There Are Demons Everywhere, but I Am the Only Immortal Cultivator in the World

At the end of the Jin Dynasty, after the Rebellion of the Eight Kings, the Five Demons founded the country, and wars broke out across the land of China. Demons also dared to enter the houses, dress up and claim to be the emperor. How could I, the hero of the Central Plains, not draw my sword in my hand to slay demons and eliminate demons! (PS: No system. Before I was twenty years old, I liked the refreshing system, but later I got tired of the system's brainlessness, so I wanted to write about some fairy tales that were different from those on the list.)