Who is This?

Does anybody know what this statue is? I thought it was one of the Japanese Noh Theatre characters, Hannya however I don't see horns growing out of her forehead as is traditional for this character. The statue is a simple carved wood one measuring about 4 inches in height. The hair which shades her eyes falls down the back ending in a point. There is a mixture of fine detail and simple single stroke cuts after the style of Enko. (Enko was a 17th century Zen Buddhist monk who carved with a hatchet and left behind an incredible legacy of carved Buddhas.)