I Killed Demons and Became a Saint in the Demon Suppressing Division

Once he traveled through time, the world was in chaos with demons and demons, and the world was like a prison. Fortunately, Lu Chen has a system to gain merit by slaying demons, and using merit can instantly improve his martial arts skills. Since then, a ruthless man who slays demons has appeared, and the sword in his hand has caused countless demons to have their livers and gallbladders broken. The evil demon that eats people, the corpse that causes trouble in the world, the great demon that brings natural disasters, Lu Chen silently wields his knife in the sea of ​​blood and corpses, accumulating the power to subvert the world. When the mist enveloped the sky, Lu Chen looked at the world that was undergoing drastic changes and stood with a knife in his hand. If this world has fallen into darkness, then he, Lu Chen, will become the ray of light that breaks through the eternal night. If there is no light in this world, then Lu Chen will use the knife in his hand to create a bright world.