A Commoner from a Poor Family, He Picks up a Royal Wife at the Beginning

Traveling through ancient times, wars have been plagued year after year, a severe drought is approaching, and there is no food to eat. The original owner of the prodigal son used his last two taels of silver to redeem a pair of refugee girls. When foreigners invaded, Zhang Mu, who originally just wanted to be a happy little landowner, was forced to pick up the butcher's knife in his hand. There is an old saying that if you learn mathematics, physics and chemistry well, you will not be afraid of traveling all over the world. Since you are not afraid, I can only beat you until you are afraid! The Xixia wolf army was beaten into kobolds by Zhang Mu. The Nanliang cavalry was beaten to the point where they lost their armor. The barbarians of the Northern Wilderness were tamed and naturalized by him. The Dongyi Japanese were insulted by him and turned into a joke! … The emperor was afraid of Zhang Mugong's superior master, and wanted to kill all the birds and hide the good bows. Since you have nothing to do, you are looking for trouble. I can only overthrow your Dachang world and live a free and unrestrained life!