Li Weiqin was the fourth grandson of Emperor Daizong of the Li Dynasty. He was born in Jinzhou. When he was five years old, he was brought back to the imperial capital by Prince Su and established as the son emperor. He was determined to be a benevolent emperor. To this end, he gave up his female companion Mu Zhen'er, who had been with him in the palace for nine years, and doted on Huo Xin'er, the niece of Queen Mother Huo, who was four years older than him. In the 19th year of ZTE, a girl Pei Ningyue who looked exactly like Mu Zhen'er walked into Li Weiqin's life. Li Weiqin only regarded Ningyue as a pawn for him to test the Queen Mother Huo, Prince Su and others. It was unimportant and dispensable. While Ning Yue was pregnant, Mu Zhen'er returned to the palace and received Li Weiqin's protection. Although Ningyue understood that Li Weiqin would not trust her sincerity, but when she realized that the Pei family could not collude with Prince Su, which was one of the main reasons why Prince Su wanted to replace Li Weiqin as emperor, she resolutely chose to take poison and die, buying time for Li Weiqin to weaken Prince Su's power. After Ning Yue died, Li Weiqin vaguely felt that he might have fallen in love with Ning Yue. Pei's father learned that Ning Yue was going to take poison to gain righteousness, so he replaced the deadly poison. With the help of the miracle doctor, Ning Yue came back to life. Five years later, Ningyue is determined to return to Li Weiqin. After some hard work, Li Weiqin and Ning Yue met again, and Ning Yue overcame her fear of Li Weiqin; Li Weiqin also understood Ning Yue's original intention of choosing to take poison and die, and the two truly fell in love with each other. After Li Weiqin truly took control of the imperial power, he worked hard to resolve conflicts in various aspects and improve people's enthusiasm for developing agriculture. The Li Dynasty took on a new look.