A quintessential Japanese school ghost story: knock on the third stall of the school bathroom and call out "Are you there, Hanako-san?" and a girl's voice answers "Yes" from inside.
Hanako-san of the Toilet is one of the most famous ghost stories set in Japanese schools. According to the legend, if you knock three times on the third stall of the girls' bathroom (typically on the third floor), and ask "Are you there, Hanako-san?", a voice will answer "Yes" from inside. Opening the door reveals the ghost of a girl with a bobbed haircut wearing a red skirt.
The legend of Hanako-san has been documented since the 1950s and is told in elementary schools throughout Japan. Details vary by region — the "third stall" may become the "second from the back," and the calling phrase differs. Hanako-san's backstory also varies: in some versions she is a girl killed during wartime air raids, in others a bullied student who took her own life at school.
Hanako-san has deeply permeated Japanese pop culture, appearing in countless films, manga, anime, and games. She contributed significantly to establishing the "school ghost story" genre. Multiple film adaptations exist, beginning with the 1995 movie "Toire no Hanako-san."