Maou 2099  

Demon Lord 2099, Ken to Maou no Cyberpunk, The Lord Of Immortals Blooming in The Abyss F.E. 2099, 魔王2099, 魔王2099: THE LORD OF IMMORTALS BLOOMING IN THE ABYSS E.E. 2099, Maou 2099:THE LORD OF IMMORTALS BLOOMING IN THE ABYSS E.E. 2099

In 2099, during the Fused Era, Shinjuku is an advanced city-state with neon lights, towering buildings, and cutting-edge technology. This is where Demon Lord Veltol returns after five centuries of being gone. However, this world has changed significantly since his last visit due to the fusion of magic and engineering. Despite Veltol's diminished status in history, he still holds a chance to conquer this new realm.