『Akari Mamiya』

A female student attending Butei High School in the Assault department who greatly admires Aria that borders on obsessiveness. Akari is typically clumsy and carefree but is known to be protective of her friends. She and her younger sister Nonoka are two of the few survivors of the Mamiya clan, a clan of assassins that operated during the days of the shogunate and specialized instant-kill techniques. In modern Japan however, their techniques and unique poisons are no longer used and are only passed down in order to preserve them but their estate was destroyed, Nonoka was poisoned and their mother Misuzu was presumably killed by Kyouchikytou and the organization IU before the events of the story. Akari joined Butei High School because she wanted to protect and save others instead of killing which is one of the reasons she greatly admires Aria and also why she refuses to use her gun on criminals. However, she is still capable of using her family's techniques if she is forced or if the situation requires it. Despite her background and experiences, Akari is clumsy but cheerful, optimistic and friendly which gains her new friends and even admirers. She uses a Colt M1911 like Aria who takes it from her as part of the Amica test wherein Akari must take to steal it back. She also possesses a 25-round Micro Uzi and tactical knife. She eventually succeeds and becomes Aria's official Amica. She is known to greatly dislike Kinji due to his closeness to Aria and because he admitted to finding her annoying.