Hiroko Iwasaki (Sexy Mask) is a female teacher at the evil den "Shuten Gakuen". He fought evil day and night to restore love and freedom to the school. A terrifying demon in such a sexy mask, the devil's hand of an unequaled mask approaches! Fumihiko Kuroda, aka Unequaled Mask, impersonates a teacher at Shuten Academy and succeeds in capturing the sexy mask by using the students who worship the sexy mask. - The unequaled mask that absorbed the energy of the sexy mask decided to let the students who are believers commit it as a shame blame on the weakened sexy mask ... - The finish is to ascend the sexy mask with the sticky metamorphosis play of the unequaled mask! ［BAD END］