Mahou Senshi Extra Stage 2 ~Gakuen Kangoku~

The masked man, Dirac, is a criminal exiled from his own world and unable to return because the door lies beneath his mask. He is bored with the peacefulness of this world but is now holding the Queen Justice captive because he needs her power to achieve his goals. He plans to steal the power of other heroines to build up enough for his mission.