The following novels are related to demons: - " Demon's Chronicle ": A fantasy novel about swords and magic. It tells the story of a man who becomes the Demon King. - " Summoning the Demon Lord ": Fantasy romance-Western fantasy novel. It tells the story of a young girl who summons a high-level demon. - " The Witch Returns to Become a Goddess ": A fantasy romance novel in a different world. It tells the story of a female protagonist who becomes a witch after her rebirth and then a goddess. - " Demon Summoner of Digital Mythology ": Suspense-mystery mystery novel. It tells the story of a demon summoner summoning and destroying demons through programs, and writing his own myth. - " The Devil's Favorite: Where Does the Black-bellied Sweetheart Run?": A romantic youth-youth love story, about a female protagonist and a demon king. - " Devil Ability User ": Light novel-Original fantasy novel. It tells the story of the male protagonist becoming a demon in order to protect the person he loves. - " Devil's Kiss: The Devil's Incarnation Dragging Girl ": A romantic youth-youth school novel, about the fierce battle and love story between a female protagonist and a devil. - " I'm a Demon ": Light novel-Original fantasy novel, tells the story of an ordinary demon. - " Extraordinary Demon Master ": A fantasy novel about a male protagonist controlling a demon in another world. I hope you like my recommendation.