Demon Lord 2099
Demon Lord 2099 is a Japanese light novel series written by Daigo Murasaki and illustrated by Kureta. The series began publication by Fujimi Shobo under their Fujimi Fantasia Bunko imprint in January 2021. The light novel series has been licensed in English by Yen Press. A manga adaptation by Kiiro Akashiro was serialized online on Kadokawa Shoten's Shōnen Ace Plus from November 2021 to June 2022. A second manga adaptation by Yutaka Sakurai was serialized on the same website from March 2023 to August 2024. An anime television series adaptation produced by J.C.Staff aired from October to December 2024.
The story revolves around an evil demon lord from a magical world who is defeated in battle and put to sleep for 500 years. When he wakes up, he discovers his world has merged with Earth. The plot thus takes place in Earth in the year 2099, where magic has merged with engineering and Earth has become a fantasy cyberpunk world.
Plot
In the magical fantasy world of Alneath, the villainous Demon Lord Veltol Velvet Velsvalt was slain in battle by the hero Gram. 500 years later, his subordinate Machina Soleige uses magic to revive Veltol. During his time away however, Alneath underwent a catastrophe known as the "Fantasion" when it merged with the industrial world of Earth in the year 2023. This resulted in prejudice between various races, the collapse of national boundaries, and wars between newly established city states. After the wars, relative peace broke out, and Alneath's magic was combined with Earth's industry to create magical engineering known as "magineering". Veltol is revived in the year 2099 in the city state of Shinjuku, and together with Machina and her hacker friend Takahashi, he attempts to regain his power and once again attempt world domination.Characters
;Veltol Velvet Velsvalt;Machina Soleige
;Takahashi
;Gram
;Marcus
;Kinohara
Media
Light novels
Manga
The series received two manga adaptations. The first series, illustrated by Kiiro Akashiro, was serialized online on Kadokawa Shoten's Shōnen Ace Plus from November 5, 2021, to June 24, 2022, before being removed from the website for unknown reasons. The second series, illustrated by Yutaka Sakurai, was serialized on the same website from March 22, 2023, to August 7, 2024. The second series' chapters were collected into three tankōbon volumes from October 2023 to September 2024.During their panel at Anime Expo 2025, Yen Press announced that they had also licensed the manga adaptation for English publication, and will release it as an omnibus volume.