During middle school, Kang Ye-han lost the meaning of life due to the memory of her first love, which forced her to choose suicide. She vowed that there would be no love in her remaining life. Thus, the painful middle school days gradually came to an end, and Ye-han entered high school. There, she encountered a bright and pretty girl, Lee So-na, who had just transferred from another area. As she faced So-na's cheerful and kind demeanor, Ye-han began to forget the wounds of her past love, but at some point, she felt fear at the overwhelming presence So-na had taken in her heart. A love that began anew. Ye-han, unable to bear the confusion and fear, fled from So-na's side. She thought it was over. Love and pain. However, three years later, one day, Ye-han unexpectedly ran into So-na in an unforeseen place, along with So-na's anger as she searched for Ye-han, harboring resentment.