The Wei Emperor Yuan Zhao, who disguised himself as a man, had been in tit-for-tat with his rival Xiao Shuo since childhood, and the two families had a bloody feud over the throne. Xiao Shuo sent troops to Beijing to serve as regent. The two were in the same boat and wanted to get rid of each other, but they got entangled in an accident. Yuan Zhao accidentally became pregnant with Xiao Shuo's child. From then on, the struggle for power intertwined with the love between his children. Yuan Zhao had to cover up the secrets of his daughter's body and pregnancy, deal with the undercurrents in the harem and the court, and also face the love-hate entanglement with Xiao Shuo. The two struggled between revenge and sincerity, and finally put aside their hatred and stayed together.