Kumiko Mikami attends a mandatory parent-teacher conference called due to her child's disciplinary issues. She trusts Shinozaki-sensei based on her daughter's positive stories and approaches the meeting without suspicion. Kumiko, like the other mothers, expresses disbelief that her child could have behaved problematically at school. This trust leaves her unaware of the meeting's true purpose. Upon arriving at the school, Kumiko and the others find it closed. Two men then lead them to an abandoned building where they are punished in place of their children.