Follow TV Tropes


Characters / World Trigger A Class Agents

Go To

Back to the main character index

    open/close all folders 

     Tachikawa Unit 

Tachikawa Unit
An A-Rank unit led by Kei Tachikawa. It is ranked #1 amongst all A-Rank units in Border.

  • Badass Longcoat: Long, black ones to go with the badass agents of the squad. Oh, and Yuiga gets to have one too.
  • Punch-Clock Villain: During the Black Trigger Retrieval Arc.
  • Secret Keeper: Aside from maybe Yuiga, they're aware of Yuma's status as a Neighbour, thanks to having been sent after him.
  • Trash of the Titans: Their operations room is one of the messiest around, due to none of them being the tidy sort.

Kei Tachikawa
A-Class, Attacker
20 Years
Voiced by: ???

Leader of the Tachikawa Unit, part of the Expedition Force and both the #1 Attacker and overall agent of the entire Kido Faction. Has a long-standing rivalry with Jin.

  • The Ace: Number one Attacker from Border, not counting Amo, Shinoda, Jin and Konami who are outside the normal ranking.
  • Big Damn Heroes: Twice during the Second Invasion. He saves Murakami from some rabbits and also saves the entire Border building from a Neighbor kamikaze attack.
  • Blood Knight: Really interested in defeating new opponents, even Black Trigger users.
  • Book Dumb: When it comes to anything outside of combat, his intelligence is... uh. Yeah. His grades aren't as bad as Yoneya's, at least, but that's not saying much.
  • Brutal Honesty: At times, for example when saying that passion can not beat skill and strategy during the Nasu/Suzanari/Tamakoma battle.
  • Bunny-Ears Lawyer: Tachikawa is proof you can be a Book Dumb, Cloudcuckoolander Manchild and yet still be The Ace at the same time.
  • Childhood Friends: With Ren Tsukimi according to the manual.
  • Cloud Cuckoolander: Seems to be a little in discord with reality, and extra material cites many things he believes or does that imply he acts like a middle schooler most of times.
  • Combat Commentator: During the B-Rank Wars, along with Jin. Ninomiya wasn't very happy about his opinions, judging them as half-assed.
  • Compassionate Critic: When he essentially blames Suzunari-1's loss in the match against Nasu Squad and Tamakoma-2 on Ko losing to Yuma. While it was harsh, Kuruma believes that it just shows how highly Tachikawa thinks of Ko's potential.
  • Dual Wielding: Sometimes uses two Kogetsus at the same time.
  • Exotic Eye Designs: His eyes look... off. They resemble a fly eyes.
  • Fanboy: Of Azuma's combat commentary. While Azuma's famed for it, Tachikawa's the one person who, if he can't hear it in person, will go as far as to break into Sakurako's room just to listen to the recordings!
  • Friendly Rivalry: With Jin. They actually get along pretty well. He's also implied to have this with Konami, as side material notes them to be good friends and claim themselves to be superior over the other, hence why they don't use honorifics with each other.
  • Half the Man He Used to Be: Gets chopped in half by Konami, along with their enemy. It was all part of his plan.
  • Katanas Are Just Better: The Kogetsu, which is his favorite weapon.
  • The Leader: Of his unit.
  • Manchild: Quite similar to Jin, anxious as a kid to fight a strong and opponent and doesn't seem to take anything seriously. A character description even jokes about him wearing a black coat and two swords while being over 20 years.
  • Master Swordsman: Superior even to Jin in pure swordsmanship.
  • Morph Weapon: Using the trigger "Senkū" (Whirlwind) that can extend it's blade.
  • Nominal Hero: Not a bad person by any means, but he tends to be invested only in what's enjoyable for him. Even during the invasion, he's as carefree as ever, caring primarily about getting a good fight and getting back to his lunch.
  • Not So Different: For all his (friendly) rivalry with Jin, Miwa notes both of them are very similar.
  • Old Soldier: One of Border's first members after the Old Border period.
  • Perma-Stubble: Always sports a slight stubble.
  • The Power of Love: Averted. He explicitly says that if feelings were involved in a fight, he wouldn't be the number one.
  • Refused by the Call: He wasn't compatible with Fujin (which he's seen sulking over in a flashback) and thus couldn't compete with Jin for it, putting a halt to their rivalry until the present.
  • The Rival: A longstanding one to Jin at least till the latter received a Black Trigger and reached S-Rank.
  • Screw Destiny: Considers manipulating Jin's prophecies to have a different outcome this, even if the prophecy itself does happen.
  • Shirtless Scene: As seen here
  • The Slacker: Taking just enough classes to stay on school. It's implied that if it doesn't involve fighting, he is not interested.

Kōhei Izumi
A-Class, Shooter
17 Years
Voiced by: ???

A blonde-haired shooter of the Tachikawa Unit.

Seems to have little qualms about causing large collateral damage with his triggers.

  • Accidental Discovery: He discovered composite bullets by trying it out on a whim, essentially. It's why he's considered both a bullet fool and a genius.
  • Armor-Piercing Attack: The Gimlet-projectiles (a combination of two Asteroids) are specifically designed to damage heavy armor.
  • Beam Spam: When using the Hound or the Viper.
  • Birds of a Feather:
    • If wearing a Badass Longcoat in modern day Earth is a sign of Tachikawa being a Manchild, it probably says something about Izumi that he is A-OK with this uniform.
    • He gets along great with Yoneya (in their own fashion)—and, to a lesser extent, Midorikawa—thanks to both of them being rambunctious and somewhat ruthless but generally well-meaning teenage boys.
  • Combat Commentator: During the Mikumo vs. Katori vs. Kakizaki fight.
  • Destructive Saviour: Very prone to destroying buildings and streets during battles.
  • Fun T-Shirt: Seen wearing one with the inscription "1000 Shots 100 Hits", which pretty much describes his combat modus operandi. Apparently, Border made it specifically for him.
  • Guns Akimbo: Not so much guns as "projectile-firing cubes" but you get the idea.
  • The Gunslinger: Can use different types of bullets and even fusions for different attacks.
  • Homing Projectile: The Hound automatically homes onto targets while the Viper (and thus also the Tomahawk) can be manually guided.
  • In-Universe Nickname: "Bullet Fool", courtesy of Yoneya.
  • Long-Range Fighter: He only uses ranged Shooter-Triggers.
  • The Mentor: As a favour to Karasuma, he gives pointers to Osamu as a fellow Shooter.
  • Mix-and-Match Weapon: Can merge 2 weapons to create a mixture (Viper+Meteor=Tomahawk) or a more concentrated version (2xAsteroid=Gimlet) of it.
  • More Dakka: His modus operandi.
  • The Nicknamer: Calls Yoneya "Spear Geek".
  • Perpetual Smiler: Always cracking a smile, even while facing enemies.
  • Shirtless Scene: Only in this artwork though as of now
  • Trademark Favorite Food: Croquettes and fried shrimp.
  • Vitriolic Best Buds: Seems to be this to Yoneya of the Miwa Unit, who he "affectionately" calls "Spear Geek".
  • Worthy Opponent: Hairein acknowledges him as one.

