
YN and Nayeon were classmates back in high school. Two different personalities, Nayeon is a bully who orders YN for her own benefit through his attribute of having an exceptional intelligence and social awkwardness with people. 15 years later, they met again unexpectedly, got introduced to their improvements over their lives. As they try to move forward from their horrible past, a turn of events pushes them to revisit and realize their regrets.