Aria Holmes Kanzaki

Aria Holmes Kanzaki is a 2nd-year high school student who belongs to the assault class. She's half-English and half-Japanese. She's small enough to be mistaken for a grade school kid, but her skill as a Butei is S rank. Her weapons of choice are a Chrome and Steel M1911A1 Government Model and two swords (hence the name "Quadra Aria").