Jun'ichi Kanai

"I have to play hide an seek by myself to escape the loneliness." So starts a blog on a mysterious website which quickly spreads like wildfire, starting a dangerous online game. At 3:00 in the afternoon, a teddy bear stuffed with rice and nails is sunk into a bathtub. The lights go out and the player is required to stab the bear with the knife, then write their experiences in the blog. But lately the comments have taken a dark, demented turn. As though the players are being possessed. (cinemaepoch.com)

Yoko meets a transfer student when she is isolated by her junior high school classmates.