On the eve of the doomsday, the Demon Lord of the Cultivation World was surrounded and destroyed by nine sects in order to seize the ancient secret treasure. When he opened his eyes again, he was reborn as a good-for-nothing high school student in the modern city. When everyone was panicking about the zombie outbreak, he discovered that the aura of the world was recovering, and the souls of his enemies from previous lives were also scattered in this world. In this life, he holds the demonic path to devour supernatural powers in his left hand, and the orthodox mental method of the immortal sect in his right hand, rebuilding the demon sect in the ruins of doomsday. While the survivor base was still fighting for a mouthful of food, his sect disciples had already begun to use their swords to clean up the tide of corpses. Until one day, a satellite photographed him standing on top of the mutated beast king, with three thousand demon cultivators arrayed in the void behind him, and the remaining souls of the nine sects trembling in the clouds: "Demon Lord... Why are you here?