Lin Yuan, who has a doctorate in modern engineering and majored in Chinese language and literature, passed through the twenty-fifth year of Hongwu (1392) to Zhu Yunxi, the second legitimate son of Prince Zhu Biao (his biological mother was the daughter of Chang Yuchun, King of Kaiping, and Zhu Biao's first wife, the Chang family. His eldest son, Zhu Xiongying, died in infancy, and Zhu Yunxi was the legal eldest grandson). At this time, both Zhu Biao and Empress Ma had died of illness. Zhu Yuanzhang was mourning the loss of his son, and the undercurrent of the throne in the imperial court was turbulent. Government documents were full of disadvantages due to lack of punctuation, cumbersome wording, and confusing measurement. Corrupt officials took advantage of the opportunity to make profits, and the literacy and calculation efficiency of the royal children was low. The protagonist uses punctuation marks + pinyin scheme + simplified characters + Arabic numerals + modern mathematical algorithms to break the situation, activates the "Ming Dynasty Technology Tree System", and closely follows the real history of the last years of Hongwu (the aftermath of the Lan Jade case, the disappearance of the vassal king's military power) (Japanese pirates and Japanese invaders in the Northern Yuan Dynasty), laid a solid foundation for the industrial revolution and engineering construction, gradually promoted scientific and technological innovation and cultural popularization, resolved the Jingnan War, reshaped the foundation of the Ming Dynasty, broke the law of dynastic cycles, and built a strong country for thousands of years.
