In Japan, the school contain an internal secret. if you go into the girl's bathroom on the third floor of the building, and walk to the third stall,you might find her.
You have to knock 3times and call her name,"when you open the stall door,a little girl in a white dress will be there".
The little girl with the bob haircut is Hanako-san. she wants friends to play with,maybe. or perhaps she wants to drag you to hell through the toilet.
"Depending on which part of japan you live in,she may have a bloody hand and grab you, or be a lizard that devours you"
"Hanako-san has become a fixture of japanese urban folklore over the last 70 years. The most popular origin story for the tale holds that during world war II, a school girl was using the bathroom when a bomb fell on top of the building . The school collapsed on top of Hanako-san, who has been trapped there ever since.