Vixen Vella (no mask version)

Contrary to other faunus born with tail and 2 pairs of ears, Vixen's faunus trait came in the unfortunate form of a fox paw on both hands, effectively making her no different to an invalid to both human and faunus society. Her family, specifically her father were one of the 'lucky' faunus slaves who were treated with mercy and respect; but nevertheless found their freedom after the faunus revolution. But as she grew older, being experienced in the good and bad of both worlds of human and faunus alike had she concluded that all are equally rotten and hypocritical in their own ways. As neither side cared for the invalid state of her 'paws' or other faunus who suffered a 'disabling' faunus trait.
More often that not, she would don a fox mask as it is both a memento of the generosity of her former masters while using it to hide her face before a company of folks she cannot trust.

Her semblance is 'Sight Unseen', the kind that allows her to hide from the eyes of others at will. For as long as she touches an object or person, those that she touches will also be hidden from view of others.

Side note: To reiterate her 'fairytale' or where she was derived from, her character was based on Zorro. During her conceptual stages, I wracked my brain trying to figure out how her name until I realised 'Zorro' in translation means 'fox'. So I decidedly designed with with a Spanish fox sort of design...ish. I hope I didn't offend anyone with what's laid out. As someone who is an immigrant and grew up seeing many a things about cultural clash and social perceptions, I must confess that there were areas where I was projecting parts of my experience onto her character. Not entirely, but just enough to get a good idea who she is as a character.
Extra note: I used this photo as reference so credit to the source material here:
https://www.deviantart.com/lesleyhat/art/Sword-Pose-3-34429798