Corporate slave Su Ju'an time-travels to become a little palace maid, and is bestowed in marriage by the emperor to Xie Wei, the Chief Eunuch whose power overwhelms the court. To survive and successfully become an ancient salted fish, she treats the gloomy and ruthless Xie Wei as her leader, cares for him diligently, and pleases him, becoming a little sun in Xie Wei's life. Who would have thought that Xie Wei, the grand eunuch who is above ten thousand people and below only one, actually still retains his male body? In the early stage, he views Su Ju'an as a chess piece sent by the emperor to humiliate and monitor him. Later, he is gradually reformed and redeemed by Su Ju'an, falls in love, and embarks with her on the path of struggle against the Fifth Prince, until finally the two hand in hand stand proudly at the peak of the dynasty.