Age: 15 Height: 141cm Position: Attacker B-Rank #2 Mikumo Unit Side Effect: Lie Detection Uses Scorpion and Grasshopper. A realist with rational thinking shaped by survival experience since childhood and his father's teachings. He is merciless toward enemies but shows full respect to benefactors and those he considers superiors, so he is not lacking in cooperativeness. He possesses extraordinary combat abilities based on practical experience cultivated in mercenary life and rich adaptability.

Age: 14 Position: Attacker Height: 157cm A-Rank #4 Kusakabe Unit One of the "A-Rank Three Idiots," he has a friendly, puppy-like personality. He became a passionate fan of Jin after his life was saved from a Trion Soldier, and joined Border about a year ago. His main trigger is Scorpion, and he excels at tricky movements using Grasshopper. His signature move is "Pinball," where he repeatedly bounces around his opponent.

Age: 21 Birthday: September 24 (Mikazuki) Height: 158cm Blood Type: A Likes: Katsu curry, milk, self-discipline Family: Father, mother, older brother Position: Attacker Rank: Individual Overall #3, Attacker #2 Leader and Attacker of A-Rank #3 Kazama Unit, Border HQ. Characterized by black hair, sharp red eyes, and a small stature that sometimes gets him mistaken for a middle schooler. Though he looks young due to his height, at 21, he is among the older members of Border. He personally doesn't mind his short height. A passionate man prepared to fight with the cards he's been dealt.

Age: 13 Position: Attacker Height: 142cm A-Rank #6 Kako Unit Has a cool personality for her age. Unlike Midorikawa, who taught Yuma how to use Grasshopper, she seems to dislike showing her hand to rivals. A super rookie who clocked 11 seconds in the Neighbor combat training held immediately after joining. A Kogetsu user; perhaps due to her height, she carries her sword on her back like a ninja rather than at her waist. She demonstrated high-speed slashes using the optional trigger "Idaten."

Gender: Male Position: Attacker Age: 18 (High school senior) Birthday: June 4 Height: 177cm Blood Type: B Zodiac: Usagi Likes: Sushi, yakitori, manga, idling in the strategy room Family: Father, mother, older brother Characterized by messy hair, jagged teeth, and sharp, beast-like eyes. Leader of B-Rank #2 Kageura Unit, Border HQ. Side Effect: Emotion Perception. He can feel the intent and emotions of others directed at him on his skin. It feels like a "prickling sensation on the skin." The prickling varies by emotion, such as dependency or fear, and negative emotions feel more unpleasant. In the past, he assaulted Eizo Netsu, resulting in his unit being demoted to B-Rank and a penalty of 8,000 personal points. His family runs an okonomiyaki restaurant where Arafune is a regular. It is a popular spot where many other Border members gather.