Akari Mamiya

Akari Mamiya (間宮 あかり, Mamiya Akari?) is the main protagonist in Hidan no Aria AA. She is a first year freshman in the Assault Department. She idolizes the legendary Assault S-Rank Aria H. Kanzaki and aspires to be a great Butei just like her. Despite being a lowly E-Rank, she also dreams of being taken under Aria's tutalage despite the latter's record of rejectng most Amica candidates. In a twist of luck for Akari, however, she managed to pass Aria's test and has become her offical Amica.

Akari is a girl with short honey-blonde hair tied in two ponytails, giving her a childish appearance. She wears the standard Butei high girls uniform and her two white ribbons are tied into her hair. Akari also has medium purple eyes. She has a petite physique, similar to Aria's, and according to Kinji Tohyama, Akari is "shorter and flatter."

Akari is typically clumsy and carefree, however has been shown to be protective of her friends, especially if she doesn't know someone who's getting close to those she cares about. This is shown when Aria is trying to get close to Kinji Tohyama, and Mamiya follows him, albeit out of slight jealousy.

Following the destruction of her family home by IU, Akari has grown a complex towards using her family arts. In the beginning, she was a faithful student towards her family's teachings but the death and destruction that followed because IU was after their deadly secret scarred Akari. Since then, she's been very hesitant of fighting aggressively and actively plays the part of the fool in order to avoid confrontation.

Micro Uzi
Tactical Knife
Colt Government Model M1911

Firearms Usage: At first, Akari appears to be terrible at handling weapons. During a mock battle, she failed to even graze Urara Takachiho who remained completely static. In Home Visit, however, it is revealed she is actually very proficient in using firearms when she was able to strike a test dummy in both eyes, the head, throat, and heart without looking. Her proficiency is the result of her upbringing as a member of the Mamiya clan

Tobi-Ugachi: Akari is trained in Tobi-Ugachi, a killing technique that is used by shinobi in order to disembowel their targets with their bare hands. Not wanting to use it for a lethal purpose, Akari adapted the art in order to neutralize rather than kill. The first instance of this was when she managed to snatch her Amica request form back from Raika, who towers above her by at least a foot and is physically the strongest in her group of friends. Most notably, she snatched the keys out of the ignition of a moving car as she was struck, which surprised even Aria. However, it would appear that the skill is a purely defensive skill. During the final minutes of the Amica trial, Akari asked to Aria to strike first that resulted in Akari successfully taking the emblem, but when Aria challenged her to steal her gun back, attempt after attempt was thwarted by Aria thus indicating the technique is meant to be used to turn an assailant's momentum against them.

Endurance: Akari has been shown to have quite a sturdy body. After she was struck by a speeding vehicle, she reacted to it as if she took a hit to the back of the head. She's also been shown to keep up with Aria to some degree, albeit with a lot more difficulty and less finesse.

Choutei: Akari has been shown to occasionally manipulate electricity with her bare hands. When Urara was stuck in a barrel as the work scaffolding around them was collapsing, Akari destroyed the barrel in a bright flash of light after attempting to call upon a spark.