OVA
Description
Based on the Japanese urban legend "Toire no Hanako-san," Hanako-san manifests as a ghost haunting the third-floor girls' restroom in an old school building. She typically appears as a young girl with bobbed hair, often wearing a red skirt or white shirt, though her specific design varies. In the original *Ghost Stories* anime, she has dark blue hair, blue eyes, pale skin, wears a pink dress, and appears translucent.

Shy and benevolent, Hanako-san harbors no intent to frighten humans. She feels lonely and seeks friendship, yet often inadvertently scares those who encounter her. After protagonists help her reclaim her toilet stall from the demon Akagami Aogami—who displaced her and caused a sewer flood—she becomes a supportive spirit within the old school building, aiding them against malevolent entities. Key appearances include the pilot episode, where she accidentally frightens the main group, and the second episode, where her plea for help drives the plot. She also makes a cameo in "The Picture That Swallows People: Da Vinci," assisting alongside other friendly ghosts.

Her design changes in the sequel *Gakkou no Kaidan SP*: she wears a red kimono with a yellow stripe, Japanese sandals, and has black eyes. Here, she co-hosts segments in the "Ghost Theater" with spirits like the haunted statue Ninomiya.

The urban legend offers multiple backstories: she may be the ghost of a World War II–era girl killed during an air raid while playing hide-and-seek, a victim of parental or stranger murder in a school toilet, or a bullied child who died by suicide there. The summoning ritual involves knocking three times on the third stall door and asking, "Is Hanako-san there?"; she may reply affirmatively before potentially dragging the summoner into the stall or manifesting a bloody hand. Historical theories link her to a 1954 Tokyo murder of a schoolgirl or a 1937 family suicide in Iwate Prefecture, though these are not adapted in the anime.

Beyond the anime, Hanako-san surfaces in broader pop culture, including films like *Toire no Hanako-san* (1995) and manga such as *Hanako and the Terror of Allegory*. A male version, Hanako-kun, features in *Toilet-Bound Hanako-kun* (2014–present). The legend also inspired real-world cultural figures like the idol "14th Generation Toilet Hanako-san."