“Kivotos's Greatest Mystery,” “Horus of the Dawn” A student of Abydos High School and President of the Abydos Foreclosure Task Force. While she usually gives the impression of being a laid-back slacker, she was once treated as a person of extreme caution by students from other schools, including Hina, due to her immense skill. In one particular battle, she handled numerous weapons with such speed that she spent nearly an entire day overwhelming her enemies single-handedly. Her lazy personality and speech are prominent, and she is often scolded by the serious Serika. She jokingly refers to herself as an "old man." Though she usually acts like a daydreamer, Hina once remarked upon meeting her after a long time that she had changed so much from her first year that she seemed like a different person. Two years ago, her strength and combat record were so formidable that she was marked as a high-priority threat by other schools. Currently, her sharp edge has mostly receded, but she remains the undisputed strongest in Abydos, having easily defeated all of her juniors and enemies alike on her own. Her unique weapons are the shotgun "Eye of Horus" and a ballistic shield.

“The Walking Strategic Weapon” President of the Justice Task Force, the public safety organization of Trinity General School. She is a literal monster who crushes enemies so thoroughly they are described as "flattened empty cans." Her physical prowess is such that she remains unfazed after being hit by a train and blown 10 meters away, and she possesses an incredible recovery speed, capable of healing from heavy wounds overnight while continuing to fight. She naturally wears bizarre, distorted expressions. Her mouth sometimes stretches wide as if torn, and her facial changes are generally eccentric. However, she never directs hostility toward innocent students and is actually quite quiet around them. Her unique weapons are twin-wielded shotguns, "Blood & Gunpowder." Based on the lever-action mechanism, the model appears to be the Winchester M1887.

“Gehenna Academy's Ultimate Weapon” A student of Gehenna Academy and Head Prefect of the Prefect Team. In Gehenna Academy, where freedom and chaos swirl, her strength as the guardian of order is the real deal. It is said that "she alone is equal to half of the Prefect Team" (meaning Hina equals the entire rest of the team combined). She is the absolute symbol and indispensable pillar of the Gehenna Prefect Team. A third-year student at Gehenna. As the Head Prefect, she leads the committee that governs the discipline and public safety of the academy and its autonomous districts. Her catchphrase is "how bothersome," and she maintains a lazy, weary demeanor. However, she is strict about rules and order and possesses a strong sense of responsibility—a sharp and sincere personality that seems out of place in Gehenna, whose catchphrase is "Freedom and Chaos." She also has a slightly high-strung side, such as getting bothered if books on a shelf aren't perfectly aligned. Her unique weapon is the machine gun "The End: Destroyer."

“Symbol of Promised Victory: Call Sign '00' (Double O)” Leader of Cleaning & Clearing (C&C), the public safety organization of Millennium Science School, and an agent with the strongest combat capabilities in Millennium. She boasts that no one can surpass her in close-quarters combat. She has fought fully armed agents while running down the side of a skyscraper, continued to fight with torn ligaments, and engaged in her specialty close combat inside an elevator ascending at 10G, showing extreme mental and physical toughness. Furthermore, she never overestimates her own individual power; she is a top-tier leader with the mental strength and command ability to rely on and deploy her subordinates and allies without hesitation when necessary. Though she has a small stature that could be mistaken for an elementary schooler, her expression is grim, and her speech and behavior are those of a rough, overbearing delinquent. Her height is her biggest sore spot, and touching upon it carelessly risks incurring her wrath. Her unique weapons are the submachine guns "Twin Dragon." The model is the SIG Sauer MPX. As the name suggests, they are a pair of submachine guns decorated with golden dragon patterns, characterized by the fact that the grips of each gun are connected by a chain.

A member of the "Tea Party," the student council of Trinity General School. Her combat ability is said to rival that of Tsurugi. She is a terrifyingly powerful individual in both offense and defense, capable of destroying several layers of building walls with her "bare hands" and remaining virtually unscathed after being hit by multiple thermobaric grenades. Her strength is so immense that even her fellow student council members treat her as a sort of deterrent. She excels most in chaotic brawls, where being overwhelmingly outnumbered poses no disadvantage to her. ...However, the most frightening point is that she is a student council member—a position that should theoretically be far removed from actual violence. She has a bright, innocent personality and is a self-proclaimed "selfish and moody person." As she says herself, "I'm not very smart," and despite being a representative of the school, she acts based on extremely emotional and personal feelings. There is often no particular intent behind her actions or words; she says what she thinks on the spot and frequently forgets it afterward. She is not fond of complex political maneuvering. Her unique weapon is the submachine gun "Quis ut Deus." Originally an ordinary Trinity-made submachine gun, Mika decorated it with all her heart.