Takeru Yuiga

A-Class, Gunner
16 Years
Voiced by: ???

The Gunner of the Tachikawa Unit.

  • Butt-Monkey: Of his squad and for good reason.
  • Foil: For Torimaru, who is the exactly the opposite of him: talented, popular, and poor.
  • The Ghost: Mentioned quite early, but not seen till chapter 109.
  • The Load: According to his teammates, though he is at least as skilled as an average B-Rank agent.
  • Nepotism: Only got into the strongest A-Rank squad because his parents are among Border's wealthiest supporters.
  • Rich Kids: The primary reason for his position.
  • Small Name, Big Ego: Thinks pretty highly of himself for being in the #1 A-Rank squad and is pretty rude towards lower ranking agents. He is however not very skilled by himself, which his teammates are happy to point out.
  • Tsundere: According to Izumi, he is this for Osamu since he scolds him just because he wants to keep playing with him.
  • Unknown Rival: For Torimaru, whom he hates.

Yuu Kunichika

A-Class, Operator
17 Years
Voiced by: ???

The Operator of the Tachikawa Unit. Has an impressive collection of video game consoles in her room.

  • Book Dumb: Her grades aren't stellar. Lampshaded when she's a Combat Commentator alongside Toma and Zoe, and collectively refers to them as the 18-year-olds with bad grades (which Zoe takes offence to—he's not as bad as those two!).
  • Combat Commentator: For the Mikumo vs. Ikoma vs. Ouji match.
  • Gamer Chick: Seen playing games with Izumi.
  • Messy Hair: She has really messy hair.
  • Mission Control: As an Operator.
  • Nerd: As evidenced by her habit of collecting video game consoles.


     Fuyushima Unit 

Fuyushima Unit
An A-Rank unit led by Fuyushima. It is ranked #2 amongst all A-Rank units in Border.

  • Power Trio: One of the very few three-person teams in Border.
  • Secret Keeper: Toma, at least, is aware of Yuma being a Neighbour thanks to having been sent after him. As Fuyushima wasn't involved with the mission, it's unclear if he knows.

Shinji Fuyushima

A-Class, Trapper
29 Years
Voiced by: ???

The leader of the Fuyushima Unit.

  • Cannot Talk to Women: Apparently struggles with women, both in dealing with them and in his lack of popularity with them.
  • The Ghost: Mentioned, but not seen until Chapter 73.
  • The Leader: Of his own unit.
  • Old Soldier: One of Border's first members after the Old Border period.
  • Perma-Stubble: On his chin.
  • Teleporters and Transporters: Can teleport allies to predefined spots from afar.
  • Trap Master: He is a "Trapper", an as-of-yet unknown Border position. As of right now the only known ability he's shown is his ability to tactically teleport allies at will.

Isami Tōma
A-Class, Sniper
18 Years
Voiced by: ???

A sniper of the Fuyushima Unit. He is part of the Expedition Force and ranked #1 amongst all snipers of Border. He accompanies the Miwa, Kazama and Tachikawa Units in their mission to capture Yūma's Black Trigger.

  • Anime Hair: Sports a pompadour.
  • The Ace: Of sniping, at least.
  • Book Dumb: His grades are even worse than Tachikawa's (though still better than Yoneya's); Zoe wonders if he even knows what "inverse proportions" means when it's brought up. With that said, if his analysis of Chika is any indication, he can read people fairly well.
  • Combat Aestheticist: Dislikes giving cover fire and cares for landing perfect shots to not sully his pride. Also shot a smiley face on the target instead of just shooting bullseyes during sniper training.
  • Combat Commentator: For the Mikumo vs. Ikoma vs. Ouji match.
  • Friendly Enemy: Even though it's obvious that Jin is there to stop them, Toma has no qualms about amiably chatting with him before Kazama reminds him to focus.
  • Friendly Sniper: Arrogant, yes, but also respectful towards skilled enemies and cheerful overall.
  • Improbable Aiming Skills: On practice, manages to land head shots from several hundred meters away of his moving targets.
  • Long-Range Fighter: Sniper.
  • The Mentor: Declares to be one for Yuzuru Ema, through the boy disagrees. On the other hand, he gives the mentor-less Izuho some pointers.
  • Punch-Clock Villain: During the Black Trigger Retrieval Arc.
  • "The Reason You Suck" Speech: Gives a short and not completely antagonistic one to Narasaka, explaining him how shooting even while knowing he will fail is what stops him from becoming a better sniper.
  • Slept Through the Apocalypse: Taking a nap when the second invasion begins, and only wakes up to snipe during crucial times.
  • Smug Super: Very confident on his abilities, but also very good at what he does.
  • Technician vs. Performer: He runs on intuition and snipes a smiley face instead of getting bulls-eyes, unlike the intellectual, serious, but inconspicuous Narasaka.

Risa Maki

A-Class, Operator
16 Years
Voiced by: ???

     Kazama Unit 

Kazama Unit
An A-Rank unit led by Sōya Kazama. It is ranked #3 amongst all A-Rank units in Border and is specialized in stealth and melee combat.

