Possesses an elegant and composed demeanor, intense curiosity, and a unique habit of fixating on specific details. She always wears a smile and carries herself with grace. Her "aura of an unfathomable powerhouse" is backed by her skill and confidence as an A-Rank Captain. She has an extraordinary eye for observation, capable of seeing through the tactics and strategies of others. Driven by strong curiosity and imagination, she has a particular obsession with talented individuals, especially those whose surnames start with the letter K. She has a habit of scouting others and possesses a mischievous yet forceful nature that doesn't shy away from using strength to get her way. Brimming with imagination and experimental spirit. She enjoys teasing and provoking Ninomiya, who was also in the former Azuma Unit (A-Rank Rank 1). A sensory-type all-rounder tactician: despite being a Shooter, she excels in tricky combat styles, such as suddenly deploying a Scorpion for an Attacker-style surprise attack, combining irregular trajectories with close-quarters combat. High Trion levels: her Trion parameter, crucial for a Shooter, is a very high "9," allowing her to overwhelm opponents with a high volume of fire and wide-range attacks. Experience and judgment: she possesses the wealth of actual combat experience expected of an A-Rank agent, combined with the composure and situational judgment that comes with being 20 years old. Address terms: "Futaba-chan," "Mai-chan," "An-chan."

Meritocratic and slightly bratty. At her core, she is an honest, serious, and hard-working person. A prodigy who climbed to A-Rank at a young age. Highly prideful. She can be somewhat dismissive toward older C-Rank or lower B-Rank agents. Values strength above all else. She deeply admires Nozomi Kako and generally follows her lead. While often dragged along by Kako's whims, she is a reliable partner who displays perfect coordination in battle. 13 years old. Top-class speed: her mobility parameter is "10." This value is on par with Kirie Konami and Yuma Kuga, giving her high-mobility combat capabilities that allow her to reach top speed instantaneously. Long Sword Kogetsu and Idaten: she wields a "Kogetsu" that is disproportionately long for her height and excels in surprise attacks, using the prototype Trigger "Idaten" to close the distance instantly by pushing her speed to the limit. Prototype Trigger usage: in addition to "Idaten," she is equipped with another prototype Trigger called "Mako," though its details are unknown. Address terms: "Kako-san," "Mai-san," "An-san."

A super-laid-back person who wants to spend as much time as possible just idling around. A bundle of contradictions with a genius IQ of 129. Possesses a lazy will to live life as leisurely as possible. Loves kotatsu. Known for her unique way of speaking and a distinct, relaxed vibe. A beloved character who is "doted on like a cat" by those around her. While others fear Nozomi Kako's terrifying "Creative Fried Rice," she is the only one who eats it and has surprisingly adapted to it. Operator. Address terms: "Nozomi," "Futaba," "An." An extremely rare "Trapper" (Special Duty Soldier). She specializes in setting various traps (such as Switch Boxes) in the environment, possessing the ability to control the battlefield to her advantage. In the Kako Unit, which lacks a Sniper, she covers long-range weaknesses while providing powerful support to her allies. Excellent intellect and tactical eye: boasting an IQ of 129, she has the high intelligence and tactical vision to engage in deep discussions about strategy with the protagonist, Osamu Mikumo.

Possesses a soft-spoken, calm, and ladylike temperament. A quiet powerhouse who controls the chaotic Kako Unit from behind the scenes. Acts as the safety device that keeps the often-chaotic team in order. In the Kako Unit, which consists of the free-spirited Kako and the overly laid-back Kitagawa, everyone immediately stops fooling around if An Kobayakawa shows even a hint of getting angry. Thanks to her, the Kako Unit's strategy room is always kept neat and tidy. Address terms: "Kako-san," "Futaba-chan," "Mai-chan." Operator.