Yu Zhaoning married into the Marquis of Jing'an for three years, and filled the family with his best years, medical skills and dowry. She treated her mother-in-law's old illness, took care of her husband Pei Jingchuan's accounts and made up for the losses, and maintained business lines and relationships for the Hou family. Everyone was used to her thoughtfulness and therefore believed that she would never leave. Until Pei Jingchuan's Bai Yueguang and Yan Qingrou, who had been missing for many years, returned to Beijing. Live in her yard, take away the medicine left by her mother, and occupy the place that belongs to her. The most cruel time was when Pei Jingchuan forcibly took away Yu Zhaoning's only Yuan Yuan Dan in order to save Yan Qingrou. Yu Zhaoning had an unstable fetus and lost the child that night that her husband had not known yet. The next day, she didn't cry. She just placed He Li Shu in front of Pei Jingchuan: "Give her the medicine, and you give it to her too." Everyone was waiting for her to bow her head and come back. But she turned around and took back her dowry, prescriptions and business name, and started over from an inconspicuous little medicine shop. She rescued pregnant women, uncovered counterfeit drugs, eradicated epidemics, and also uncovered the old military drug case behind her parents' "accidental death" bit by bit. At the same time, Xiao Chengyuan, the cold-faced regent who was accidentally rescued by her, gradually discovered that this woman did not need anyone to live for her, all she needed was someone to respect her choice. Later, Pei Jingchuan finally married Yan Qingrou as he wished. The whole city was waiting to see Yu Zhaoning's joke. It happened that on the same day, the ceremony of welcoming the bride at the Prince Regent's Palace passed through the long street, and the red makeup of ten miles overwhelmed the Marquis's wedding sedan. Pei Jingchuan opened the car curtain and saw Yu Zhaoning passing in front of him with a phoenix crown on his body.