The Frontier Army's Fierce General

In the Great Xia Dynasty, the Northern Di armies invade year after year. The northern frontier is in misery, and countless able-bodied young men die on the battlefield. Lin Yun transmigrates into this world and becomes an ordinary, down-on-his-luck young man from a remote village in Beizhen, Liangzhou. He soon learns that his older brother has died in battle. According to the imperial army's rules, when a soldier dies, his family must send another male relative to take his place... And so Lin Yun embarks on an epic journey through the ranks of the army.