Lin Xiaofan, a modern man, accidentally traveled through time and became Zhu Yuanzhang, the founder of the Ming Dynasty! At this time, the emperor's grandson Zhu Xiongying was dying of smallpox. He used the "sign-in performance system" to summon the miracle doctor Hua Tuo to save his grandson, and even found out that the smallpox was caused by his daughter-in-law, Lu. Lin Xiaofan thundered and executed Lu, rewriting the tragedy of the Ming Dynasty. After that, he worked hard, used modern technology to prevent Empress Ma from tuberculosis and Zhu Biao's early death, started the industrial revolution, and built an invincible fleet. In just a few decades, the Ming Dynasty's iron cavalry traveled all over the world - dragon flags were planted in Southeast Asia, Europe, and the Americas; only Japan stubbornly resisted and was slaughtered throughout the country, leaving not a single blade of grass behind! The whole world is assimilating Chinese language and clothes, and the princes are entrusting each continent. However, Lin Xiaofan and Queen Ma are as affectionate as ever. They sit and watch the sun and moon shine, and they are both in the bright land. A magnificent epic of global conquest has begun!