Tatakau Shisho: The Book of Bantorra (2009)

All the dead people of the world have been turned into 'books' which are stored in the Bantorra library. A young boy named Koria Tonisu has had his memory erased and his chest embedded with a bomb in order to kill Hamyuttsu Meseta, the world's most powerful armed librarian. However, he soon falls in love with her at first sight and gets involved in the great war over the library.