  • Close-Range Combatant: Their main forte.
  • Combat Parkour: While they don't use Grasshopper to maximize this, the entire squad boasts high mobility stats (Kazama in particular is among the top in Border) and their fighting style seems to involve constant movement.
  • Combat Pragmatist: Their specialty, essentially. Using Chameleon, they're very good at sneak attacks.
  • Dual Wielding: All members of the unit are dual-wielding two Scorpions on occasion.
  • Invisibility: All members of the unit use the Chameleon Optional Trigger, which allows temporary invisibility.
  • Morph Weapon: All members of the unit are using the Scorpion.
  • Punch-Clock Villain: During the Black Trigger Retrieval Arc.
  • Secret Keeper: Aware of Yuma's status as a Neighbour, due to their role in the Black Trigger Retrieval Arc. Kikuchihara (and likely the others, by association) also knows that Hyuse is a Neighbour, as Kikuchihara was called on to use his side effect on him.

Sōya Kazama

A-Class, Attacker
21 Years

The leader of the Kazama Unit, part of the Expedition Force and #2 ranked Attacker in all of Border.

  • Brutal Honesty: Very straightforward in his assessments, and effectively so. If Kazama gives you advice, it's in your best interest to follow it.
  • Can't Hold His Liquor: Second-worst tolerance in Border among those who drink, likely due to his small stature.
  • The Comically Serious: On Omakes.
  • Combat Commentator: During the Ninomiya vs. Kageura vs. Azuma vs. Mikumo fight.
  • Crippling Overspecialization: Subverted. He's known for his stealth, but as Karasuma notes, he's strong even without it. In fact, because it eats up trion quickly, it actually can't be used as his primary tactic in anything but a decisive stroke—his Curb-Stomp Battle against Osamu being an exception, due to how the simulation works.
  • Curb-Stomp Battle: Gives a long one to Osamu, due to wanting to test his skills.
  • Establishing Character Moment: His fight with Osamu and the aftermath. Aside from cementing him as a badass through the Curb-Stomp Battle, it has him give a list of the various ways in which he thinks Osamu is mediocre... but ends with him admitting that Osamu's Weak, but Skilled and that's not such a bad thing, showing that Kazama's strict but fair.
  • Fan of the Underdog: He's interested in Osamu's growth—not because he thinks Osamu has any notable potential, per se, but because he's curious to see how far Osamu can get in spite of his weakness.
  • Fragile Speedster: Very fast, invisible and good reflexes, but it doesn't take very much to take him down. Catching him, however, is another thing.
  • Graceful Loser: He doesn't at all mind his tie with Mikumo and considers it well-deserved (both on Mikumo's end for out-maneuvering him and on his end for his mistake in trying to counter rather than defend). It's even one of the few times he's seen smiling!
  • The Leader: Of his unit, and a good one at that. He's tied with Rindou for second-best at commanding in Border!
  • Not So Above It All: According to a Q&A in which someone specifically asked for Kazama's not-so-cool moments, examples included him fighting a postbox after Suwa got him drunk and him trying to ride Raijinmaru when he thought no one was looking (only to be caught on security camera).
  • Older Than They Look: He tends to be mistaken as around middle school age, if not younger. In the Q&A, it's revealed that it took him years to realize that he was being charged a child's fare on the city bus. note 
  • Old Soldier: One of Border's first members after the Old Border period.
  • Only Sane Man: Among him, Tachikawa, and Jin. He's rather unimpressed when, after Jin gives up Fujin, Jin and Tachikawa then immediately focus on how that means Jin can participate in ranked matches again.
  • Pet the Dog: He didn't entirely need it by that point, but despite his ruthlessly stoic attitude, it's mentioned that he was one of Osamu's visitors while Osamu was unconscious in the hospital.
  • Pint-Sized Powerhouse: Pretty small, even compared to younger agents, but still the second most powerful A-Rank Attacker.
    • Ironically, he's the oldest member of his team, being 5 years older than his team mates (except for Shiori, who is 4 years younger than him). The only one in the group shorter than him is Kaho.
  • Rank Up: Subverted of his own volition. He's the top candidate to inherit Fujin after Jin gives it up, which would allow him to become S-Rank, but for undisclosed reasons, he refuses.
  • Revenge Before Reason: Subverted on multiple counts.
    • He makes a point of stating that unlike Miwa, he doesn't fight Neighbors for revenge, despite also having lost a sibling to them.
    • During the second invasion, he dissuades Kikuchihara and Utagawa from enacting this on Enedra on his behalf, knowing that they're outmatched.
  • The Spock: Runs almost purely on logic and reasoning rather than sentimentality, contributing to what makes him such an effective leader.
  • The Stoic: Has a calm demeanor and rarely lets his emotions openly show.
  • The Strategist: One of Border's best tacticians. Even after bailing out in the large-scale invasion, he remains active, playing this role in the continued fight against Enedra.

Shirō Kikuchihara

A-Class, Attacker
16 Years
Voiced by: ???

A long-haired Attacker of the Kazama Unit.

