The tankōbon 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.
The largest event in Academy City has begun, the Daihaseisai!!
All the schools that exist in the city participate in the ultra-large scale sports festival, the Daihaseisai. Behind the scenes of the busy event, a courier that was hired by the Roman Catholic Church has entered the city...! Highly popular! The long awaited 12th volume depicting science × magic action has been finally released!!
Nella città-studio, Toma Kamijo è un liceale come tanti, ma con la sua mano destra è in grado di annullare qualunque potere anomalo. Una mattina la vita del ragazzo prende una piega assurda quando trova stesa sul suo balcone Index, una suora bambina che custodisce nella memoria ben 103.000 grimori, e che appartiene alla Chiesa Puritana d’Inghilterra! In questo numero si apre il sipario sul festival di una settimana che si tiene ogni anno in città, una manifestazione che coinvolge tutta la comunità con eventi di ogni sorta. Ma dietro le quinte c’è chi non smette mai di tramare nell’ombra...
Academy City is hosting its annual sports festival, and the event is drawing spectators from around the world. Not every visitor is on hand to enjoy the spectacle, though. With smugglers afoot, it seems Touma's rotten luck will be getting a solid workout...
