A Hannya(般若 はんにゃ)mask is a famous Japanese Noh mask representing a woman's jealous rage. With its sharp horns and metallic eyes, it shows a person who has transformed into a demon due to deep sorrow and anger.
Although it looks terrifying, it also expresses human vulnerability and sadness hidden behind the anger.
能「葵の上」や時代劇「桃太郎侍」でおなじみの般若のお面です。「鬼」と混同されがちですが、こちらは嫉妬や怒り、悲しみが凝縮された女性の顔を表現したものです。