Zhang Hongying originally worked as a support teacher in a quiet countryside and lived a simple life. One day when she was out, she found the poor baby girl with uncut umbilical cord by the bamboo forest. She planned to give her up for adoption, but she was entrusted to someone else. The kindness in her heart made her resolutely decide to adopt her, even though she suffered all kinds of rumors in the village. The days passed like this, and the adopted daughter gradually grew up. When her child was three years old, Zhang Hongying met Gu Changan. The two fell in love and got married. They lived a happy married life and welcomed their son. Everything seemed so beautiful and peaceful. However, when her adopted daughter was 18 years old, a bolt from the blue struck. Zhang Hongying discovered that her adopted daughter was pregnant, and the person who made her pregnant turned out to be her husband Gu Changan. This huge blow broke Zhang Hongying's heart. She felt that her world collapsed instantly. After a painful struggle, Zhang Hongying finally decided to let go and let her stepdaughter be with her husband, while she took her son away from this sad place. She thought that if she left, the pain would slowly pass. But fate once again showed its cruel side to her, and her son died unexpectedly, which plunged Zhang Hongying into endless pain and despair. Her mind and body were severely damaged and she could not afford to fall ill. Lying on the hospital bed, her body became weaker and weaker, and her consciousness was sometimes blurred and sometimes awake. One day, she felt breathless in a daze. When she tried to open her eyes, she was horrified to find her adopted daughter standing beside her bed, and the oxygen tube had been unplugged... And the tragedy of all this seemed to have been quietly foreshadowed from the moment she picked up the baby girl.