Mei Yushan (Zhang Miaoyi), the daughter of Prime Minister Mei (Dai Yi), and Xiaodouzi (Chen Siyu), a thief, are two girls with very different personalities and identities. In the process of exchanging lives, they trigger many ridiculous stories. Let's see how Mei Yushan, the daughter of the Prime Minister, uses the reversal charm of "domineering thief" to conquer Nangong Yao (Yang Haoming), the prince of Jixi. Will the cold and obsessive-compulsive prince finally break the prediction of the national teacher Bai Ye (Xu Ke) that the prince's love will lead to the destruction of Jixi, and live up to his country and his lover...