Kuchisake onna is said to be a vengeful spirit who covers her disfigured face and asks strangers: “Am I beautiful?” She then attacks them regardless of how they answer.

Japan has its fair share of monsters and ghost stories. But few are as frightening as the legend of kuchisake onna, the slit-mouthed woman.

According to this creepy urban legend, kuchisake onna appears to people walking alone at night. Upon first glance, she seems to be a young, attractive woman covering the lower part of her face with a mask or fan.

She approaches her victim and asks a simple question, “Watashi, kirei?” or “Am I beautiful?”

If the victim says yes, the kuchisake onna exposes her full face, revealing her grotesque, bleeding mouth slashed ear-to-ear. She will ask once again, “Am I beautiful?” If her victim then says no or screams, kuchisake onna will attack and slash her victim’s mouth so that it’s like hers. If her victim say yes, she may leave them alone — or follow them home and murder them.

Source https://allthatsinteresting.com/kuchisake-onna