Toaru Majutsu no Index Manga Volume 12 is the 12th manga volume for the Toaru Majutsu no Index Manga. The tankobon is an adaptation that deals with the first half of the 9th Index light novel volume. The Daihaseisai begins and Academy City is opened to the public to view the great sports tournament between the espers of the city. But not all is what it seems, for behind the esper tournament, a secret battle is about to take place. The Anglican Church contacts Academy City regarding an upcoming trade of a spiritual item that could tip the balance of the magic side and the world as a whole, and Kamijou Touma is once again dragged into it.