 If you liked
Toaru Majutsu no Index
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 ...then you might like
Magdala de Nemure
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Involves the church and another opposing ideal that is science. Index of Toaru and Fenesis of Magdala have similar characteristics, both in personalities and in appearance. Both heroines are knowledgeable about the church but not so much in science. The heroines are also suffer from curses early in the series. The main protagonists in both series (Kamijou and Kuusla) are considered heroes to the nuns.