Demons Are Rampant: I Rely on Slaying Demons to Prove Immortality

Li Xuan traveled to a world where demons were rampant. In this world, Qi training was prevalent, demons were rampant, and humans lived in fear and uneasiness. However, Li Xuan accidentally obtained a mysterious system, which gave him the ability to kill demons and gain merit points. With the help of the system, Li Xuan grew up to be a protector of the human race.