J.C. Staff's latest anime. The series takes place in a world where ESPers are a normal thing and technology is top of the line. Kamijou Touma has always had unbelievably bad luck. However with that horrible luck, he is also able to negate anything that happens to him with his right hand. One day he finds a girl airing off on his guardrail. It turns out her name is Index, and holds 103,000 books of magic within her head which a magical organization is after.
I guess...that's pretty much the major plot line.
I'm actually liking this series so far. It might be a bit of J.C. Staff doing it, that I've is doing the music, dunno, it could be that the I've girls are doing the OP, which generally means the anime has quite a bit of potential, dunno.