Joumae Saori Gender: Female Age: 17 Height: 167cm Birthday: September 22 Hobby: None Personality: Initially appeared as a cold-blooded villain and the leader of Arius Squad, but after realizing she was brainwashed by a distorted ideology, she transformed into a serious individual who carries the weight of responsibility and atonement. She possesses a steel-like mentality and outstanding combat and tactical skills, even showing a genius side in her studies. Contrary to her quiet impression, she is the type to speak her mind until the end. However, having grown up in an abnormal environment, she lacks basic social common sense and often shows a clumsy side by performing eccentric actions with a dead-serious attitude. Despite her boyish appearance, she also has a girlish side, such as liking cosmetics and cute designs. School: Arius Branch School (2nd Year) Club: Arius Squad (Leader) Weapon: Arius Assault Rifle (SIG Sauer M400 EPR + P226 Mk.25 Navy)

Imashino Misaki Gender: Female Age: 16 Height: 163cm Birthday: January 13 Hobby: Spending time alone Personality: A pessimistic individual deeply steeped in the distorted ideology of the Arius Branch School, viewing life through a cynical lens. She shows physical vulnerabilities such as claustrophobia and pollen allergies, and she is blunt and uncooperative, rarely opening her heart to others. However, after becoming a leader in the squad, she lives with a sense of responsibility and gradually tries to get along with those around her. Over time, her emotional expression becomes more natural, as she begins to joke or enjoy festivals. Surprisingly, she has a soft spot for cute and cozy things like teddy bears and fluffy pillows, showing a tough-exterior-soft-interior side that deeply cherishes those she has opened up to. School: Arius Branch School (2nd Year) Club: Arius Squad Weapon: Saint Predator (General FIM-92 + Ruger LCR)

Tsuchinaga Hiyori Gender: Female Age: 16 Height: 155cm Birthday: January 8 Hobby: Collecting magazines Personality: While she may look like a gloomy and pessimistic student on the surface, she is actually the primary comic relief of Arius Squad, playing the role of mood maker with her unique shamelessness and nerve. She is surprisingly clingy, shamelessly accepting the Teacher's help and begging for more things to be bought for her, and she is honest with her emotions, sometimes delivering blunt, unintended verbal blows. However, having survived a harsh environment, she retains a sense of tenacity and gratitude, showing a warm side that appreciates kindness and never betrays those she holds dear. She has a unique hobby of collecting magazines, especially fashion magazines. School: Arius Branch School (2nd Year) Club: Arius Squad Weapon: Identity (Denel NTW-20)

Hakari Atsuko Gender: Female Age: 15 Height: 158cm Birthday: January 20 Hobby: Tending to flowers Personality: Despite living a controlled life as a 'Princess,' she is a bright, curious, and playful student. She serves to lighten the mood in the dark atmosphere of Arius Squad and has the friendliness to approach others without hesitation. Though she looks gentle, she possesses surprising initiative and boldness, such as calling for the Teacher whenever she's bored or sneaking into schools. While she is generous toward herself, she does not tolerate her loved ones being mistreated, showing a firm and decisive side when necessary. School: Arius Branch School (1st Year) Club: Arius Squad Weapon: Scorpius (CZ Scorpion EVO 3 + Axon X26)