Mask the Kekkou: Reborn

Original title: けっこう仮面 新生-REBORN-

Sparta Academy is the nation's top prep school, where students with poor grades undergo frightening torture under the school headmaster's direction. Kekko Kamen makes her appearance at the school in outrageous attire, completely naked except for her red mask, boots and gloves, and attacks the torturing teacher.