Hye Shil used to date Hyung Gu but has broken up for his ambition. She got married and had a daughter Min Hi, but loses her husband soon. Hyung Gu blames himself for her misfortune and tries to rebuild their lives together leaving Se Hwa. However, he finds out that he has cancer and disappears in despair. Hye Shil hears the news and meets Se Hwa to discuss his treatment.