Hanako-san, or , is a Japanese urban legend about the spirit of a young girl named Hanako-san who haunts school toilets. Like many urban legends, the details of the origins of the legend vary depending on the account; different versions of the story include that Hanako-san is the ghost of a World War II–era girl who was killed while playing hide-and-seek during an air raid, that she was murdered by a parent or stranger, or that she committed suicide in a school toilet due to bullying. Legends about Hanako-san have achieved some popularity in Japanese schools, where children may challenge classmates to try to summon Hanako-san. The character has been depicted in a variety of media, including films, manga, anime, and video games, and not just as the notorious Hanako-san but in some as Hanako-kun, the male version. The legend and its variations According to legend, Hanako-san is the spirit of a young girl who haunts school toilets, and can be described as a yōkai or a yūrei. The details of her physical appearance vary across different sources, but she is commonly described as having a bobbed haircut and as wearing a red skirt or dress. The details of Hanako-san's origins also vary depending on the account; in some versions, Hanako-san was a child who was murdered by a stranger or an abusive parent in a school toilet; in other versions, she was a girl who committed suicide in a school toilet; in still other versions, she was a child who lived during World War II and was killed in an air raid while hiding in a school toilet during a game of hide-and-seek. To summon Hanako-san, it is often said that individuals must enter a girls' toilet (usually on the third floor of a school), knock three times on the third stall, and ask if Hanako-san is present. If Hanako-san is there, she will reply with some variation of "Yes, I am." Depending on the story, the individual may then witness the appearance of a bloody or ghostly hand; the hand, or Hanako-san herself, may pull the individual into the toilet, which may lead to Hell; or the individual may be eaten by a three-headed lizard who claims that the individual was invading Hanako’s privacy. History Author and folklorist Matthew Meyer has described the legend of Hanako-san as dating back to the 1950s. Michael Dylan Foster, author of The