Yes, HER.
Vince is part demon, right? And she grew up in Ground Zero, which is the outskirts of the city and where one of the nuclear blasts occurred. Women in Ground Zero are treated as though their only purpose is reproduction, and there are some parents, Vince's for example, who have daughters but don't want them treated like that, so they pretend that their daughters are sons and give them masculine names and the whole bit.
Does that explain it? Because if it doesn't, I think you're stupid.

Friday morning's de-stresser. AAHHHH, LOVELY. I also drew some poses from pose-maniacs.com's random pose generator right on the next page, and a character design of Vince on the same page.

The bloody fixative turned the biro BLUE!! Shadows aren't BLUE, they're BLACK!! Stupid thing... Oh well. I got it for free, and at least now the pencil won't rub off onto the next page. (Which is a pain in the arse)

I SHOULD OF DRAWN HER OTHER ARM, BUT I COULDN'T WORK OUT HOW TO DRAW IT IN, SO I'LL BE MATURE AND SAY "FUCK OFF, BETCH!!" IF YOU GET ANAL ABOUT IT. :U
Also her pose is very weird...

edit: Made the fullview smaller, and I think I should mention that she's a Vehicle Machinist, which is the future equivalent of a mechanic.