Fantasy: I Died Young, and the Empress Forced Me to Become a Human Being

Su Mu traveled through time into a comic book called "Ten Thousand Races Standing". Because of his father's great achievements, he was summoned to the capital by the empress to serve as a hostage. However, Su Mu, who was familiar with the plot, knew that the dynasty would perish in five years. So I thought, just be a proton and let the five years pass. But with the proton in front of him, Su Mu felt something was wrong. This empress seems to be too indulgent towards herself. No matter how much trouble she causes, the empress will help her settle it, and even take the blame for herself. Su Mu also liked to hear this, so he became more and more unrestrained. In the blink of an eye, the five-year period has arrived, and Su Mu strangely discovered that not only was the dynasty not destroyed, but it became stronger? What's even more wrong is, when did the empress become his woman?