Hannya is the name of a noh mask. It signifies a specific kind of Buddhist sin relating to ignorance and attachment. Gender is not a part of it. Oni is a bit of a generic term which refers to evil spirits and the denizens/servitors of hell. The two terms are not mutually exclusive.
A user asks about the difference between oni and hannya masks, two types of Japanese inked art. A verified artist replies with a simple explanation and some examples of oni and hannya tattoos. The post also shows other posts of irezumi (Japanese tattoo) art on r/irezumi.
Judge of Good and Evil: The hannya is the female version of the Oni (male demon). In Japanese folklore, the Oni punishes people by spreading disease. This may explain why the hannya mask tattoo is popular among yakuza gang members as they often punish their enemies.
In traditional Japanese folklore, ghastly red-skinned and hideous demons called oni have long been thought to inhabit various parts of the world; they are usually depicted as humanoid in form but may have unnatural features such as an odd number of eyes, claws, fangs and face. 2 Onis Or Japanese Ogres Wear Clothes Made From Wild Animal's Skin.
The main difference between Oni and Hannya lies in their appearance and nature. While Oni are malevolent and fierce creatures, Hannya are more emotional and vengeful. They embody the darker emotions and feelings of the human heart, while Oni are simply supernatural beings.
What is the difference between Hannya and Oni? Hannya masks differ from oni masks in that Hannyas represent female demons in Japanese storytelling, while oni masks represent masculine demons. Hannyas are created when a woman is betrayed and overcome by feelings of jealousy, obsession and sadness.
mBOzytz.
difference between hannya and oni