Meizhu (Liu Weiwei) and her husband Xiaolu (Zhang Jiayi) have been divorced for many years. She married Lao Xie (Cheng Taishen) with her daughter Hehe. Xiaolu also reunited with stewardess Dong Fan (Yu Nan) to form a new family. Hehe was diagnosed with leukemia, and ordinary chemotherapy did not control the disease well. In order to save Hehe, Meizhu found Xiaolu and proposed to have another child with him. Xiaolu reluctantly agreed. After three failed artificial insemination attempts, Meizhu decided to have a real child with Xiaolu. The families of the two were also involved. The four people were subjected to huge tests and faced a dilemma in the face of choices.