Lou Xingyin and Yan Feifan have been married in secret for three years and have never made it public. After Yan Feifan's brother passed away, he left behind his widowed sister-in-law Xia Yubing, who was still pregnant with a posthumous son. Yan Feifan took care of Xia Yubing out of affection, but she had ulterior feelings for Yan Feifan and even pretended to be depressed. Lou Xingyin deliberately pushed Lou Xingyin and caused her to have a miscarriage, so that Lou Xingyin was completely disappointed with Yan Feifan and chose to divorce. Yan Feifan also learned about Xia Yubing's actions at this time and sent her directly to a mental hospital, hoping to start over with Lou Xingyin. The unwilling Xia Yubing escaped from the mental hospital and wanted to harm Lou Xingyin, and eventually died in Lou Xingyin's arms.