From the day he entered the Guangping Palace, Li Chu vowed to let the sun of the prosperous Tang Dynasty never set. He saw through Li Linfu's tactics and An Lushan's ambitions, and secretly planted his wings in the prosperity of singing and dancing; he tried to prevent the Maweipo mutiny, fought eunuchs and suppressed powerful ministers in the Suzong Dynasty, and held military and political power; he founded the Cardinal's Staff Council, promoted the study of things, opened up overseas trade, and let the lights of Chang'an illuminate a wider territory. Even though the years are making his head grow old, he looks back at his merits and demerits and sees all the nations coming to court, the rivers clear and the seas flowing - in this life, there is no dusk in the prosperous Tang Dynasty.