Kuchisake onna
The Kuchisake Onna, or slit mouthed woman, is a popular figure in Japanese folklore. She even shows up in many modern day urban legends. She often appears wearing a surgical mask to cover her mouth, which has been ripped open from ear to ear. She will ask unknowing passers-by whether or not they think she is beautiful. Often they will say yes, and she will remove the mask, showing them her torn face and ask again. If the person says no, then she will rip their face so it resembles hers.