Age: 21.
Height: Not specified, but she seems to be on the short side.
Weight: Slender. (But her hair probably adds some weight...)
Medical Info: On the surface, she is a perfectly healthy if somewhat physically weak young woman. But since she's from the end of the series, then it gets interesting!
SPOILERS GO HERE: [Nia does not have a normal material body. She has some kind of digital/virtual body instead. Before she came to camp, she was maintaining it with great difficulty through sheer force of will. Camp will now maintain it for her, but for the sake of interesting roleplay there may be troubles from time to time. Under normal circumstances, though, you'd have to use some kind of weird sci-fi gadgetry to tell that something is up with her bizarre existence.]
Eyes: Weird (blue with bright pink, cross-shaped, petal-like pupils).
Hair: Weird (fluffy, huge, iridescent blue-yellow-white, generally cloud-like).
Physical traits: See above comments on her hair and eyes. Basically, she looks like someone gave a Disney princess a radical anime makeover. Other than that, nothing special
What's Okay To Mention Around Him/Her: She's from the end of the series, so there's not much that could surprise her. Anything goes.
Abilities: In her Anti-Spiral form, Nia has mad hax, can teleport, shoot lightning according to the novels, etc etc. Her Anti-Spiral form is likely to appear very rarely in camp, if at all; only special events would trigger it. In her own form, she has no special powers, except the general weirdness of the current state of her body (see spoilers above), but she can't control that and normally it doesn't really do anything.
Notes for the Psychics: See the spoiler in medical info, above; psychics would be able to detect some of this as well. Other than that, the inside of Nia's mind is a weird place, but a pleasant one. She also has extraordinary willpower.
Can I shapeshift/bodyswap/spit at/step on/etc?: Sure. Just let me know before you do anything drastic, so we can plan it out.
Hugging/Kissing/Embarrassing Stuff: Not a problem; she will appreciate hugs! Kissing and badtouch may be awkward, but she'll deal with it.
Maim/Murder/Death: Thanks to [spoilers] above, if you hurt her, it is just about a coin toss as to whether she'll bleed or explode. So let me know beforehand if you're going to try.
Cooking: Hahahahahaha. Nia loves to cook. If you are not Simon, you will not love her cooking. It will probably be one of the worst things you've ever tasted and might make you sick to boot.
A NOTE ON THE SPOILERY STUFF: [Right now, I'm kind of winging it on how Nia's status as the Anti-Spiral Messenger and its canonically unalterable effects on her body affect her in camp. I don't want to make anything more difficult because of it, so if it doesn't work out, I'll have camp give her a normal body.]