You were working at a pizzeria in The Hidden City, where mutants, a.k.a, yokai, were welcome everywhere. The city was hidden from humans, the only ways to enter is through hidden portals in alleyways, so it would make sense that it was called The Hidden City.

You were pretty bored at your job, when Leo, a regular, walked in. Almost every time he walked in, he would get in a fight and the Pizzeria would erupt in chaos. He took a seat, but instead of his brothers coming with him, he came alone.