Age: 16 Affiliation: Tamakoma Branch, Tamakoma First Position: All-Rounder Likes: Family, Tonkatsu The eldest of five siblings, he works many part-time jobs because his family is poor. He is the mentor in charge of Osamu Mikumo's tactical training. A shaggy, handsome guy. Appearance Shaggy black hair with a perm. Described in the series and official materials as a "shaggy handsome man" and "the most handsome guy in Border." Height: 178cm. Speech First person: I (俺/Ore - calm, masculine). Usually uses a calm manner. Based on polite/honorific language. Famous Quotes "I'm the shaggy handsome guy. Nice to meet you." "Sorry, that was a lie. Not a compliment, just a lie." Personality Always maintains a poker face and rarely shows emotion. A hard worker who is dedicated to mentoring his juniors and cares deeply for his family. He also has a side where he calmly tells lies to tease his easily deceived senior (Kirie Konami) while maintaining a serious expression.

Age: 17 Affiliation: A-Rank No. 1 Tachikawa Unit Position: Shooter Likes: Fried shrimp, Croquettes, Mandarin oranges, Full Attack A genius child boasting an abundant amount of Trion and overwhelming talent. A pioneer who first created composite bullets by fusing two different types of bullets in combat. Handsome. Appearance Bright blonde hair that is slightly messy and spiked. Sharp eyes and a mouth that often wears a fearless smile. Height: 175cm. Speech First person: I (おれ/Ore - casual). Basically based on a typical high school boy's aloof, frank, and lighthearted tone. Uses minimal honorifics for superiors and seniors, but has an elusive atmosphere. Famous Quotes "...Just kidding. Found you, Satori." "A hundred hits out of a thousand shots." Personality He prefers flashy Full Attacks using sheer volume, saying that if you fire a thousand shots, you'll hit something, so he is affectionately called a "Bullet Idiot" by those around him. Although his tone is light, his mind works very fast, and he excels at tactics that calmly observe the battle situation and outwit the opponent. He is generous in mentoring juniors, having taught the protagonist Osamu Mikumo the knack for composite bullets, and also shows a hard-working side as the straight man and babysitter for his selfish teammate Takeru Yuiga.

Age: 15 Affiliation: B-Rank No. 2 Tamakoma Second Position: Shooter Captain. Likes: Parents' home cooking, helping close friends, bridges His Trion ability is extremely low, barely different from an ordinary person, and his pure strength as a combatant is at the weakest level within Border. An intellectual captain who leads the team with unique tactics and networking. Appearance Square-framed glasses that give an intellectual impression. Short black hair with a slight wave. Often described as "average" or "ordinary" for better or worse, but possesses a very strong-willed, straight gaze during combat or negotiations. Height: 168cm. Speech First person: I (ぼく/Boku - polite, humble). Very polite to everyone and basically uses serious honorifics. Has the inner strength to clearly state his opinions to older seniors and powerful individuals without hesitation. Famous Quotes "It's because I believe that's what I should do." "I'm... not a hero." Personality Possesses overwhelming initiative to carry out actions he believes are right or necessary for others without hesitation, no matter how dangerous. He has a dogged determination to grow, fully aware of his own weakness, discarding his pride to bow his head and ask seniors for instruction. He tends to put his own life and safety second to protect others, leading those around him to worry, saying things like "He'll die if you leave him alone" or "He's dangerous."

Affiliation: A-Rank No. 7 Miwa Unit Position: Sniper Age: 17. Height: 177cm. Appearance Neatly trimmed light brown mushroom-cut hair. Long bangs and sharp, cool eyes. A classic cool handsome guy. Speech Speaks in a very calm, detached, and polite manner using sentence endings like "-da" or "-darou." Rarely loses his temper and always uses logical, efficient language. First person: I (俺/Ore - calm). Second person: You (あんた/Anta - blunt) / [Name]. Personality A thorough theorist who never shows agitation regardless of the battle situation. Also humble enough to honestly recognize the unconventional talents of others. Has a caring, big-brotherly side, warmly watching over and raising his junior Kodera and his disciple Akane.

16 years old. Member of B-Rank Kakizaki Unit. Ace candidate (All-Rounder). A skilled individual who competed for the Rookie of the Year title against current A-Rank members like Narasaka and Utagawa. Appearance Hair styled in a single braid in the back. Elegant and intellectual atmosphere. A serious-looking beautiful girl (Height: 159cm). Speech First person is "I" (わたし/Watashi - feminine, polite) using refined honorifics that suggest a good upbringing. Personality A reliable person who joined to support Kakizaki and devotedly leads the unit. Has very high tactical insight, such as immediately adapting to Chika's Lead Bullet upon seeing it for the first time in a rank match.

16 years old. Ace and Captain of B-Rank Katori Unit. A natural genius who can do anything immediately. Likes Kyosuke Karasuma (one of the Torimaru Girls). Becomes nervous and maiden-like in front of Karasuma. Appearance Long wine-red hair with straight-cut bangs. A beautiful girl characterized by sharp eyes with upturned corners (Height: 157cm). Speech First person is "I" (アタシ/Atashi - casual, feminine) using direct, informal speech. Often complains or grumbles with a moody, prickly tone. Personality Sullen when losing streaks occur, but extremely competitive at heart. Tends to dislike gritty effort because she can do anything without trying. Despite her complaining, she exhibits outstanding concentration and combat power when relied upon or when things click.

An extreme "ぶりっ子" (burikko) who adds "-nano" or "-damon" to her sentences to act cute. When angry, she uses onomatopoeia directly like "PUN PUN!" A massive attention seeker who firmly believes she is the cutest. Immediately shows her fangs or bursts into tears if ignored. Ugly. 16 years old.

Uses speech patterns like "-shi," "-zo," and "Dyufufu." Speaks rapidly with phrases like "My fave is too precious, I can't even" or "My vocabulary has logged out." Has extreme passion, staking his life on buying up all the merch or analyzing data for his favorite. Ugly. 16 years old.