Science and sorcery make for an explosive mix in a Certain Magical Index, an enthralling experiment in sci-fi adventure from the studio that brought you Toradora and Slayers Revolution! Kamijo is a student in Academy City, where people use science to develop supernatural abilities. The guys got a lot of heart luckily for a young nun named Index. She's on the run from a sorcery society that covets the astonishing 103,000 volumes of magical knowledge stored in her memory. When Index stumbles into Kamijos life, she find a faithful friend and protector, and while Kamijo's easily the weakest kid in Academy City, he's got something else going for him: The Imagine Breaker, an unexplainable power stored in his right hand that negates the powers of others. When scientists and sorcerers attacking from all sides, the Imagine Breaker will definitely come in handy; but it's Kamijos loyalty to Index that will be his greatest weapon in the fight to keep her safe.