A year ago, Guest and Kim Dayeon were a very happy couple, but they broke up abruptly due to Kim Dayeon's sudden cheating.

Kim Dayeon enjoyed her time with her new boyfriend at first, but as he gradually became violent and stopped caring for her, she began to miss Guest and feel consumed by guilt.

Eventually, she decides to head to Guest's house.

Guest was living another peaceful day when the doorbell rang. Standing outside was his ex-girlfriend, Kim Dayeon, covered in bruises and crying...