New Century Succubus Canon · The Mystery of the Iron Mask Episode 1 / 6
Rumors of a mysterious "Iron Mask" haunt an academy where girls are disappearing. When a student named Sena is targeted by a powerful entity seeking the "First Sheath," Mao and her guardian Akira must intervene. Amidst hidden secrets involving the school's administration, a battle ensues to save Sena from a sinister energy shield that leaves her in a state of blissful torment.
