Amica

Amica (戦徒アミカ) is a Butei system introduced in the Hidan no Aria AA spin-off. A 2-person duo between senior and junior, the senior will provide guidance to a junior on a one-to-one basis for a one-year period. While boy groups are labelled Amigo (戦兄弟アミコ) and Amica (戦姉妹アミカ) for girls, contracts between mixed genders is possible.

A Junior must fill out a contract form stating their basic information. Such as their name, year, class as well as the details of the Senior they want to be an Amica with. The Junior must first take a test before the Amica Contract will pass.

Known Characters Under Amica Contract

 * Tohyama Kinji (2nd year Inquesta) - Fuuma Hina (1st year Lezzard)
 * Aria H. Kanzaki (2nd year Assault) - Akari Mamiya (1st year Assault)
 * Hotogi Shirayuki (2nd year SSR) - Shino Sasaki (1st year Inquesta)
 * Riko Mine  (2nd year Inquesta) - Kirin Shima (3rd year Intern/CVR) (Formerly during Riko's 1st Year/ Kirin's 2nd Year)
 * Raika Hino (1st year Assault) - Kirin Shima (3rd year Intern/CVR)

Emblem (エンブレム)
A 30-minute pratical test for Amicas, where the seniors test their junior. If the junior snatches the emblem from their senior within the given time frame, the contract is approved.

3 Day Cancel ( 3日内解消規則スリーデイズ・キャンセル )
If a dispute occurs between the senior and underclassmen within 72 hours after the Amica contract is formed, the contract is cancelled when the senior fails to protect the underclassmen. Contracting as the same group is invalid by all means.

Amica Group (アミカ・グループ)
When 2 or more Amicas form a group (limited to 5 people) for cooperative training, each Amica follows a different order.

Trivia

 * It is Italian for "friend".