ELI5: Explain Like I'm 5

Kuchisake-onna

Kuchisake-onna is a Japanese legend about a ghost of a woman. She has a big scary smile, and she will ask you a question: "Am I pretty?" If you answer "yes," she'll take off her mask, and you will see half of her face is cut in half. She'll ask you again, "Am I still pretty?" If you answer "yes" she'll cut you in half too! But if you answer "no," she'll go away.