Japanese folklore: Hanako-san

Hanako-san is a ghost that inhabits the 4th stall of the girl’s bathroom at every Japanese elementary school. Often she is believed to have committed suicide due to bullying, but sometimes she just happens to be a girl who died and went back to the bathroom. It instills fear in young Japanese girls of the number 4, which is bad luck because it is the same sound as the word for death (similar to Chinese).