Li Jue has something inside him called the Soul-Eroding Mark. It burns his bones with pain and keeps making ghosts cry out, like maggots burrowing into his flesh. Dragging his battered body along, he swings the door-sized Profound-Weight Mountain-Splitting Blade and fights for his life amid blood rain and hordes of monsters. He has only one thought: find the person who did this to him and take revenge! That person is Yun Qingxiao, once a savior, now the great demon known as the Soul-Eroding Demon Lord.