Library War: The Wings of Revolution

Library War: The Wings of Revolution is a 2012 Japanese animated film adapting Library Revolution, the fourth and final volume of Library War light novel series by Hiro Arikawa, and a sequel to Library War (2008). Produced by Production I.G and distributed by Kadokawa Pictures, the film is directed by Takayuki Hamana from a script written by Kenji Konuta. The film follows the Library Defense Force protecting a novelist, who becomes the target of the Media Betterment Committee due to the resemblance of his book to a recent terror attack.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.