  • All the Other Reindeer: To a degree, as all other agents were commenting on his back about his lame ability until Kazama took him in.
  • Brutal Honesty: Very blunt about his opinions.
  • Deadpan Snarker: Emphasis on the deadpan part.
  • Dissonant Serenity: Always seem with a stern look on his face, even when enraged.
  • Heart Is an Awesome Power: His "Side Effect" has been called useless by many when it was first discovered, because it just improves his hearing. That was until Kazama took him into his squad and realized that acoustic information could be easily shared amongst teammates and is an ideal counter to the Chameleon Trigger that was extremely popular at that time. So Shirō's ability became a crucial part of their rise to one of the most powerful A-Rank teams.
  • Hyper-Awareness: His Side Effect gives him this with his hearing, allowing for him and his unit to be impervious to any kind of surprise attacks.
  • Jerkass: Not very nice with people, excluding his unit (whom he's not exactly kind to either).
  • Jerkass Has a Point: When he criticizes Osamu, citing that his team is still too dependent on Yuma. He actually seems surprised that Osamu doesn't get defensive, instead taking his words seriously.
  • Off with His Head!: Courtesy of Jin.
  • Revenge Before Reason: He and Utagawa don't take it kindly when Enedra not only defeats Kazama but insults him for good measure. If Kazama hadn't talked them out of it, they'd have fought Enedra for it—to their detriment.
  • Sugar-and-Ice Personality: May have developed a fondness for Osamu, through he is still as rude towards him as ever. He's also a jerk to Usami, who used to be the Kazama Squad operator, but it's implied that it may or may not be to cover up his affection towards her.
  • Super Senses: His "Side Effect" gives him enhanced hearing that he can share with his squad.
  • Underestimating Badassery: Does this to Jin, and in exchange gets his head cut off.
  • Undying Loyalty: While Kikuchihara's as rude to Kazama as he is to anyone else, there are various signs that he's still fiercely loyal: he's practically appalled on Kazama's behalf that Kazama tied with Mikumo, he doesn't take it well when Enedra insults him, he warns Mikumo that he'd better not disappoint Kazama (who's to be the Combat Commentator for his next match)...
  • What Kind of Lame Power Is Heart, Anyway?: How he and many fellow agents felt about his Side Effect until Kazama stepped into his life.

Ryō Utagawa

A-Class, All-Rounder
16 Years
Voiced by: ???

An All-Rounder of the Kazama Unit.

  • The Generic Guy: The author admits that he doesn't stand out among the Kazama Squad (especially since unlike Kikuchihara, he didn't even get the distinction of having his head lopped off during his debut arc).
  • Master of All: Being an All-Rounder, he is this.
  • Nice Guy: Noted to have a gentle-mannered personality and often cleans up after Kikuchihara's Jerkass one.
  • Revenge Before Reason: As with Kikuchihara. Don't insult his captain.
  • Undying Loyalty: He's the sole non-Kido Faction antagonist in the Black Trigger Retrieval Arc—he's actually in Shinoda Faction. Combined with his later Revenge Before Reason moment, it's probably safe to say that personal loyalty to Kazama has to do with it.

Kaho Mikami

A-Class, Operator
16 Years
Voiced by: ???

The operator of the Kazama Unit.

  • Combat Commentator: For the Mikumo vs. Nasu vs. Kuruma match.
  • Even the Girls Want Her: Her profile notes that she's very popular among the other (all female) operators and that several of them are in love with her (which was probably an exaggeration as a joke, as the profiles tend to be, but...).
  • Hollywood Nerd: She's both pretty and smart.
  • Mission Control: As an Operator.
  • Obfuscating Stupidity: As a Combat Commentator, where she asks questions she knows the answer to for the sake of analysis. Jin knows she's doing this; Tachikawa doesn't and has to be told.
  • Team Mom: Her profile refers to her as one for her siblings, and to an extent, she seems to play this role for her squad as well.

     Kusakabe Unit 

Kusakabe Unit
An A-Rank unit led by Saki Kusakabe. It is ranked #4 amongst all A-Rank units in Border.

Saki Kusakabe

A-Class, Operator
?? Years
Voiced by: ???

The thus far unseen leader of the Kusakabe Unit.

Shun Midorikawa
A-Class, Attacker
14 Years
Voiced by: ???

A young prodigy of Border who held the record in the enlistment test (until Yūma broke it at least).

  • Ascended Extra: In the anime (Episode 5), his cameo is extended, and he directly talks to Jin, even being called by his name.
  • Attention Whore: Tries everything to get the attention of the older A-Rank agents and to build up a strong reputation as an A-Rank rookie.
  • Bitch in Sheep's Clothing: Likes to wear a mask of friendly curiosity to hide selfish motives.
  • Character Development: Learns a lesson in humility from being beaten by Yuma and already profits from it in his next fight.
  • Child Prodigy: Reached A-Rank at a very young age and even broke Kitora's record at the entrance-test.
  • Combat Commentator: During the Mikumo vs. Suwa vs. Arafune match.
  • Combat Parkour: Pretty much the expert of this in Border.
  • Curbstomp Battle: Gives one to Osamu to humiliate him, and in turn gets one from Yuma.
  • Early-Bird Cameo: Has a brief appearance in Chapter 10, greeting Jin in Border's base.
  • Following in Their Rescuer's Footsteps: He joined Border in honour of Jin, who saved him.
  • Fragile Speedster: Not much in the way of defences, but he's the most agile agent in Border, surpassing even Yuma in that regard.
  • Friendly Rivalry: With Yuma, to the point they event exchange combat advice.
  • Graceful Loser: For all of his cockiness, he takes it well when he realizes he's losing hard—Yuma even points out that he might do better if he uses another trigger, but Midorikawa would rather continue using Scorpion to better see their differences in skill, earning him Yuma's respect in the process. Afterwards, when Yuma (with some degree of insincerity) apologizes for humiliating him, Midorikawa easily admits he deserved it.
  • Keet: Though with a large streak of jerk.
  • The Knights Who Say "Squee!": Fans over Jin.
  • Morph Weapon: Scorpion.
  • The Nicknamer: Calling Yūma "Midget-senpai", Yoneya "Yoneyan", and Izumi "Izumin"; and obviously, calling Jin "Jin-san".
  • Pint-Sized Powerhouse: Just like Yuma, he is very proficient in fighting even while being quite small.
  • The Rival: After his humiliating defeat in the hands of Yūma, they became friendly rivals.
  • Sempai/Kohai: He is always trying to call the attention of Jin, who saved his life long ago (which was his reason to join Border).
  • Skilled, but Naïve: His Fatal Flaw in his fight against Yuma, as Yoneya notes. Midorikawa is a genuinely good fighter, but he's still a bit of a newbie and therefore fights with showing off in mind, rather than pragmatically ending the battle.
  • Spring Jump: His trigger Grasshopper, which creates multiple screens of light which function as springs.
  • Technician vs. Performer: The Performer to Yuma's Technician in their first fight, to Midorikawa's detriment. See Skilled, but Naïve.

Ryuji Saeki

A-Class, All-Rounder
?? Years
Voiced by: ???

