Mayumi Takahashi

The young girls at the Spartan School are protected from the evil school director by the superhero Keko Mask. Keko Mask has an uncanny way of destroying her opponents by stunning them with her private parts and proceeding to kick their butts. (imdb)

Young Sayuri has been living at a boarding school when one day her father suddenly shows up to bring her home. However, right after bringing Sayuri to her new home he has to leave on a business trip. Sayuri soon learns that strange things are going on in this house. She finds out she has a sister, Tamami, who spends most of her time hiding in the attic.Tamami acts in an increasinly threatening way towards Sayuri, but neither Sayuri's mother nor the maid will believe her when she tells them.

A mobile app that is explosively popular. It seems that there are apps that are possessed by psychics and apps that are used for strange crimes. This is a documentary that summarizes the stories of fear related to mobile apps.