Monster Illustration from Zine

Futakuchi-onna

"A futakuchi-onna (二口女?, lit. "two-mouthed woman") is a type of yōkai or Japanese monster. They are characterized by their two mouths – a normal one located on her face and second one on the back of the head beneath the hair. There, the woman's skull splits apart, forming lips, teeth and a tongue, creating an entirely functional second mouth.

Though there are several stories linking the appearance of a futakuchi-onna's second mouth to different causes, it is most often linked to how little a woman eats. The soon-to-be futakuchi-onna is usually a wife of a miser and rarely eats. To counteract this, a second mouth mysteriously appears on the back of the woman's head. The second mouth often mumbles spiteful and threatening things to the woman and demands food. If it is not fed, it can screech obscenely and cause the woman tremendous pain. Eventually, the woman's hair begins to move like a pair of serpents, allowing the mouth to help itself to the woman's meals."