Kazuma Satomi

A-Class, Gunner
?? Years
Voiced by: ???

Hayato Uno

A-Class, Sniper
?? Years
Voiced by: ???

     Arashiyama Unit 

Arashiyama Unit
An A-Rank unit led by Jun Arashiyama. It is ranked #5 amongst all A-Rank units in Border. The entire unit is called "The Face of Border" and is often used for public relations work.

  • The Ace: Ranked #5 in A-Rank, do public relations work, and (with the exception of Satori) maintain good grades in school—heck, Kitora, Arashiyama, and Ayatsuji have some of the best!
  • Badass Crew: Every team is this, but it's their squad's outright theme, as their emblem shows: five stars coming together to make a greater star.
  • Honorary True Companion: To Tamakoma. They come to their aid during the Black Trigger Retrieval Arc and remain one of Tamakoma-2's biggest supporters, so to speak.
  • Secret Keeper: Due to their close association with Tamakoma, they tend to be privy to certain info that others aren't: Yuma's a Neighbour, Mikumo's new techniques, Hyuse being a Neighbour and the newest member of the team, etc.
  • Shipper on Deck: In the anime, Arashiyama and Tokieda tease Kitora about having a possible crush on Osamu. Ayatsuji is the one character to tease her in the manga too.
  • Underestimating Badassery: Certain wannabe experts (like the 3 idiot rookies) think of the unit as a mere mascot team without any actual skill. Of course they are dead-wrong.

Jun Arashiyama
19 Years
A-Class, All-Rounder
Voiced by: Nobuhiko Okamoto

The leader of the Arashiyama Unit and an All-Rounder.

  • Academic Athlete: Extremely good grades and athletic outside of a trion body as well.
  • Always Someone Better: He doesn't realize it, but Kakizaki sees him as this.
  • Annoying Younger Siblings: Inverted. It's his own little brother and sister the ones who are embarrassed with him.
  • Bishōnen: Described as a handsome guy.
  • Big Brother Instinct: One of the main reasons why he supports Osamu in the beginning is out of gratitude for the boy saving his brother and sister.
  • Chick Magnet: He's noted to be popular with girls.
  • The Face: His entire unit is called "The Face of Border" because of their spotless reputation and idol-like status, but the trope fits him best.
  • Heroic Build: Is noticeable fit on the anime filler.
  • The Leader: Of the Arashiyama squad.
  • Master of All: As an All-Rounder.
  • The Mentor: Karasuma enlists him to help teach Osamu, due to him being a firefight specialist.
  • Morph Weapon: Scorpion.
  • Nice Guy: Always polite and positive.
  • Old Soldier: One of Border's first members after the Old Border period.
  • Shirtless Scene: In episode 56.
  • Similar Squad: His name and appearance are remarkably similar to Jin (they're even the same age). Lampshaded in a sketch by Ashihara, where Tokieda in the background wonders if they're twins.
  • Teleporters and Transporters: Very fond of using Teleportation-Triggers to outmaneuver his opponents.

Ai Kitora
A-Class, All-Rounder
15 Years
Voiced by: Kana Hanazawa

An All-Rounder of the Arashiyama Unit.

She is considered to be one of the biggest prodigies Border ever had, reaching A-Rank at a very young level.

  • Academic Athlete: Like Arashiyama (Kitora has somewhat better grades, Arashiyama is somewhat more athletic).
  • The Ace: Explicitly so of Arashiyama Squad.
  • Action Girl: One of the few female A-Rank agents and a match for almost all of her male colleagues.
  • Adorkable: She has her moments, such as being hilariously crushed when Futaba treats her coldly.
  • An Arm and a Leg: Not unusual for this series, though Kitora seems to be especially prone to losing legs in combat, sometimes even cutting it off herself.
  • Armed Legs: Had to use her Scorpion as a replacement leg in one battle and has seemingly taken a liking to it.
  • Awesome by Analysis: Although she's famous mainly for being highly skilled, like Osamu, she's capable of overcoming her weakness with strategy.
  • Big Ego, Hidden Depths: She's arrogant, yes, but as hard on herself as she is on others. When Yuma tries to compliment her for taking down the Ilgar (that he secretly defeated), he's surprised when she refuses to take it—she's not so conceited that she'd take credit for something she didn't do.
  • Boisterous Bruiser: She seems akin to this.
  • Brutal Honesty: She'll say it precisely as it is whenever Osamu is concerned.
  • Child Prodigy: Reached A-Rank at a really young age.
  • Compassionate Critic: She's quite harsh on Osamu while he's seeking improvement, if not more so than anyone else, but is so out of realism rather than to be a jerk. Aside from having a point, she also mentions that to someone like him, constant kindness will only become a burden.
  • Crush Blush: When talking to Karasuma.
  • Defensive Feint Trap: Pulls this against Yoneya.
  • Defrosting Ice Queen: Played with. She's no longer hostile towards Osamu as she was in the beginning, but she's never dere to him either (that side, apparently, is reserved solely for Karasuma).
  • Double Weapon: Shapes the Scorpion as one.
  • The Face: Same as Arashiyama, and easily recognized by the population as the face of Border.
  • Go-Getter Girl: A-Rank, PR Squad member, excellent grades, athletic outside of a trion body, a student of the posh girls' school, etc.—Kitora seems to be a perfectionist in all areas of life, and is very proud of her accomplishments.
  • Grappling-Hook Pistol: A secondary function of her customized pistol: a trigger called "Spider".
  • Green-Eyed Monster: Envies Osamu because Karasuma is teaching him.
  • Inferiority Superiority Complex: To a degree, her constant boasting and subsequent criticism of others is because she needs to constantly assure herself that she deserves her rank.
  • Jerkass Has a Point: Though she's being somewhat petty when she criticizes Osamu for using his trigger as a trainee (even if he saved lives in the process), she's not wrong when she points out that the ban exists to prevent C-Ranks from getting themselves killed playing hero. Osamu, knowing that did almost happen, can't refute her.
  • Jerk with a Heart of Gold: Although she at first seems to be an arrogant and cold girl, she turns out to be a very humble and kind girl.
  • The Knights Who Say "Squee!": Fans -or fawns- over Kyosuke Karasuma.
  • Last-Name Basis: One of the few characters who's almost never referred to by her given name, despite being on the younger side.
  • Master of All: As an All-Rounder.
  • The Mentor: She resists at first, but she teaches Osamu the Spider trigger, and ends up as the most useful of all of Osamu's side mentors.
  • Morph Weapon: Scorpion.
  • Not So Different: As Osamu, she has low Trion levels and must seek other ways to fight that aren't raw power. Unlike him, however, she is pretty talented at it.
  • Pet the Dog: The first sign that she isn't such a jerk is after the Ilgar incident, when Osamu is facing the Border management to decide his punishment: for all of her stubbornness and initial harping on Osamu, she's revealed to have voiced her support for him (helping to lessen his consequences for breaking the rules).
  • Sempai/Kohai: Where she is the Kohai and Karasuma the Sempai.
  • Sore Loser: If you're around her age, she will want to one-up you/seethe if you do better than her. Osamu doesn't quite realize it, but he does note that she was oddly gleeful when she learns that it was Yuma who defeated the Neighbor at the start of the series, not him...
  • Sugar-and-Ice Personality: She seems self-obsessed, gruff and arrogant at first glance, but has a huge dedication to her duty of protection people and shows quite some interest towards Osamu's growth.
  • Sword and Gun: Often uses a pistol-shaped Trigger alongside her Scorpion.
  • Unknown Rival: Osamu's completely unaware that Kitora is pretty much competing with him in her mind.
  • Waif-Fu: Justified though, as she is using a Trion-Body.
  • What the Hell, Hero?: To Osamu, calling him out on his incompetence and on demanding help without saying please. Osamu, being Osamu, resorts to bowing his head and doing just that.
  • Weak, but Skilled: Her Trion Levels aren't that impressing at all, but she made up for that with tactics and determination.

