Demon Lord 2099

In the year 2099, within Shinjuku City, the fabled Demon Lord Beltre has made a comeback in this advanced metropolis that has reached the pinnacle of development. The magnificent prosperity of the sprawling city-state contrasts sharply with the terrifying "darkness" lurking behind the facade. To dominate this new world, the Demon Lord is advancing into the future!

It was serialized online on Kadokawa Shoten's Ace Plus from November 5, 2021, until 2022, when it was taken down from the website for unspecified reasons.