts dating one the most popular guys in school. What will Yuna do to win over her best friends love?

Chaeryeong and Yeji are both in their schools famous track teams, they're both the best runners and team captains. To the outside world they seem to hate each other and be extremely competitive. But in the locker room they're best friends or maybe even more...