Hannya Mask
The hannya is a Noh theatre mask sculpted as the face of a woman transfigured by jealousy, resentment, or obsessive love into a horned, serpent-eyed demon with a gaping, fang-filled mouth and trailing metallic teeth. It is worn in plays such as Dojoji, where a spurned woman becomes a serpent that pursues the monk Anchin into a temple bell, and Aoi no Ue, where the living Rokujo no Miyasudokoro torments her rival through spirit-doctoring. The mask is carved in ascending grades of intensity, from a slightly raised mouth to a fully open jaw with gilded fangs, so a single hannya can move on stage