The Demon Lord 2099 (Maou 2099) light novel series is set to conclude with its sixth volume, according to an announcement from Kadokawa's Fantasia Bunko imprint. Written by Daigo Murasaki and illustrated by Kureta, the series began publication in January 2021, with the fifth volume released in November 2025. The franchise, which follows the legendary Demon Lord Veltol as he attempts to rule a futuristic version of Shinjuku, has expanded into multiple formats. Yen Press currently holds the English-language rights for both the original light novels and the manga adaptation illustrated by Yutaka Sakurai. Additionally, the series inspired an anime adaptation that debuted in October 2024, which is currently available for streaming on Crunchyroll with an English dub.