Lu Qingci became a substitute carefully raised by the regent. The original ending was that after Bai Yueguang returned, he would be abandoned like worn shoes and die quietly. With the script in hand, she decided to take advantage of the situation. She no longer imitates him, but acts as an "upgraded version of Bai Yueguang" who is more perfect and understands him better, infiltrating his court and taking advantage of his weaknesses. When the real Bai Yueguang returned, what he saw was the scene of the substitute and his sweetheart guiding the country side by side. With a smile as bright as a flower, Gu Qingci tore off her pretense at the peak of intrigue and threw the choice to the man who once controlled her destiny: "Your Majesty, do you want a phantom in your heart or a kingdom in the palm of your hand?" This time, it's time to change the chess player.