Freadia Strikers (フリーディア＝ストライカーズ Furīdia Sutoraikāzu?) is a member of Necessarius and the supervisor for the Amakusa's admission test in Toaru Majutsu no Index SS: Necessarius Special Admission Test. Her actions in the sidestory make her out to be the direct antagonist in the narrative. She portrays a Javert-like character, as she relentlessly chases down the Amakusa Christians as part of her mission, convinced of their guilt, while they seek out the villain and all the while trying not to harm her.