This is masked luchadora Kitzune Nanoko.
If you look very closely, you may recognize her as joshi puroresu wrestler Mio Shirai, who was one half of the tag team Sexy Purple Thunder Sisters (possibly the coolest tag team name ever in womens wrestling) along with her younger sister Io Shirai.
In September of this year, Mio showed up as Kitzune Nanoko in Mexico wrestling for Grupo Internacional Revolucion (IWRG).
In IWRG she teamed up with Biba Kasa, who was none other than her sister Io.

http://luchawomen.blogspot.com/2010/11/kitzune-nanoko-lucha-libre-aaa.html