Chaeyeon is a famous dance teacher and former choreographer who lives only for her own work. Without a family, she carries psychological and physical marks from a dark past, which she hides from everyone, making her a closed, bitter and cold person. On a day like any other, an aspiring dancer, Eunbi, enrolls in the school where Chaeyeon teaches, and as time passed by, a great friendship arises between the two and the teacher has a new perspective on her own life. But at one point, Chaeyeon's past returns to haunt her. Will she able to handle it?