>>2248436she's from an spin-off, called queen's gate, which is basically queen's blade but with licensed characters from other franchises; she found a portal in some ruins, said portal lets her travel through time and other worlds. i know that there's a light novel of her searching for her mother, and there's also a psp game where they cross over various videogame characters in it, and she is also in it.
as far as i know, both are untranslated.
tl;dr she doesn't appear in queen's blade