Commander of Special Task Force A-01. Rank: Captain. Position: Gun Interceptor. Leader of A Platoon. Age: 23. Contrary to her cold and perfectionist impression, she is very caring and looks out for her subordinates. She is reportedly particularly good at giving relationship advice.

Vice Commander (Number 2) of Special Task Force A-01. Rank: Lieutenant. Position: Storm Vanguard One. Leader of B Platoon. Brave, cheerful, and dynamic in behavior, but hides a sensitive heart. She is a close friend and good rival to her classmate Haruka Suzumiya. She has a short temper and is frequently teased by Misae Munakata. She has a low tolerance for alcohol and becomes a messy drunk.

Number 3 of Special Task Force A-01. Rank: Lieutenant. Position: Gun Interceptor. Leader of C Platoon. She bewilders those around her with unpredictable words and actions. She is often seen with Touko Kazama, leading to rumors about their relationship.

Senior Second Lieutenant of Special Task Force A-01. Position: Blast Guard. Soft-spoken, neat, and ladylike. However, she is a fast eater. She possesses a broad perspective and looks after the unit members both on the battlefield and in the rear. She also plays the role of mediator between the strong personalities of the vanguard Mitsuki Hayase and the rearguard Misae Munakata.

Senior Second Lieutenant of Special Task Force A-01. Position: Gun Sweeper. Cheerful and frank, but with a hot-blooded side. She is Chizuru Sakaki's best friend and graduated from the training academy to be commissioned six months early. Haruka Suzumiya's younger sister. She served as a squad leader during her time as a cadet. She admires Mitsuki Hayase and aims for a Storm Vanguard position to stand as her equal.

Senior Second Lieutenant of Special Task Force A-01. Position: Impact Guard. Classmate of Akane Suzumiya. While she has a cool, pragmatic, and dry side, her bright and friendly personality prevents conflict with those around her. She has two younger brothers awaiting conscription. Formerly of the 207A Training Squad. Killed in action during Operation Ko-21.

Responsible for theater control for Special Task Force A-01. Rank: Lieutenant. Position: Command Post Officer. Airheaded, kind, and gentle, but possesses a strong heart. Classmate of Mitsuki Hayase and older sister of Akane Suzumiya. She suffered an accident during the Combined Combat Maneuvers, ending her path as a surface pilot, but she usually never lets those around her feel that burden.

A member of Special Task Force A-01 (commonly known as the Isumi Valkyries). A survivor of the BETA invasion of Sado Island. She has a quiet and shy personality but feels comfortable around Michiru Isumi.