In a world where science clarifies supernatural powers. In a huge college that has power development in its curriculum. To a resident high school student, Kamijou Touma, a pure white sister appears. She calls herself "Index" and says that sorcerers are chasing her. Thus, Kamijou Touma enters the world of the occult.
this anime, like it's related anime railgun, is a great anime and a must see. if you like animes with a bunch of kids with supernatural powers battleing in a school then i highly recommend this one. full of action, adventure, magic, battles, suspense, comedy, and a bit of romance. it has a wonderful curious story and lovable characters.