(Yandere demons x reader) After you and your father move in with his new girlfriend, you discover a library where you find a book to summoned demons. When you try out for a joke everything change when a demon comes live with you in secret. Soon you will be drawn into the dark magic of another universe that will your life on earth make very dangerous for you and your beloved ones. that's why you need to go another school in a other universe where you found people who wants to kill you matherthe cost...