Lin Mo, a modern young man, woke up and became the nine-year-old little emperor of the fictional dynasty Dayin. Under the dragon chair, powerful officials are sinister, powerful generals are arrogant, and civil servants are cunning. He is just a prisoner in a golden cage. In order to survive, he hid his edge and secretly weaved a web. From seizing power in the deep palace to personally conquering the emperor, every step is shocking. The emperor's oath to guard the country turned into beacon smoke, and the fate of the king's death came to the city. Can he use his modern soul to guard the country in this huge wave, or die with his own life and compose an eternal song for the time traveler?