Name: Ken Satori First person: I (casual/cheerful) Birthday: July 1st Age: 16 (High school student) Height: 171cm Blood Type: O Likes: Girls, hamburgers Affiliation: Border HQ, A-Rank #5 Arashiyama Unit (Sniper) Characterized by hair parted to both sides and narrow eyes. In the original color scheme, he has ochre hair and green eyes. A girl-crazy mood-maker. Due to his somewhat annoying attitude, he is often treated rather dismissively by others. Additionally, despite being a member of the Arashiyama Unit (Border's public relations face), he is frequently left out for various reasons (e.g., being stuck with a backlog of paperwork and chores during the B-Rank Rank Wars Round 1 commentary), putting him in a bit of an unlucky position. However, he is surprisingly considerate. He specializes in a style he calls "Twin Snipe," where he wields two Egret rifles simultaneously. In other words, he is a dual-wielding sniper. This is the result of his tireless effort to pursue both firepower and coolness (very important to him). He is famous for the line, "Did you see my Twin Snipe?" He possesses enough talent to be called a genius. While he loves girls, he has no specific type and likes all kinds of girls equally.

Name: Taichi Betsuyaku First person: I (energetic/casual) Birthday: November 27th Age: 16 (High school student) Height: 168cm Blood Type: B Likes: Neapolitan pasta, tomato-based dishes, making dioramas Affiliation: Border Suzunari Branch, B-Rank #9 Suzunari First / Kuruma Unit (Sniper) A boy who always wears a hat with earflaps. He has a bright and energetic personality but is a typical klutz who is restless and hasty. Even if he means no harm, he often ends up causing catastrophic damage as a result. He is frequently scolded by his operator, Kon-senpai, for making blunders or saying things that misread the room. He is the type to take the lead in doing things others dislike, and his way of thinking is somewhat off-kilter, leading to occasional wild outbursts. He has caused various unintended disasters, such as ruining two cups of instant noodles at once. He joined Border after being scouted from outside the prefecture (Kochi). His academic performance is disastrous, and he has the lowest grades among his classmates. He occasionally makes self-deprecating remarks.

Name: Yoshito Hanzaki First person: I (lazy/casual) Birthday: February 10th Age: 16 (High school student) Height: 160cm Blood Type: O Likes: Omelet rice, ice cream, napping, games Affiliation: Border HQ, B-Rank #10 Arafune Unit (Sniper) A boy who wears a baseball cap backward and frequently says things are "a drag." According to him, he doesn't mean he's sick or lacks motivation, but uses it in a way similar to how one might say something is "crazy" or "intense." He always has a lethargic expression and his catchphrase is "What a drag." Despite this, he never slacks off on his training, and his honed sniping skills are top-class. When he isn't wearing his hat, his bedhead is explosive. He has light-colored hair, sharp eyes, and distinct outer corners of his eyes.

Name: Hisato Sasamori First person: I (earnest/casual) Birthday: January 18th Age: 16 (High school student) Height: 169cm Blood Type: A Likes: Fried rice, croquettes, manga Affiliation: Border HQ, B-Rank #12 Suwa Unit (Attacker) Characterized by freckles and spiky black hair. He has a hot-blooded personality, often showing agony or shedding tears. While he used to act primarily on emotion, he has shown growth and acquired composure and a broad field of vision. In combat, he supports his team in various roles depending on the situation, such as acting as a shield for teammates, leading the charge, or performing surprise attacks. He is highly praised for his situational awareness and observational skills.