Why Is the Demon Lord Like This?

He was destined to conquer worlds, crush heroes, and topple goddesses—until the hero's blade ended it all. Now reborn in a pseudo-Tokyo teeming with yokai and supernatural secrets, the former Demon King must navigate a strange new existence far from his throne of power. No armies to command, no divine realms to conquer, just the bewildering chaos of modern life and the yokai lurking in its shadows. What happens when the world's greatest dark lord gets a second chance in a world that doesn't need conquering?