Hmm...quesiton.

I don't think in the series it's ever stated how contractors are created, yes? It's been awhile since I've watched it, so I could be way off.

Would it be possible for a human to become a contractor later? I do know Hei wasn't originally one, but I'm a bit fuzzy on the details since I last watched/read this in highschool xP

just asking, because depending on the answer one of my characters will be starting out as a regular human. Might become a contractor later, dunno yet really, but it could be a thing.