Xiao Jingyuan is the eldest son of Prince Jing'an of the Dajing Dynasty. On the surface, he is a well-known "hep-controller" in the capital. He obeys the advice of the eldest concubine, Su Wanqing, and even reports in advance for taking concubines and attending banquets. He is ridiculed by the clan's descendants and courtiers and called a "henpecked loser". Even his father, Prince Jing'an, is disappointed in him. In fact, Xiao Jinyuan is very talented and resourceful, secretly cultivating forces and strategizing. He seems to be obedient to the crown prince, but in fact, he is going in both directions - Su Wanqing was born as a general, smart and decisive, and holds some military power. She is his most trusted ally, and the two work together tacitly. Together, he uses the guise of "strict wife control" to hide from others, secretly clean up the traitors in the court, thwart the prince's plot to seize the heir, and finally help his father, King Jing'an, ascend the throne.