Sang Ning has been married to the Pei family for fifteen years. She has devoted herself to taking care of her son Pei Siyan, who was born with congenital heart disease, and worked hard on the family all day long. But she comes from a mediocre background, and has been coldly disliked by her husband Pei Yuan for many years. She has been despised by her husband's family, and her son has been instigated by others and gradually alienated her. On the day of the college entrance banquet, she was injured in a car accident and was late for a while. Her son deliberately made things difficult for her for a long time. Sang Ning was completely heartbroken and decided to divorce. She returned to her hometown of Nanzhen and became a rural art teacher. She regained her love for painting and found her true self. After Pei Yuan and his son lost her, they were full of regret and tried desperately to try to get her back. Sang Ning had already let go of the past and devoted himself to education to pursue his ideals. In the end, the two of them were left with endless regret.
