Slit-mouthed woman
In Japan and China, there is a story of a girl who was caught cheating with her husband over a younger and more handsome man. After discovering about it, he decided to slit the woman’s face from ear to ear. She was also cursed to not die ever. Since then, she was seen walking around several times asking people if they find her pretty. Then she removes her mask revealing the slit. She repeats the question and those who don’t find her pretty end up being murdered.