Mitsuru Tokieda
A-Class, All-Rounder
16 Years
Voiced by: Yuuta Kasuya

The third member of the Arashiyama Unit. A rather quiet and reserved guy with a bowl cut.

  • Affectionate Nickname: Tokki, as he's dubbed by others in appreciation of him being The Reliable One.
  • Combat Commentator: During the Mikumo vs. Katori vs. Kakizaki fight.
  • Dull Surprise: As his sleepy-eyed look doesn't change, his surprised look is hilariously just him making an O shape with his mouth but his expression remaining unchanged otherwise.
  • Kindhearted Cat Lover: According to the official World Trigger twitter, he owns two cats. A dark tiger cat named Arthur, and a white cat with black spots, Tomio.
  • Master of All: As an All-Rounder.
  • The Mentor: To Osamu, as with Arashiyama, though he's also the one who ultimately defers Osamu to Kitora, realizing she can teach him better than he and Arashiyama can.
  • Morph Weapon: Scorpion.
  • Nerves of Steel: Even after being sniped in the head by Toma, he immediately pulls Kitora out of a direct line of fire before bailing out. Lampshaded by Toma, who complains good-naturedly that come on, Tokki, he just shot you in the head.
  • Nice Guy: Despite being usually quiet, he's shown to be a really nice guy when he does talk.
  • Not So Above It All: The anime shows a much more playful side of him, such as teasing Kitora on how she treats Osamu, and, in a flashback, being amused by the idea of Yuiga joining Arashiyama Unit (though it's implied that the events in this flashback were all made up by Karasuma). The manga does show hints of this side as well, during his stint as a Combat Commentator.
  • The Reliable One: Described as this in extra material. He's not a point-getter, but rather, he's regarded as one of the best supporters in Border.
  • The Stoic: Remains mostly quiet unless there is anything important to say. In which case he will cut straight to the point.
  • Teleporters and Transporters: Like Arashiyama, he has the Teleporter (prototype) trigger.

Ken Satori
A-Class, Sniper
16 Years
Voiced by: ???

The good-natured sniper of the Arashiyama Unit.

  • Bishie Sparkle: Fond of these. Notably, in the character graphs, he's the only character who's drawn with this next to him.
  • Bunny-Ears Lawyer: Very funny and sort of a ditz, but he is one of Border's most talented agents.
  • Catchphrase: "Did you see my twin rifle sniping?", which he says after every fight in which he is involved.
  • Crouching Moron, Hidden Badass: He is quite goofy outside of combat, but one of the best snipers in all of Border and able to land two critical shots at once.
  • Dual Wielding: Of sniper rifles, which seems to be his trademark gimmick.
  • Friendly Sniper: Good-natured and cheerful, delivering each shot with a smile.
  • Guns Akimbo: With sniper rifles no less!
  • Has a Type: Inverted. He's stated to love all girls equally, and in the Preferences graph, he's smack-dab in the middle, meaning that rather than have a type, he has no preference between appearance vs. personality or what type of personality.
  • Heroic Build: He fights with a sniper rifle in each hand. Trion body or not, this shouldn't come as a surprise.
  • Long-Range Fighter: Sniper.
  • Plucky Comic Relief: To the point Azuma put him in charge of teaching the young snipers to release their tension.
  • Running Gag: Him being forgotten/absent compared to the rest of his squad.
  • Shirtless Scene: In episode 56.

Haruka Ayatsuji

A-Class, Operator
17 Years
Voiced by: Shiori Mikami

     Kako Unit 

Kako Unit
An A-Rank unit led by Nozomi Kako. It is ranked #6 amongst all A-Rank units in Border.

Nozomi Kako

A-Class, Shooter
20 Years
Voiced by: ???

The leader of the Kako Unit.

