The Invincible Prince of the Tang Dynasty

He transmigrates to the Tang Dynasty as a prince, only to find treacherous ministers corrupting the court from within and foreign tribes eyeing the empire from without, while the people suffer in misery.

Li Yin has no choice but to purge the treacherous officials, build an iron army, repel foreign invaders, cut taxes, and improve people's livelihoods. Before he knows it, he has ushered in a golden age for the Tang and fulfilled his grand ambition of holding the power of the world in his hands.