In the story of the light novels, all the dead people of the world have been turned into “books” stored in the Bantorra library. A boy named Koria Tonisu has had his memories erased and his chest embedded with a bomb. He is sent to kill Hamyuttsu Meseta, the world’s most powerful armed librarian. However, he falls in love at first sight with this beautiful woman in charge of the “books,” and he gets enveloped in the great war over the library.
Source ANN

Animated by: David Production
Airing Schedule: Starts Oct. 2, 2009. Episodes unknown.
Thoughts: Crazy armed librarians and an anti-library cult…. what more could you want
Trailer:


Well. Now I’ve seen all 27 episodes and I’d say they pretty much fucked the whole anime towards the end. The first half of the series is great stuff but after that it becomes overly dramatic and “let’s all combine our powers to save the world”.