  • Action Girl: One of the strongest women in Border.
  • Beauty Mark: Under the left side of her lips.
  • Cloud Cuckoolander: To a degree. She goes into strange antics like trying to add Yuma to her team just because he has a "K" on his name.
  • Combat Commentator: For the Ninomiya vs. Kageura vs. Azuma vs. Mikumo fight.
  • The Ghost: One of the eight candidates for the Fūjin mentioned by Jin in Chapter 43.
  • Headbutting Heroes: Has something going on with Ninomiya, likely dating back to when they were agents under Azuma.
  • The Leader: Of her unit.
  • Lethal Chef: According to extra materials, Kuroe is the only one that can endure her cooking. However, it's more like Lethal Chef Roulette—most of the time, her fried rice is fantastic, but the times it's not? It's deadly.
  • Pretty Butterflies: Her motif, and her Units emblem.
  • Statuesque Stunner: Like Tsukimi, she is considerably taller than the rest of the female cast.
  • Tsurime Eyes: A shared trait of both her and Futaba.

Futaba Kuroe
A-Class, Attacker
13 Years
Voiced by: ???

Another child prodigy. Not much is known about her.

Mai Kitagawa

A-Class, Trapper
?? Years
Voiced by: ???

An Kobayakawa

A-Class, Operator
?? Years
Voiced by: ???


     Miwa Unit 

Miwa Unit
An A-Rank unit led by Shūji Miwa. It is ranked #7 amongst all A-Rank units in Border.

  • Animal Motifs: Snakes (for Miwa and Yoneya, at least), as seen in their emblem. Likely a reference to the way they fight: keeping their enemy trapped in one place through teamwork, like a snake wrapping around its prey.
  • Anti-Villain: They're the first real antagonists against Osamu and Yuma, but at the end of the day, they mean well and, with the exception of Miwa, don't antagonize the protagonists again.
  • Freudian Excuse: With the exception of Yoneya, they all have some reason to dislike Neighbors.
  • Punch-Clock Villain: Aside from Miwa, they're this in the beginning of the series. Yoneya in particular is simply fighting because it's his job to.
  • Secret Keeper: For Yuma's status as a Neighbour.

Shūji Miwa
A-Class, All-Rounder
17 Years
Voiced by: Masakazu Morita

The leader of the Miwa Unit and an All-Rounder.

He harbors a strong hatred for neighbors because his older sister was killed by them. He is Jin's favorite candidate for a new user of his former black trigger, Fujin.

  • Anti-Hero: He is willing to fight even supposed allies to get his revenge on all Neighbors alike. This seems to start gradually changing as everyone around him start accepting Yūma as an ally and member of Border and he is forced to, too.
  • Abnormal Ammo: Has a trigger that turns his bullets into weights that slow down the enemy.
  • Bash Brothers: His squad's fighting style—he and Yoneya work in perfect tandem to corner the enemy (while the snipers pick them off if they escape Miwa and Yoneya's cage).
  • Berserk Button: Neighbors/anything that relates to his Cynicism Catalyst, really. In a series about Neighbors, you'd be forgiven for feeling like he has a Hair-Trigger Temper, though he actually seems to be The Stoic otherwise.
  • Big Damn Heroes: Saves Osamu from Hairein in the climax of the Second Invasion arc.
  • Bishie Sparkle: One omake jokes about how he's the only A-Class who can't manifest one. Even Kazama can.
  • Bishōnen: Fairly good-looking; the author noted that female readership went up after he was introduced.
  • The Comically Serious: In omakes.
  • Cynicism Catalyst: His older sister was killed by neighbors, which fuels his desire to kill them.
  • Exhausted Eyebags: After the Black Trigger retrieval arc, mostly due to Yuma being admitted into Border.
  • Fantastic Racism: Has an immense hatred against neighbours.
  • I Was Just Passing Through: Saves Osamu as Jin asked him to do, but in his words only because he wants to defeat Hairein.
  • Jerk with a Heart of Gold: Very rude overall, and outright violent towards Neighbors. That said, he can be civil if he doesn't have an issue with you and has enough courtesy ingrained in him that he'll still display it to those he hates (e.g. picking up Yuma's fallen change for him).
  • Katanas Are Just Better: Uses the Kogetsu.
  • The Leader: Of the Miwa squad.
  • Master of All: Being an All-Rounder.
  • My Master, Right or Wrong: A heroic version. He despises Neighbors, but if management says Yuma is an ally? Yuma is an ally, even if the contradiction in Miwa's mind utterly stresses him out.
  • Odd Friendship: He's close enough with Yoneya that they're on a mutual First-Name Basis. They couldn't possibly be more different in personality.
  • Old Soldier: One of Border's first members after the Old Border period (and a notably much younger age than the other members at the time).
  • Perpetual Frowner: Seems unable to smile.
  • Pet the Dog: He seems to have loosened up after the second invasion; people take him telling Jin not to do anything reckless regarding his mission as a sign of their relationship improving.
  • Rank Up: Subverted in the same way as Kazama. Though he receives Fujin after Kazama declined it, he returns it after the invasion, citing tactical reasons.
  • Red Eyes, Take Warning: His are a light shade of red, and while not evil he is definitively not a very pleasant individual.
  • Revenge Before Reason: His hatred for Neighbors really clouds his reasoning at times.
  • Scarf Of Asskicking: Perhaps subverted, as he wears it while he isn't on his fighting form. Played straight during the second invasion, though, as he reverts to his normal clothing when wielding Fuujin.
  • Sword and Gun: Handgun-shaped Gunner-Trigger and a Kogetsu.
  • Trick Bullet: Uses special black Trion projectiles that penetrate shields and slow their victim down with huge weight instead of causing damage.
  • You Are Already Dead: To Koskero, who chides him for talking during a battle. Miwa responds by telling him that the battle was already over as soon as Koskero came outside, just before Jin slices him with Fujin.
  • You Can't Fight Fate: When Jin tells him that he'll end up saving Osamu during the invasion, Miwa's reply is basically, "Hell no." When he hears the orders to assist Osamu in escorting the C-Rank agents? So far as one can tell, he ignores it. Unsurprisingly, none of this changes the fact that yup, he's the one who ultimately saves Osamu, grumbling about Jin all the while.

Yōsuke Yoneya
A-Class, Attacker
17 Years
Voiced by: Daisuke Kishio

An Attacker of the Miwa Unit.

He is a rather good-natured member of Border, especially compared to the rest of his squad. He has no special resentment against Yūma or Neighbors in general and just likes to do his job and have a good fight.

