I couldn't actually tell you. They probably exist in our world... or rather, the world attached to ours.

Mages in my world have to stay hidden, though magic itself is more of a secret of knowledge than bloodline. On the bright side we do get trained and sent off to help people so long as we aren't careless on who we reveal magic to.

It's starting to fall apart given that we're needing to save the magical world from extinction, but... yeah. That's the state of things before I got here.