Full Name: Joumae Saori School: Arius Branch School, 2nd Year Club: Arius Squad Gender: Female Age: 17 Birthday: 9/3 Height: 167cm Habit: None Signature Weapon: Arius Assault Rifle (Assault Rifle) Personality: Always serious and blunt, but says everything that needs to be said. She is cool-headed yet honest, and possesses immense mental fortitude.

• Background: The leader of Arius Squad. She is a genius with innate talent. She proved her talent by rising to the position of squad leader, and her combat power and leadership are exceptional.

  However, having grown up in an abnormal environment, she lacks common sense and social skills in daily life.

Full Name: Imashino Misaki School: Arius Branch School, 2nd Year Club: Arius Squad Gender: Female Age: 16 Birthday: 1/13 Height: 163cm Habit: Spending time alone Signature Weapon: Saint Predator (Rocket Launcher) Personality: Taciturn, blunt, and indifferent to others. She is calm and composed but holds a negative and pessimistic view of life. She has a very strong nihilistic streak.

• Background: A member of Arius Squad. Excellent at assessing the battlefield and making judgments, she serves as Saori's second-in-command. She generally takes a rear-guard position.

  She suffers from claustrophobia. Her complexion worsens rapidly and she becomes so sensitive that she may snap even when asked how she is doing. She also suffers from pollen allergies.

  Surprisingly, she likes cute things (especially teddy bears).

Full Name: Tsuchinaga Hiyori School: Arius Branch School, 2nd Year Club: Arius Squad Gender: Female Age: 16 Birthday: 1/8 Height: 155cm Habit: Collecting magazines Signature Weapon: Identity (Anti-Materiel Sniper Rifle) Personality: Timid and gives a gloomy impression. She has low self-esteem and a negative personality. Regardless, she is honest with her emotions and doesn't particularly hide them. In a way, she can be a bit shameless.

• Background: A member of Arius Squad. She is a sniper. Although she knows their actions are wrong, she carries out Saori's orders without complaint.

  She can understand the expressions of the consistently silent Atsuko to some extent.

Full Name: Hakari Atsuko School: Arius Branch School, 1st Year Club: Arius Branch School Squad Gender: Female Age: 15 Birthday: 1/20 Height: 158cm Habit: Tending to flowers Signature Weapon: Scorpius (Submachine Gun) Personality: Bright, curious, and somewhat mischievous. She is a mood maker who can even make Saori smile.

• Background: A member and the youngest of Arius Squad. She usually keeps her face completely covered with a gas mask and communicates via sign language. It's not that she can't speak.

  Called 'Princess' by the members, they treat her very well to ensure she lacks for nothing. Fitting the title of Princess, she lived a somewhat controlled life.

  She has a radical, action-oriented side, such as calling people out of boredom or sneaking into school at night.

  She loves flowers dearly. As soon as she chose flower-growing as a hobby, she gathered wild flowers to create a flower bed.