Kekko Kamen: The MGF Strikes Back (2004)

Kekko Kamen: The MGF Strikes Back 2004 / けっこう仮面 マングリフォンの逆襲 2004 / Kekko Kamen: Mangriffon no Gyakushu , Kekkou Kamen: Mangriffon no Gyakushu , Kekkou Kamen: The MGF Strikes Back

Mangriffon Academy is up to its old tricks again, routinely beating students who fall behind in class or violate their ultra strict policies. Kekko Kamen once again returns to put a stop to their abuse. --Eigapedia