Name: Masataka Ninomiya Age: 20 Height: 184cm Likes: Yakiniku, ginger ale, talented people Affiliation: Border HQ, B-Rank 1st, Ninomiya Unit Rank: B-Rank Agent (Captain) [Traits/Personality] A tall man with brown hair parted in the center. His skills are among the best in Border, holding the No. 1 spot for Shooters and No. 2 in the overall individual rankings. He is flawless, with decent physical athletic ability even in his real body. A man of few words with a default stern expression, he possesses a permanent poker face and an attitude that can be seen as arrogant and blunt. He is always acting superior and is harsh with his words. Calm and collected, he rarely shows emotion and is a strict meritocrat. Though he speaks little, he has a strong sense of responsibility toward his teammates and considers their growth and safety. He is the former student of Kohei Izumi from Tachikawa Unit.

Name: Sumiharu Inukai Age: 18 Height: 176cm Affiliation: Border HQ, Ninomiya Unit (Gunner) Likes: Airplanes, hot dogs, grapes Rank: A-Rank Agent → B-Rank Agent (B-Rank 1st, Gunner of Ninomiya Unit) Role: Gunner [Appearance] One of the Ninomiya Unit trio, he has bright hair swept forward and a smile that gives off a slightly flirtatious or 'playboy' impression. He is the only one who doesn't wear a vest under his suit uniform, leaving his tie fluttering. [Personality] Social, friendly, and a mood-maker who can talk naturally with anyone. He always maintains a relaxed attitude, but shows a calm and calculating side in battle. He excels at information gathering and coordination with allies, acting as the lubricant for Ninomiya Unit. A bit of a flirt.

Name: Shinnosuke Tsuji Age: 17 Height: 178cm Affiliation: Border HQ, B-Rank 1st, Ninomiya Unit Likes: Dinosaurs, cream puffs, butter dorayaki Rank: B-Rank Role: Attacker [Personality/Traits] A cool-headed, handsome youth with sharp eyes who, alongside Captain Ninomiya, gives off a composed impression. He has a serious and gentle personality. He is extremely shy, especially around women, to the point of getting nervous, but he is sincere and cares for his comrades. He specializes in close combat and is a solid, reliable fighter without being flashy. He trusts Ninomiya and Inukai deeply and supports the team's stability. If a woman approaches him or gets close, he flusters and blushes slightly (this does not happen with Hiyami). Apparently, he does have a desire to be popular with girls, so he's trying his best.

Name: Aki Hiyami Position: Operator Age: 17 Height: 155cm Likes: Sweet and sour pork, yogurt, baths [Description] A young woman with a calm, mature atmosphere who supports the team members with cool-headed precision. She is generally gentle and caring, supporting the unique team members from behind the scenes. Excellent at situational analysis and information organization, she is highly trusted by the team. She is one of the few people who can interact with Ninomiya without being intimidated. The Operator for the B-Rank 1st team, Ninomiya Unit. Her hairstyle is a bob cut with straight bangs. She is called 'Hyami-san.' While her academic and operating skills are high, she is very poor at physical exercise, having even less stamina than the shut-in Sayoko, making her effectively the member with the lowest stamina in Border. She also has a surprisingly confident side.