Zhu Zhiming wanted to depict the history of the Ming Dynasty. When he couldn't find inspiration, the time machine took him to the Ming Dynasty. By chance, Emperor Longqing conferred the crown prince. Zhu Zhiming suddenly became the prince of the Ming Dynasty, and then successfully ascended the throne and became the Wanli Emperor in history.
Zhu Zhiming only had a little theoretical basis in history books, but his experience of this unknown time and space far exceeded his imagination.
This trip ended after the Wanli era, that is, after the end of Zhang Juzheng's era.