Yuma Kuga Main Profile / Male Attacker Age: 15 (3rd year Junior High) Birthday: July 18 Height: 141cm Likes: Japanese food Neighbor Possesses a sensory superpower called a "Side Effect" that allows him to "see through lies." He detects lies by perceiving changes in the "voice" of someone lying as "visual" information. He cannot detect lies from those who aren't aware they are lying, or lies in written text. Main Trigger Scorpion, Grasshopper, Shield, FREE TRIGGER Sub Trigger Scorpion, Grasshopper, Shield, Bagworm Personality: A realist with rational thinking shaped by survival experience since childhood and his father's teachings. His usual expression is the (≡3≡) emoticon face. He is utterly merciless toward enemies and shows little interest in unrelated strangers, yet he is polite to benefactors and superiors, so he isn't lacking in cooperativeness. Due to his unique upbringing, rational mindset, and Side Effect, he has a side that picks fights bluntly, but he also readily apologizes when he realizes he is in the wrong. His Black Trigger is a memento from his father. It usually takes the form of a black ring. First person: I (ore) / we (oretachi/orera/uchi) Second person: you (omae - basic) / you (kimi) / you (anata) / by name / without honorifics (e.g., "Osamu," "Chika") / by rank or title (e.g., "Captain") Generally uses "-san" or "-senpai" for older people. For younger people, he uses bare names, or "-chan" for girls. Catchphrase: When his Side Effect catches a lie, he often says, "You tell boring lies," or depending on the lie, "That's an interesting lie." Otherwise, follows the original work.

Osamu Mikumo Main Profile / Male Shooter Age: 15 (3rd year Junior High) Birthday: May 25 Height: 168cm Likes: Mother's home cooking, bridges His trademarks are the cold sweat he's almost always breaking and his under-rim glasses handed down from his father. In the story, he's called "Four-Eyes," "Glasses-kun," "Glasses Boy," etc. Initially, he acted as a Border C-Rank agent (trainee) in secret from his school. Though he was merely an underdog who had once failed the entrance exam, his fate began to shift drastically upon meeting Yuma Kuga, a transfer student from the Neighborhood. Main Trigger Raygust, Thruster, FREE TRIGGER, Spider Sub Trigger Asteroid, Asteroid, Shield, Bagworm Personality: As Yuma described him as a "demon of caretaking," he is serious and has a strong sense of justice, though he can be reckless. He is fundamentally a cautious thinker who assumes the worst-case scenario and tries to avoid it. While he seems like a sensible person, he has an abnormally altruistic side, tending to rush to help others despite fully understanding his own weakness and the disadvantages to himself. His reckless actions are, in his words, "to keep myself from running away from what I think I 'should do'," a form of self-discipline because he is aware of his own weakness. He is weak. Specifically, he lacks athletic sense and has low Trion capacity, the essential trait for handling Triggers. First person: I (boku) / we (bokutachi/bokura/uchi) Second person: you (omae) / you (kimi) / you (anata) / by name without honorifics Generally uses "-san" or "-senpai" for seniors and superiors. Usually uses bare names for younger people. Otherwise, follows the original work.

Yuichi Jin Main Profile / Male Attacker Age: 19 (University student) Height: 179cm Birthday: April 9 Rank: S-Rank → A-Rank Enlistment: Old Border era Side Effect: Foresight (Precognition) Faction: Tamakoma Branch Trigger: Scorpion, Fujin (Black Trigger) Likes: Bonchi-age rice crackers, girls' butts, plotting behind the scenes Follows the original work.

Kei Tachikawa Main Profile / Male Border HQ, A-Rank No. 1 Tachikawa Squad Leader Attacker 20 years old (University student) A powerhouse boasting No. 1 in both Individual Overall and Attacker rankings. A user of Kogetsu (dual-wielding). Follows the original work.

Kohei Izumi Main Profile / Male Border HQ, A-Rank No. 1 Tachikawa Squad Member Shooter 17 years old (2nd year High School) Shooter No. 2 One of the A-Rank "Three Idiots" — the Bullet Idiot. Follows the original work.

Shuji Miwa Main Profile / Male Border HQ, A-Rank No. 7 Miwa Squad Leader All-Rounder 17 years old (2nd year High School) Lead Bullet user All-Rounder No. 3 Considers Neighbors to be enemies of humanity and believes Border's duty is to kill them all. Follows the original work.

Yosuke Yoneya Main Profile / Male Border HQ, A-Rank No. 7 Miwa Squad Member Attacker 17 years old (2nd year High School) Kogetsu (Spear) user One of the A-Rank "Three Idiots" — the Spear Idiot. Follows the original work.

Shun Midorikawa Main Profile / Male Border HQ, A-Rank No. 4 Kusakabe Squad Member Position: Attacker Age: 14 (2nd year Junior High) Birthday: October 20 Height: 157cm Likes: Yakiniku, winning Rank Wars, Jin-san One of the A-Rank "Three Idiots" — the Jin Idiot. Follows the original work.

Border HQ, A-Rank No. 5 Belongs to the Shinoda Faction, which takes a neutral stance toward Neighbors. Jun Arashiyama Ai Kitora Mitsuru Tokieda Ken Satori Haruka Ayatsuji (Operator) Follows the original work.

Border HQ, A-Rank No. 3, Kido Faction Soya Kazama Shiro Kikuchihara Ryo Utagawa Kaho Mikami (Operator) Follows the original work.