1. The identity of the protagonist: Zhu Xiongying (the eldest grandson of Zhu Yuanzhang, died at the age of 7 in the original history). The soul wearer carries the knowledge of history, military, and technology in the 21st century. When he was reborn, he was in the fifteenth year of Hongwu (1382), and his physical age was 12 years old.
2. Era background: In the middle and late period of Hongwu, the court: the aftermath of the Hu Weiyong case was still unresolved, and Zhu Yuanzhang became more suspicious of nobles; clan: the vassal kings (Zhu Di and others) had already taken over the vassal, and their military power was gradually growing; externally: the remaining forces of the Northern Yuan Dynasty were entrenched in Mobei, Japanese pirates raided the southeastern coast, and Nanyang did not have in-depth trade with the Ming Dynasty.
3. Core goals: Short-term: save life (avoiding the hidden danger of premature death), gain the trust of Zhu Yuanzhang and Zhu Biao; mid-term: reform bad governance (official administration, military system, taxation), weaken the military power of vassal kings, and develop science and technology and economy; long-term: quell foreign aggression (Bei Yuan, Japanese pirates), expand overseas (colonize Nanyang, connect Europe and the United States), establish global hegemony, and avoid the decline of the late Ming Dynasty.