She is the empress of Anguo. Although she is only fifteen years old,
He is the emperor of Anguo. He is already thirty years old, but he insists on making a woman fifteen years younger than him the queen. Many people say that the queen's appearance is so similar to that of the emperor's favorite concubine.
He is a prince who is not favored, because the emperor will not pay attention to a woman who is neither his love nor a woman with a prominent family background, so he treats her son equally. But by chance, she took a fancy to him and made him her daughter-in-law. He was only eight years old at that time. However, he discovered by chance that 'she' turned out to be 'him', and discovered a secret that no one knew, which allowed him to gain his love.