[Alternate history + passionate and logical + a peerless patriot + rise from humble beginnings]
Prosperity fades, and decline takes its place.
A humble-born son-in-law rises to reshape the world.
He is a top talent from the 21st century, with a father renowned as a peerless patriot. Inspired by his father, he has mastered works like The Exploitation of the Works of Nature and Essential Techniques for the Welfare of the People, and has an expert grasp of the sciences. But he suddenly transmigrates to ancient times, to a kingdom where men are so scarce that the court assigns husbands to women, a rotten world where people prey on one another.
His wife is as beautiful as a flower, but with nothing to his name, how can he bear to hold her back? No matter. A peerless patriot can reshape the world! Master the sciences, and the world is yours!
No money? Invent movable-type printing and revive ancient papermaking! No troops? Introduce modern military management! No weapons? A smoothbore shotgun will mow down the enemy! He commands the wind and rain, wielding the thunderbolt of authority! Before long, he becomes a legend. Then one day, the princess finds him and asks him to become her husband.
Jiang Chen: Your Majesty! For the sake of the people of the Great Di, please die!
Good, good, good