The time traveler Li Qing was cursed with immortality and experienced the bloody rain of Hongwu and Jianwen's defeat. In the early years of Yongle, he once again witnessed Zhu Di ascending the throne with an iron fist, abolishing the Jianwen New Deal, and restarting the Jinyiwei. As the emperor's trusted "lone minister", Li Qing secretly reestablished the Imperial Guard, supervised the Weaving Bureau, and prepared money and food for Zheng He's voyages to the West. However, he had to deal with the dispute between the crown prince Zhu Gaochi and the Han king Zhu Gaoxu for the throne. The whereabouts of Emperor Jianwen is a mystery, the northern Tatars are watching with eager eyes, and the secret of Li Qing's immortality may be exposed at any time. The curtain of Yongle's prosperous era has begun. Can he preserve himself in this glorious history?