Orsola Aquinas (オルソラ＝アクィナス Orusora Akwinasu) is a nun-in-training and is a major supporting character in A Certain Magical Index. She is a magician and once served under the authority of the Roman Orthodox Church by decoding various books and codes and also preaching and spreading Christianity all throughout Pagan Nations.
She once tried to use her decoding abilities to decipher and destroy the Book of The Law prompting the Roman Orthodox Church to go after her and force her into refuge in Academy City. She's since than defected to the English Puritan Church and now serves as a member of Necessarius for protecting her and is an ally and assistant of Touma Kamijou. Orsola herself, still remains a Roman Catholic and is devout to the faith but serves the Anglican Church instead.
Etymology
Orsola's name istelf is the Italian form of Ursula meaning "Little Female Bear" and may be a reference to Saint Ursula. Her name Aquinas is most likely a reference to the famous Christian Theologian of Thomas Aquinas.
Appearance
Orsola's exact true age is left unknown but she appears to be of the same age as Touma's, a teenager. Despite her young and teenage appearance, she has very mature features on her body including large breasts and a very adult-like womanly figure as revealed in her attira. She wears a traditional Roman Catholic nun robe/habit along with white gloves and a head dress/wimple that covers her head. Her habit is unmodified unlike Agnese'. Beneath her robe Orsola wears a long white robe beneath her habit that covers her underwear and has short blond hair and blue eyes.
Personality
Orsola is a very kind and gentle person in general. She is always being forgiving and is very merciful and selfless as well. This is demontraited when she has a positive and kind interaction with Agnese Sanctis despite being a victim of hers. She is also very charismatic as demontrated when she made a speech to the Agnese Forces about the Roman Orthodox Church and the forces that helped her and when she made a speech to the women of Necessarius about the upcoming war and what stance they should take. Her speech skils and charisma stems from how she spent much of her time preaching and spreading Christianity all throughout predominately Pagan Nations. Orsola also acts as an airhead as documented by Touma with her behavior and is very childish but ca be serious sometines.