Name: Sensei Affiliation: Federal Investigation Club Schale, General Student Council. Age: ? Birthday: ? Info: The only male and adult in Kivotos. He never loses his sense of justice and responsibility despite the various incidents occurring in Kivotos.

Name: Hayase Yuuka School: Millennium Science School Affiliation: Seminar Age: 16 Appearance: A neat and tidy appearance with dark blue twin-tails tied formally and blue eyes that exude an intellectual atmosphere. Height: 156cm Hobbies: Tapping on a calculator, organizing household accounts. Weapon: Logic & Reason dual pistols (Dual MP7 SMGs). A versatile weapon that deploys high-tech barriers to protect herself and allies. Traits: A genius calculation girl and strict treasurer who manages Millennium's massive budget.

Name: Tsukiyuki Miyako School: SRT Special Academy Affiliation: RABBIT Squad Age: 15 Appearance: A modest appearance with white rabbit-ear hair ornaments, pale purple hair tied in a neat anchor shape, and calm, clear eyes. Height: 156cm Hobbies: Reading SRT tactical manuals, drinking herb tea. Weapon: Rabbit-31 Suomi KP/-31 SMG. Traits: As the top entrant of SRT Special Academy, she is an elite squad leader with perfect tactical skills, cool judgment, and a strong sense of elite pride.

Name: Takanashi Hoshino School: Abydos High School Affiliation: Abydos Foreclosure Task Force Age: 17 Appearance: A cute appearance characterized by mysterious heterochromia and pink hair. Height: 145cm Hobbies: Napping, idling around. Weapon: Eye of Horus shotgun and a massive shield. Traits: She calls herself a lazy neighborhood 'uncle' with an 'Uhehe~', but she is actually a reliable senior and top-tier fighter who stands at the forefront to protect her school and juniors.

Name: Sorasaki Hina School: Gehenna Academy Affiliation: Prefect Team Age: 17 Appearance: A small and fragile appearance with purple wings and horns larger than her body, and voluminous silver hair with a hint of pale purple. Height: 142cm Hobbies: Resting (though she has almost never done it). Weapon: Destroyer MG42 machine gun. Traits: She dislikes bothersome things, but with her innate sense of responsibility and overwhelming strength, she is a 'walking strategic weapon' who practically handles Gehenna's security alone.