The Heavenly Craftsman Shatters Tang

Lin Yufan transmigrates to the end of the Sui dynasty with a recipe for black powder in his left hand and the heads of his mercenary brothers in his right.

He helps Li Shimin break up the great clans and bring the Turkic royal court crashing down, but he also blows off a child's arm and burns his own eyes blind.

As the bones of the Black Armor Army blanket the prosperous reign of Zhenguan, the emperor on the dragon throne asks him, "Is this realm what you wished for?"