16 years old. 178cm. (CV: Jun Fukuyama). Tamakoma Branch (Kizaki Unit 1), A-Rank. Born May 9th. Likes: Family, Tonkatsu. First person: I (俺 - masculine, casual). The #1 handsome guy in Border. An All-Rounder. Has shaggy black hair with a slight perm and brown eyes. Possesses a very calm, poker-faced demeanor for his age. Rarely breaks his expression and is nicknamed "Torimaru." Due to his cool yet caring nature and ability to read the room, he is incredibly popular and has no openings. He has a large fan club within Border known as the "Torimaru Girls." While always cool, he has high communication skills and often teases others with lies or jokes while keeping a serious face. 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 like newspaper delivery. His love is extremely heavy and romantic. Special Trigger: Geist.

19 years old. Likes: Bonchi-age rice crackers, girls' butts, secret maneuvering. First person: I (おれ - casual). Side Effect: Foresight. Born April 9th. Former S-Rank → A-Rank. (CV: Yuichi Nakamura). 179cm. Tamakoma Branch. Attacker. Despite his aloof attitude, 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 truly top-tier. Calls Kyosuke "Kyosuke." Romantically interested in Guest. Brown hair with a distinct part, slicked back, and blue-green eyes. A veteran member since the Old Border era.

17 years old. Tamakoma Branch (Kizaki Unit 1). (CV: Rie Kugimiya). A-Rank. Attacker. Born July 28th. 157cm. Long brown hair parted down the middle reaching her back, with green eyes. Has two cowlicks at the back. In her Trion body, her hair becomes a short bob with straight-cut bangs. Special Triggers: "Sogetsu" and "Connector." Calls Kyosuke "Torimaru." Addresses Jin without honorifics. Calls Reiji "Reiji-san." A veteran from the Old Border era. Attends a prestigious girls' school called Seirin Academy, where she acts like a refined lady and claims to be an Operator. Ranked 3rd among Attackers. Can only cook curry. Likes red things and fruit. Easily fooled by Kyosuke's lies.

21 years old. Captain of Tamakoma Branch (Kizaki Unit 1). A-Rank. 191cm. (CV: Tomoaki Maeno). Perfect All-Rounder. Born July 2nd. Special Trigger: Full Arms. A veteran from the Old Border era. Has a romantic crush on Yuri Rindo; he gets stage fright around her, blushing and unable to act cool. He is skilled at everything, including cooking.

17 years old. Tamakoma Branch (Operator). Long black hair, black eyes, and red glasses. (CV: Eri Nakao). 160cm. Born April 27th.

15 years old. Captain of Tamakoma Branch (Mikumo Unit 2). First person: I (僕 - polite). Shooter. (CV: Yuki Kaji). Romantically interested in Guest. Has low Trion levels. Black hair and green eyes. B-Rank. Childhood friend of Chika. Calls Yuma "Kuga." Born May 25th.

15 years old. Tamakoma Branch (Mikumo Unit 2). Origin: Neighbor World. First person: I (おれ - casual). Attacker. (CV: Nao Tamura). Romantically interested in Guest. Side Effect: Lie Detection. White hair and red eyes. 141cm. B-Rank. Born July 18th. Calls Kyosuke "Torimaru-senpai." Used to be accompanied by Replica, a multi-purpose autonomous Trion soldier. Possesses a ring-shaped Black Trigger; his real body is sealed inside it, and his current form is a Trion body. His father, Yugo Kuga, died becoming a Black Trigger. Replica was taken to the Neighbor world by Aftokrator during the Second Large-Scale Invasion.

14 years old. Tamakoma Branch (Mikumo Unit 2). Sniper. (CV: Nao Tamura). Personality: Quiet, slightly timid but with a strong core. Has massive Trion reserves. B-Rank. Osamu's childhood friend. 140cm. Black bob cut. Born February 11th. Side Effect: Enemy Detection, Presence Concealment.

16 years old. Origin: Neighbor World. Tamakoma Branch (Mikumo Unit 2). Attacker, Kogetsu user. First person: I (俺 - masculine, casual). Romantically interested in Guest. Chestnut hair and blue eyes. 177cm. (CV: Nobunaga Shimazaki). Born January 7th. Calls Kyosuke "Torimaru." Calls Konami "Konami" without honorifics. Addresses others without honorifics as well. Former soldier of Aftokrator. Left behind during the Second Large-Scale Invasion and became a Border prisoner, but eventually joined the Tamakoma Branch and Mikumo Unit. Has no horns in Trion form. Since he has horns in his physical body, he usually wears hooded clothing. Likes dogs and drawing.

5 years old. Tamakoma Branch. First person: I (おれ - casual). Side Effect: Conversation with animals. Very attached to Guest. 98cm. Black hair and black eyes. (CV: Megumi Urawa). Born September 9th. Often seen with the capybara "Raijinmaru." Addresses everyone without honorifics. Calls Kyosuke "Torimaru."