After watching the original TV series Echo, I realized that Xu Shanchuan's wife didn't care about cheating. Because the couple parted ways, Xu Shanchuan was a groupie, and Xu Shanchuan's wife Shen Xiaoying also cheated on Xu Shanchuan.
Shen Xiaoying's lover is a fitness instructor and a muscular man. They have children. Xu Shanchuan's youngest daughter is the child of his wife and lover, because before her daughter was born, Shen Xiaoying paid a doctor to fill out the birth certificate. The heartless Xu Shanchuan had no idea that his daughter was not his.
Plot understanding
Although Xu Shanchuan is very interested in Xia Bingqing, he knows that his marriage with his wife has existed in name only. But for the sake of children, he did not divorce Shen Xiaoying, but married Xia Bingqing. Before, he forced Xia Bingqing, and then said he wanted to divorce her. Later, Xu Shanchuan understood his situation. He can't divorce, and he doesn't want to divorce. Destroying the original state of this family, Xia Bingqing became a problem, because Xia Bingqing said that he had evidence to prove that Xu Shanchuan forced him.
In fact, Xia Bingqing, a silly child, has no conclusive evidence. On the day of the activity, he was too confused. Xu Shanchuan failed to keep his promises many times, so he didn't keep any evidence at all. Otherwise he wouldn't be so passive in front of Xu Shanchuan. However, Xu Shanchuan felt guilty. She thought that if she didn't marry Xia Bingqing. There was evidence that Xia Bing would kill her, so he asked his nephew Xu Haitao to have her killed. However, he solved Xia Bingqing, ostensibly to maintain a family, but in fact it became a joke.