Still today this name echoes in many streets of Japan. For the unseen one's it's a myth but the ones who had seen her, they cant forget that till the lifetime. In many of the families in Japan, they don't leave their children alone to school. Her name is 'Kuchisake Onna', who became a nightmare for many small streets in Japan. There's a story behind it.
Actually she was a girl from Heian period of Japan. Her husband was a brave Samurai. Once her husband saw Kuchisake with another man, he thought that she was not loyal and being unfaithful.
He cut her face with his sword in two slash just from the side of her lips, so that nobody would say her beautiful. One day Kuchisake looked herself in the mirror and after seeing such terrific condition of her face she can't control herself. She took the scissors
and murdered herself after that nothing much can be known.
Till today many people say that there is a woman wearing a mask and roam in streets. When she sees any child she asks them a question "Am I looking pretty?" If they answer yes she will open her mask and show her cut face and kills them same happens if anybody answers the opposite.
According to me , as I haven't seen her but, so it will be an unseen Horror for me.
-Saptarshi Mandal