Shen Ninghua, the legitimate daughter of the general, entered the palace as a royal sister and was granted the title of concubine, but she didn't know that she was just a substitute for Bai Yueguang in the heart of Emperor Xiao Che. Xiao Che has the ability to read minds and see through the schemes of countless palace concubines. He only relaxes his vigilance towards the "docile" Shen Ninghua, but treats her coldly in every possible way due to the prejudice of the stand-in. The hypocritical queen, Green Tea Zhaoyi, took advantage of the agency's trap. Shen Ninghua shed her disguise and fought back with wisdom. She also discovered the truth about the double and decided to leave the palace. When Xiao Che suddenly wakes up and realizes that the superpower only reflects her figure, the road to pursue his wife has already been full of thorns. Let's see how the imperial concubine will find her own counterattack between the palace wall and her true heart.