In the 1970s, there was a terrible legend among Japanese primary and middle school students that when they walked alone near the park after school, they would meet a woman wearing a white mask and a red trench coat. When she meets a passer-by, she will take off her mask, reveal her horrible mouth cracked to her ears, and ask her, "am I pretty?" If the answer is not beautiful, she will disfigure the other person; if the answer is beautiful, she will make the other person just like herself; if she runs away, she will catch up with her very quickly. The name of this woman is: crack girl. All the schools were in a panic, and the boys and girls were afraid of meeting this terrible woman, but the adults scoffed at the rumor. But with an unknown earthquake, the rift girl finally arrived.