Roselia

Roselia Ishtaris (ロゼリア・イシュタリス, Rozeria Ishutarisu) is a supporting character of Seiken Gakuin no Makentsukai. She is the girl known as the Goddess of Rebellion, who saved Leonis Death Magnus when he nearly died from human's betrayal and turned him into a Dark Lord. She is the sole reason for Leonis' decision to rebuild the devil army after hibernating 1000 years.

Appearance
From Leonis' view, Roselia is a beautiful woman with long purple hair and golden eyes.

Background
She resurrected the boy once called a hero, changing him into a Dark Lord. She saved Leonis when he’d lost faith in this world, and then she went on to try to save the world itself.