Another A.Akari Mamiya is a first-year student at Tokyo Butei High School with a strong admiration for Aria, though she is the lowest-ranked in class and is ranked E-class. Despite how large the odds are stacked against her, Akari applies to become Aria's "Amica", an underclassman who receives training from an upperclassman. Deciding to give her a chance, Aria tasks Akari with retrieving her pistol from her within an hour...