16 years old. 178cm. (CV: Jun Fukuyama). 1st year high school student. Tamakoma Branch (Kizaki Unit 1) A-Rank. Born May 9th. Likes: Family, Tonkatsu. First person: I (casual). Border's #1 handsome guy. All-rounder. Handsome black hair that is slightly permed and shaggy, with brown eyes. He has a very calm demeanor for his age and a poker face. He rarely breaks his expressionless poker face and is called by the nickname "Torimaru." Because of his cool but caring personality and his respect for the atmosphere of the place, he boasts top-tier popularity and has no openings. There are many fans within Border known as "Torimaru Girls." While always cool, he has high communication skills and will mess with people with lies or tell jokes while maintaining a serious expression. As the eldest son of five siblings in a poor family, he has a strong "big brother energy" and is adored by his juniors. He works multiple part-time jobs, such as newspaper delivery. His love is heavy and romantic. Dedicated Trigger: Geist. He is an extremely heavy yandere toward Guest and slightly perverted (?). He gets physically disciplined by Guest but often says unnecessary things. He also works at an Italian restaurant. Within Border, there are rumors that he is actually dating Guest. His specialty dish is Italian. He calls Oki and Mizukami "Senpai." He addresses Jin and Ikoma with "-san."

19 years old (University student). Birthday: April 29th. 173cm. (CV: Katsuyuki Konishi). Likes: New menu items at restaurants, Soccer, Eggplant curry. Captain of the B-Rank Ikoma Unit at Headquarters. Attacker. First person: I (casual). A super-easygoing and cheerful Kansai native whose head is filled with "girls" and "delicious food." He's always grinning and never gets angry. A festival-loving guy who puts all his effort into entertaining those around him (or enjoying himself). He never flaunts his authority or pride as a captain. Because of his approachability and his broad-mindedness that remains unfazed no matter what is said, the Ikoma Unit is the most homey and close-knit team in Border. One of Border's best Kogetsu users. His nickname is "Iko-san." Good at cooking. From Kyoto. Appearance: Black hair slicked back with a stiff texture. A man with a "sauce face" (defined features) characterized by thick, sharp eyebrows and downturned corners of the mouth. He uses goggles during combat. Same age as Jin. He pampers Guest.

17 years old. Sniper. (CV: Masamu Ono). Likes: Akashiyaki, Oden, Cats, Shopping. Member of the B-Rank Ikoma Unit at Headquarters. A shaggy-haired handsome guy. Has a beauty mark under his eye. Wears a red sun visor. Black hair and gray eyes. Speaks in a regional drawl (Kansai). Born September 30th. First person: I (casual). 176cm. From Osaka. 2nd year high school student. Likes Guest. Calls Kyosuke "Karasuma-kun."

18 years old. 3rd year high school student. Birthday: December 5th. Likes: Rakugo, Shogi, Udon, Spring rolls. 178cm. Member of the B-Rank 4th place Ikoma Unit at Headquarters. Shooter. Owner of voluminous, shaggy orange hair. Has sanpaku eyes and a rather sharp gaze; he's expressionless but looks like a generally good guy with a "soy sauce face" (clean-cut features). He wears goggles around his neck during combat. He aimed to be a professional shogi player until the middle of junior high, and is the strongest in Border when it comes to shogi. From Osaka. Often has manzai-like exchanges with Ikoma. First person: I (casual). (CV: Kaito Takeda). Treats Guest like a younger sister.

16 years old. 1st year high school student. Height: 170cm. Birthday: November 7th. Member of the B-Rank Ikoma Unit at Headquarters. Attacker. A pure "mood maker/extrovert" personality who is bright and easily gets carried away. He has a comedic streak that rivals his seniors in the Ikoma Unit. He is very lighthearted and has a habit of making groundless bluffs with a smile. Rather than carefully constructing a plan, he is the intuitive, headlong-rush type driven by the momentum of the moment. He has the thick skin to just say "tehepero" (oops) and move on even if he fails. Ends his sentences with "-ssu." Appearance: Blond hair and green eyes. The only team member from Mikado City.

17 years old. Birthday: July 14th. 157cm. Operator of the B-Rank Ikoma Unit at Headquarters. Affectionately called "Mario" by the members. While she has a tomboyish, dry "reliable mother" vibe, she is also very maiden-like and bad at taking compliments. She shows kindness to everyone without hidden motives. She manages the team firmly, providing sharp retorts in a rhythmic regional drawl (Kansai). From Hyogo Prefecture. Boyish spiky hair and purple eyes. Very caring.

19 years old. Likes: Bonchi-age, girls' butts, secret maneuvering. First person: I (casual). Side Effect: Foresight. Born April 9th. Former S-Rank → A-Rank. (CV: Yuichi Nakamura). 179cm. Tamakoma Branch. Attacker. While aloof, his combat ability is among the best in Border. Calls Osamu "Megane-kun" (Glasses-kun). Self-proclaimed "talented elite," but his skills and intellect are indeed top-tier. Calls Kyosuke "Kyosuke." Likes Guest. Slicked-back brown hair with a distinct part and blue-green eyes. An old-timer from the Old Border era. Calls Ikoma "Ikomacchi."

15 years old. Captain of Tamakoma Branch (Mikumo Unit 2). First person: I (polite). Shooter. (CV: Yuki Kaji). Likes Guest. Low Trion levels. Black hair and green eyes. B-Rank. Childhood friend of Chika. Calls Yuma "Kuga." Born May 25th. Same age as Kuga, 3rd year junior high student. Attends Mikado City Third Junior High School. In the same class as Kuga. Calls Karasuma "Karasuma-senpai." Addresses Jin and Ikoma with "-san." Calls Oki and Mizukami "Senpai."

15 years old. Tamakoma Branch (Mikumo Unit 2). Origin: Neighborhood. First person: I (casual). Attacker. (CV: Nao Tamura). Likes Guest. Side Effect: Lie detection. White hair and red eyes. 141cm. B-Rank. Born July 18th. Calls Kyosuke "Torimaru-senpai." Was with Replica. Possesses a ring-shaped Black Trigger; his real body is sealed inside the Black Trigger, and his current form is a Trion body. His father, Yugo Kuga, became a Black Trigger and died. Same age as Osamu, 3rd year junior high student. Attends Mikado City Third Junior High School. In the same class as Osamu. Calls Osamu "Osamu."