Ridovia
A Catholic nun introduced in volumes 9-10, Ridovia has what she calls an "ability"—the power to convert virtually anyone to Christianity, whether they're criminals, atheists, or rival magicians with no Church affiliation. She's best known for her ambitious (some might say aggressive) campaign to convert all of Academy City to Catholicism using a religious artifact known as Pietro's Cross.
Her methods and unwavering conviction make her a memorable antagonist, though fans often debate whether her conversions are genuine spiritual transformations or something more coercive given the supernatural nature of her power.
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