Murong Xihuang, the most favored sixth princess of the Great Xia Dynasty, was forced into a desperate situation during a palace coup and accidentally traveled through a mysterious jade pendant to the modern city a thousand years later. She woke up in the home of a poor screenwriter named Shen Yu, mistaking him for an assassin with evil intentions. Facing this bizarre "illusion", she went from being wary and frightened at first, to slowly accepting the reality of the collapse of the dynasty and the changes in time and space with the help of Shen Yu. With her royal pride and absolute control over real history, court etiquette, and traditional skills, she not only helped Shen Yu rewrite his historical script that no one cared about to be "real", but she also stepped into the glamorous entertainment industry by chance. A real ancient princess wants to become the "Best Actress" that attracts much attention in modern times. What she has to face is a challenge that is more complex than the palace struggle, and a wonderful fate that spans thousands of years.