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.
Then, she showed up in Asistencia Asesoria y Administracion (AAA) teaming up with Alissa Flash (Cheerleader Melissa) to take on and defeat Cinthia and Esther Moreno.
In Japan, Mio used wrestling and MMA style moves in the ring, and was known for being "stiff".
I'm wondering if Kitzune Nanoko and Biba Kasa might wind up being a force in AAA.
Kitzune Nanoko - Lucha Libre AAA, posted to http://luchawomen.blogspot.com/ on November 10th, 2010