[In the troubled times of the late Tang Dynasty, iron-blooded kings reigned supreme! History graduate student Ma Huaian travels through five generations, no system and no golden fingers! He became the king of Hebei from an unknown soldier with one sword and one kill, fought the Khitan cavalry in a bloody battle at Waqiao Pass, and Youzhou City recovered the lost territory in northern Xinjiang. Court intrigues? See you on the battlefield! In this life, I will definitely use the knife in my hand to bring peace to these broken mountains and rivers!