Masataka Ninomiya Position: Shooter Age: 20 Rank: 2nd Overall, 1st among Shooters Leader of the B-Rank 1st place Ninomiya Squad, belonging to Border Headquarters. He possesses a high-handed and confident attitude backed by his skills as the top Shooter and 2nd overall. He shows respect to talented individuals but is extremely harsh toward everyone else. On the other hand, he possesses a stoic side that allows him to bow his head when necessary, such as when he became an apprentice to Izumi—who was younger and lower-ranked—to learn techniques he lacked. Overall, he is a man who is strict with both himself and others. Members: Sumiharu Inukai: A Shooter with a sociable personality and a wide circle of friends. At first glance, he appears to be a highly communicative extrovert; according to Kakizaki, he can get along with anyone. Shinnosuke Tsuji: An Attacker whom Inukai calls "Tsuji-chan." His cool appearance and demeanor give a slightly cold impression, but he enjoys hanging out with Inukai and Yoneya after missions and loves dinosaurs. However, he is terrible with the opposite sex; he finds it difficult to even make eye contact, let alone speak, with women outside of his teammates.

Osamu Mikumo Position: Shooter Leader of B-Rank 2nd place Mikumo Squad (Tamakoma-2). As Yuma described him as a "demon of helpfulness," he has a personality that drives him to help others without regard for his own safety. He uses tactics involving Spider to improve the environment for his allies, making it easier for Yuma to fight while hindering opponents. Yuma Kuga Position: Attacker Side Effect: Lie Detection Uses Scorpion and Grasshopper. A realist with rational thinking shaped by survival experiences in his youth and his father's teachings. He is merciless toward enemies but shows full courtesy to benefactors and those he deems superiors, so he is by no means uncooperative. He possesses extraordinary combat ability based on practical experience gained from life as a mercenary and a wealth of adaptability. Chika Amatori Position: Sniper Possesses an extremely quiet personality and cares for others more than herself. Due to past trauma, she tends to avoid asking others for help and often takes self-sacrificial actions. She is Border's number one "Trion Monster." However, her weakness is that she cannot shoot people. Hyuse Position: Attacker A serious personality that matches his formal way of speaking. He has the observational power to view things objectively and provides accurate tactical analysis. His swordsmanship is skilled enough to trade blows with the No. 6 Attacker, Ikoma, using Kogetsu. Upon his promotion to B-Rank, he added Viper and Escudo to his triggers, apparently to fill the gaps in Mikumo Squad. Normally, Escudo is a trigger with high trion consumption, but Hyuse handles it with ease due to his own massive trion capacity.

Masato Kageura Position: Attacker Scorpion user. Leader of B-Rank 3rd place Kageura Squad. Formerly an A-Rank 6th place squad, they were demoted due to a violation of squad regulations, but his skill is high enough to hold a winning record against the No. 4 Attacker, Murakami. His Side Effect is "Emotional Reception," which allows him to perceive the emotions of people around him. Hiro Kitazoe: A Gunner whose usual soft-spoken manner puts those around him at ease. He specializes in indirect bombardment, scattering bullets based on radar and operator instructions, though his aim is rough. This is why he is called the "Random Meteora" user. However, his destructive power is high, enough to blow away a single house and knock down surrounding utility poles. Yuzuru Ema: A Sniper whose skill is high enough to engage in "play" with Toma during sniper training. He has a very high sense for shooting, and the precision of his marksmanship, honed by Hatohara, is described by Natsume as "seriously technical." He can snipe moving targets even with the slow muzzle velocity of Ibis and can hit targets even at close range, demonstrating high-level sniping ability.

Tatsuhito Ikoma Position: Attacker Leader of B-Rank 4th place Ikoma Squad. A man with stiff-looking black hair in an all-back style, hailing from Kyoto. A man with a "sauce-face" look, characterized by thick, sharply set eyebrows and downturned corners of the mouth. He wears goggles during combat and, for some reason, always strikes a pose looking directly at the camera in logs. As the No. 6 Attacker, his specialty, the "Ikoma Senku," has a maximum range and reach of 40 meters. He rarely speaks proactively about strategy or the battle situation during meetings or actual combat. Satoshi Mizukami Position: Shooter He plays the role of the mediator within the free-spirited Ikoma Squad, often acting as the straight man to Ikoma's antics. He often has over-the-top reactions when dodging enemy attacks; he might not intend to be funny, but he comes across as somewhat comical. Koji Oki Position: Sniper He uses Grasshopper for aerial mobility to quickly secure sniping points and can spot enemies from high ground. While snipers are generally at a disadvantage if found, he shows a composed demeanor that says "come at me if you're coming" even when spotted by the enemy. Kai Minamisawa Position: Attacker Uses Kogetsu and Grasshopper. He has a cheerful personality but seems to be a bit of a jokester, saying random things like having watched Tamakoma-2's rank match footage "20,000 times" or boasting that he will stop the high-priority target Yuma himself, only to be shut down by his teammates. However, his skill is top-tier, having reached Master Class (over 8,000 individual points) before.

Kazuaki Oji Position: Attacker His constant smile gives off an air of mental composure. He is a sharp individual with a quick mind, excellent at reading the board and his opponent's thoughts, but his eccentric pace stands out, such as boldly calling squad members by nicknames (which he came up with) while in the commentary booth for rank matches. He is an unorthodox Attacker who fights using Kogetsu in his left hand while switching between Hound and Scorpion in his right. Kazuki Kurauchi Position: Shooter Primarily uses Hound. Within Oji Squad, where everyone carries Hound, he serves as the keystone for mid-range combat. While he naturally falls behind Snipers in terms of range and muzzle velocity, he possesses sufficient power as a Shooter. Yutaka Kashio Position: Attacker Possessing a serious personality, he immediately speaks up if he has objections or questions regarding a strategy. His main weapon is Kogetsu, but he fights like an All-Rounder by incorporating Hound. He is seen utilizing the knowledge gained from squad meetings effectively in battle. He is the type who fights while constantly thinking.