Chen Yan, a doctor of materials science, was the son of a ten-year-old landowner in the Wude 7th year of the Tang Dynasty, also known as "Xiaren". He wanted to survive in troubled times, but unexpectedly met Li Shimin who was incognito. When the wheel of history came to Xuanwu Gate, he handed over a gunpowder formula and logistics optimization plan.
From then on, Zhenguan's prosperous era turned onto the fast lane. In one hand, he holds the Gwuyuan, where he makes steel and cement, and in the other hand, he controls the Intelligence Department, where he controls the affairs of the court. After destroying the Turks, pacifying the Western Regions, and conquering Goguryeo, prefectures and counties were established wherever the Tang Banner came. When the family counterattacked and the king and ministers became suspicious, he went overseas to crack the earth and claim the title of king, but the roar of the steam engine was the first to ring in the New World.
This is the world reconstructed by science students using formulas: musketeers trampled through Japanese shrines, and armored ships bombarded the European coast. When the first electric light went up on the top of Chang'an City, he returned with his six wives and the globe, and chuckled at the old Li Shimin:
"Your Majesty, the sun never sets on the Empire, it's time to change the wording."
