In a world where the war between humanity and the Demon King’s army never ends lies the Empire’s 11th Frontline Base. Karia Alexandra, a young woman who loves books above all else, is assigned there as a librarian. But behind her quiet dedication, she carries a secret missionone that could change the course of the war. Thus begins a “battlefield bibliotheca fantasy,” where knowledge and magic meet on the frontlines. Now, the highly anticipated manga adaptation is here!