Original Dark Lord of Earth (CK2) (Harry Potter)

You, a Typical Dark Lord™, from a Typical Fantasy Setting™, are reverse-isekai'd to Earth after dying.

You quickly decide to not let a bit of interdimensional displacement get in the way of your grand ambitions, and set out to take over the world.

This can only end well.

As of turn 40, a major plot twist has been revealed: you're not on our Earth, but the Earth of Harry Potter. Have fun with that.