Raising Troops by Slaying Enemies: From Abandoned Son at the Border to Supreme Emperor

Xu An transmigrates to the Great Zhou dynasty, where he becomes a discarded son of the Mighty Marquis's manor, thrown to the borderlands to die. He gains the Conquest System, which grants him troops and skills when he kills enemies.

The vassal kings rule their own territories with armies of a million?

I'll flatten you, and your territory and your army will both be mine!

The great clans control the written tradition. Without them, they say, decrees can't be enforced and the realm can't be governed?

From elementary school graduates to professors, I've got soldiers with every kind of degree. Pick whoever you want.

The foreign tribes are eyeing the Central Plains, ready to conquer it?

Once I've gathered a hundred thousand cavalry, I'll give you a six-month head start!

The emperor calls me a rebel and traitor?

Ha!

Whoever loses is the rebel army! You remnants of the previous dynasty, hand over that imperial robe!

Years later, Xu An lounges on the dragon throne, bored out of his mind.

The whole world belongs to the emperor. This really is dull.

Just then, an urgent report arrives from eight hundred li away.

"Your Majesty, a report from the Northernmost Protectorate: the world has changed. Mountains have collapsed, the earth has split open, and dark masses like flowing ink have appeared in the fissures, along with things that are almost, but not quite, human! We await Your Majesty's decision."