Certain Magical Index the Novel 1, Paperback by Kamachi, Kazuma; Haimura, Kiyotaka (ILT), ISBN 0316339121, ISBN-13 9780316339124, Like New Used, Free shipping in the US

When Toma, a student with the ability to negate all supernatural powers, as well as his own luck, meets Index, a nun whose mind has been implanted with forbidden magical books, he unexpectedly finds himself at the center of a war.