The story behind the hannya mask is one of rage and jealousy, tragedy and heartbreak. A woman named Hannya was once deeply in love with a man, but he spurned her advances. A woman who was once jilted by her lover now became consumed with anger and hatred.n her anger and jealousy, Hannya became possessed by a demon,

And her face was turned into a fearsome thing and she transformed into a monster. The mask is said to represent the intense rage and fury of unrequited love. This mask also represents the darkest part of human emotion and is a warning against giving in to anger and envy.