She is a Magic God, and was the leader of GREMLIN. She was originally a powerful being who refers to herself as a god, and was the primary antagonist of much of the early Shinyaku Toaru Majutsu no Index. After subjecting Kamijou Touma to much suffering, the both of them later come into a mutual understanding of each other's situation, which later allows for Touma to save her from the destruction that was eating her body. She later becomes 15 centimeters in size with much of her former power gone