Ye Zhao and Ye Ruoyao respectively married a poor scholar and Prince Xiao Yan of Zhenbei in their previous lives. After being reborn, they returned to the day of forced marriage, and Ye Ruoyao changed her parents, rewriting her fate. On their wedding night, Xiao Yan suspected that Ye Zhao was an undercover agent. During the trial, his old illness recurred, and Ye Zhao saved him. On the day of returning home, Ye Zhao was slandered by Ye Ruoyao and her stepmother, and Xiao Yan appeared in time. To save Xiao Yan from house arrest, Ye Zhao went up the mountain to seek help from the emperor's mentor Wang Bo'an. His kindness moved him and he successfully rescued Xiao Yan. The second male failed the imperial examination and went insane. The provocation from the noble concubine was resolved by Ye Zhao, while the third female challenged Ye Zhao. Despite using modern technology, she was unexpectedly defeated and later separated by Xiao Yan. Ye Zhao and Xiao Yan opened a pharmacy to provide free medical treatment and live a happy life together