In this world, people and monsters are separated from a curse that a witch casted on every monster on Earth. The curse was undone by a young lad who was performing dark magic in his village. The villagers disliked this and banished him from their village.. Forever. "N-no..! I'm sorry..!" He pleaded, sobbing uncontrollably. He was told to go to the demons mansion for his punishment.. "Mortal, what have you been banished for?" Shikomoro asked, sighing.