Summary: Vol 1 - Toshokan Sensou (図書館戦争) (Library War) Vol 2 - Toshokan Nairan (図書館内乱) (Library Infighting) Vol 3 - Toshokan Kiki (図書館å±æ©Ÿ) (Library Crisis) Vol 4 - Toshokan Kakumei (図書館é©å‘½) (Library Revolution)