  • Badasses Wear Bandanas: Wears one both in his Trion form and in his casual attire.
  • Bash Brothers: With Miwa, as is their squad's main tactic. The only fight they're not together in is the second invasion, as Yoneya was off-duty when it occurred.
  • Birds of a Feather: Gets along great with Izumi (and, to a lesser extent, Midorikawa), likely due to their similar attitudes: rowdy, ruthless enough to start off as antagonists, but ultimately decent 17-year-old boys.
  • Blade on a Stick: His main weapon is a modified Kogetsu that takes the form of a spear instead of a Katana. According to Border Briefing File, he asked for this modification as he has low trion and the normal Kogetsu uses too much trion.
  • Blood Knight: A friendly variant, but he is also always looking for a fight.
  • Boisterous Bruiser: Always searches for a good fight against strong opponents.
  • Book Dumb: Has bad grades (only Yuma, who's never attended school in his life, and Yotaro, a 5-year-old, are worse) and doesn't seem very conventionally smart, but can be very shrewd and insightful at least what combat is concerned.
  • Catchphrase: "Or so you think." which he says at least once in almost every fight.
  • Combat Pragmatist: His Catchphrase is what it is for a reason: his fighting style tends to involve catching his opponents off-guard, starting with his Morph Weapon.
  • Dark Is Not Evil: At a glance, he's probably the most evil-looking of his squad (the Dull Eyes of Unhappiness don't help). He's actually the friendliest of them.
  • Dull Eyes of Unhappiness: Even mentioned by the author, though he isn't very unhappy himself.
  • Graceful Loser: After he and Miwa lose to Yuma. While Miwa bails out in a fit of rage, Yoneya accepts his loss and even says he can't complain if Yuma wants to kill him, since they tried to do the same to him.
  • In-Universe Nickname: "Spear Geek", courtesy of Izumi.
  • Morph Weapon: The tip of his spear can morph similar to a Scorpion with the use of an optional trigger called Genyō and the shaft's length can be changed at will.
  • Nice Guy: Boisterousness aside, he's always laidback and friendly, even towards enemies.
  • The Nicknamer: Calls Izumi "Bullet Fool".
  • Odd Friendship: With Miwa.
  • The Power of Friendship: Or rather the power of teamwork, as he says when he defeats Lamvanein thanks to a combined shield he and other Border agents do that allows him to pierce him with his spear.
  • Shout-Out: His badges feature Rilienthal Hino, Gomuzō and Super Alien Cat, from the creator's previous work Super Dog Rilienthal.
  • Taking You with Me: After Kitora lands a lethal hit on him, he responds by grabbing her and jumping out of the building to allow Izumi a good shot at her.
  • Vitriolic Best Buds: Seems to be this to Izumi of the Tachikawa Unit, who he "affectionately" calls "Bullet Fool".
  • Weak, but Skilled: Like with Kitora, his trion levels are on the lower side, but he makes up for it with clever fighting.
  • Worthy Opponent: Lamvanein acknowledges him as one.

Tōru Narasaka

A-Class, Sniper
17 Years
Voiced by: Yusei Oda

A Sniper of the Miwa Unit. Ranked second place among all snipers of Border.

Harbors some resentment against Neighbors because they destroyed his house.

  • The Ace: Of sniping, alongside Toma. In joint training, since Touma prefers to do his own thing, Narasaka is always No. 1.
  • Badass Boast: "A school of fish doesn't count as a shield in my book."
  • Bishōnen: Fairly good-looking and, in-universe, one of the most popular people even if he himself couldn't care less.
  • Cold Sniper: Of the stoic variety.
  • Long-Range Fighter: Sniper.
  • The Mentor: For Akane Hiura.
  • Sempai/Kohai: Has this role along with Kodera. He's also this to Akane.
  • The Stoic: Not a very emotional person.
  • Technician vs. Performer: Not flashy, but snipes perfect bulls-eyes without fail during practice and runs on tactics in comparison to Touma, who snipes a smiley face and runs on intuition. That said, while annoyed when Touma doesn't take his job seriously, he does respect Touma (and his ability to snipe smiley faces).

Shōhei Kodera
A-Class, Sniper
16 Years
Voiced by: ???

A Sniper of the Miwa Unit.

Harbors some resentment against Neighbors because they destroyed his house.

  • Cloud Cuckoolander: Somehow believed spying on Tamakoma involved making extensive notes on what did they ate every day. It was just Filler, however.
  • Crush Blush: When talking to Usami.
  • Dude, Where's My Respect?: Due to his attitude even lower agents scorn him, since he doesn't act like they think an A-Class Agent should.
  • Long-Range Fighter: Sniper.
  • Megane: Noticeably wear glasses like Osamu. It was even jokingly stated that their characters overlap because of this.
  • Sempai/Kohai: He is always complimenting Tōru, who he affectionately calls "Narasaka-Senpai", and his skills.
  • Smart People Wear Glasses: He's a bespectacled Sniper.

Ren Tsukimi
A-Class, Operator
19 Years
Voiced by: Chihiro Ikki

The Operator of Miwa Unit. She and Kei are childhood friends.

     Katagiri Unit
An A-Rank Unit led by Takaaki Katagiri.

Takaaki Katagiri
A-Class, Gunner
?? Years
Voiced by: ???

  • Ascended Extra: In the manga, the guy in glasses who greets Jin is unnamed, and he is mentioned by name by Jin as one of the candidates for the ownership of Fūjin. In the anime, they're both revealed to be the same person.
  • Early-Bird Cameo: In the anime.
  • The Leader: Of his unit.
  • Megane: Wears glasses simmilar to the ones Osamu has.
  • Shout-Out: He's based on a character from one of Ashihara's previous works, a Oneshot called Room 303.

Yukimaru Ichijo

A-Class, Attacker
?? Years
Voiced by: ???

Toichiro Momozono

A-Class, Sniper
?? Years
Voiced by: ???

Asumi Amakura

A-Class, Spotter
?? Years
Voiced by: ???

Karin Yuitsuka

A-Class, Operator
?? Years
Voiced by: ???


Example of: