Unaired OVA bundled with the 20th volume of the Prison School manga, adapting the "Mad Wax" arc.

Daisuke Namikawaas Jouji Nezu
Katsuyuki Konishias Takehito Morokuzu
Kazuyuki Okitsuas Reiji Andou
Hiroshi Kamiyaas Kiyoshi Fujino
Shizuka Itouas Meiko Shiraki
Kana Hanazawaas Hana Midorikawa
Kenichi Suzumuraas Shingo Wakamoto
Chinami Hashimotoas Chiyo Kurihara
Sayaka Ooharaas Mari Kurihara
Ami Koshimizuas Kate Takenomiya