The Story of Demon Slaying

Have you ever seen a demon? I believe that most people will never know that under the prosperous age, there is another world, where monsters lurk, spirits walk at night, evil spirits cause trouble, and devour human lives. But humans know nothing about it. Killing demons, clearing traces, deleting memories, forging scenes, and maintaining order are the responsibilities of the Demon Realm Law Enforcement Bureau. At the same time, they are also called "demon slayers."