[Infrastructure + Power Fantasy + Cutting-Edge Technology] Li Yue, an engineering geek, finds his soul in the body of the least favored Ninth Prince of the Great Xia Dynasty. Banished to a godforsaken northern fiefdom and forbidden to return to the capital for the rest of his life, everyone thinks he's finished. But using modern knowledge, Li Yue spends five years turning the barren fiefdom into a city of technology and wealth. Cement roads, strong liquor, soap, glass... one era-defining invention after another appears. Then one day, the Crown Prince, ordered to inspect the border, accidentally stumbles into Li Yue's "heavenly kingdom on earth." The Crown Prince is stunned. "Ninth Brother, you call this... a barren land?"
"What is this road, hard as stone? And this priceless glass mirror, why are you using it as a wall decoration?"
"Good heavens... what is this iron contraption that spits fire (a steam engine)?!"
The news reaches the capital, shaking the entire court! Watch the most useless prince use cutting-edge technology to become richer than the nation, seize power over the court, and win the hearts of princesses and female generals alike!
Very excellent novel The plot is very smooth