"Elf ni Inmon wo Tsukeru Hon LEVEL: 1" (also titled A Book on Marking Elves with Lewd Symbols) is an erotic fantasy OVA based on Ninoko's manga, produced by studio Showten and released on November 29, 2024 . The story follows Sylpha, a forest guardian elf who is defeated by a mysterious man attacking her village, raped, and branded with a lust mark on her abdomen that consumes her body with daily pleasure . While still retaining her sanity, Sylpha sets out alone to remove the lewd crest and recover her village's stolen treasure, though her body continues to be tormented by the mark's overwhelming pleasure .