In a Crossover World, I Somehow Became the Village Chief Despite Being Overpowered

I own an inn.

No one ever came, but that changed when a young demon slayer arrived with a box on his back.

A young lady named Erina became a waitress at the inn, and every now and then she insists on having some kind of food duel with me.

And the thing in the box isn't anything else. It's the demon slayer's younger sister, Nezuko Kamado.

Odd people stop by to stay from time to time, too.

Like a high school student who wants to become a savior, or a girl with a clock in her eyes...