Li Fan, a modern young man, traveled through time and became Li Fan, the son of Emperor Xuanzong of the Tang Dynasty, just before the Anshi Rebellion. Faced with the crown prince's fear, the undercurrent in the court, and the crisis of life and death, he used the court game to win the title of Prince Feng, and took the initiative to ask the tasseled bandits to take control of the military. On the way, he recruited powerful assistants such as the chivalrous girl Li Xuanji and the exotic beauty Hong Yue to form the Shadow Guards. While suppressing the banditry in eastern Zhejiang and uncovering the mastermind, he secretly trained troops to prepare for war. He circled in the whirlpool of power and intrigue, accumulated strength on the eve of troubled times, and vowed to rewrite the fate of the Tang Dynasty from prosperity to decline and protect the peace of his family and country.