In his previous life, Chen Han was a video creator who made videos recreating ancient technology and had tens of millions of followers. One day, he transmigrates to the twenty-fifth year of Hongwu.
Crown Prince Zhu Biao has just died, Zhu Yunwen is about to be named Crown Prince's Heir, and Lan Yu is about to be executed. As a distant relative of Lan Yu, Chen Han is destined to be implicated as well.
Familiar with the course of history, Chen Han wants to save his own life. He also knows that Zhu Yunwen is incompetent, so he turns the tide, helps the imperial grandson Zhu Yuntong become Crown Prince's Heir, saves Lan Yu and the others, and becomes the most trusted minister of both Emperor Zhu Yuanzhang and the new heir, Zhu Yuntong.
Taking this opportunity, Chen Han uses his skills to help the Ming Dynasty advance its technological development, "inventing" the steam engine, generator, telegraph, spinning machine, and more.
He establishes the Ming Trading Company, setting up branches in the Timurid Empire (India), Tsarist Russia, Japan, the Nanyang region, and other countries. He monopolizes foreign economies, controls overseas trade, and exports opium to Western nations. When war breaks out over opium, he wins decisively and forces them to sign treaties.
In the end, he helps the Ming Dynasty colonize the world, expanding its territory across Europe, Asia, and Africa...