The order breaks down and all realms are invaded. The selected person will be given the name of "Walker" and travel among all realms, just to help mankind gain a glimmer of life in this invasion war. When all the Walkers are fighting back and forth with the ghosts in "Demon Slayer", Lin Yuan jumped down from the mountain of corpses piled up by the cursed spirits, looked at Su Nuo and said calmly: "Are you going to make a decision on your own, or should I help you?"