Mayumi and the other students are suspected of cheating and put in the torture room, where a device is waiting on them. However, this is all a ruse to make Kekko Kamen appear!
Keiko Natsuwata / Kekko Kamen
Mayumi Takahashi
Satan's Toenail
Koichi Omote
Kaori Wakatsuki
Bondou
Professor Kimio
Violence Jack
Vice-principal
2007
2025
2009
2022
2023
2021
2024
2017
2020
