The young empress Kuai Zhaohua's ascension to the throne is not stable, and her relatives and old officials are coveting the imperial power. In order to consolidate her power, she announced the resumption of Xiu Nan's election, but she was strongly opposed by the conservative Taifu Xi Zhongguang, calling the move "out of order". Kuai Zhaohua followed the trend and forced Xi Zhongguang to enter the harem in the name of "blocking the public's mouth". On the night of their wedding, Xi Chongguang's military talisman map slipped from his sleeve, revealing his conspiracy to ally with the vassal king. From then on, the emperor and the empress respected each other as guests on the surface, but in fact they started a game of power in the court and harem, and forbidden feelings quietly grew in the shadow of swords.