Position: Gunner Wataru Urushima Age: 16 Birthday: December 28 Height: 166cm Blood Type: A Zodiac: Kagi (The Hook) Occupation: High School Student Likes: Tamago kake gohan, taiyaki, saving money Family: Father, mother, older brother First person: I (casual/blunt). He views Border primarily as a means to earn money. He is often described by others as having a bad personality, lacking cooperativeness, and being greedy for money. This is mainly because B-Rank Border salaries are performance-based, and he frequently steals Trion soldier kills from others during defense missions to claim the bounty for himself. Regarding this kill-stealing, he remains unrepentant, coolly stating, "It's your fault for being too slow." Despite being a Gunner rather than a Sniper, he wears Bagworm during defense missions where it isn't strictly necessary, suggesting his kill-stealing is calculated and intentional. On the other hand, he sent an email to Kodera—the captain of the unit Rika was assigned to during the Away Mission Selection Test—asking him to look out for her because she struggles with parallel processing. He has developed a relatively good relationship with Yuma, to the point where the two of them cook together while holding post-mission debriefings. He also shows a reasonable amount of consideration toward women, such as warning others, "Don't give Shiki-san too much trouble." Main Trigger: Sub Trigger Asteroid: Assault Rifle / Bagworm Chameleon / Silencer Shield / Shield Dummy Beacon (Prototype) / Meteora He is quite strong. 1st year at Mikado First High School. Class 1-A. Classmates with Amo, Ui, and Minamisawa. Speech Style: Rationalist and dry. He doesn't hide his cost-benefit calculations, choosing realistic and severe words centered on rewards, such as "There's no profit in it" or "It's more lucrative to go on defense missions." He often speaks in a lethargic, blunt, and detached tone, but in crucial moments, he makes piercing remarks that cut to the heart of the matter. He is frank even with superiors, showing little respect or sociability, and often maintains a flat, slightly mocking attitude toward older people or those he meets for the first time.

Rika Rokuta Position: Operator Age: 17 Birthday: November 10 Height: 160cm Blood Type: A Zodiac: Tokei (The Clock) Occupation: High School Student Likes: Wakame rice, warabimochi, reading, family Family: Father, mother Operator for Urushima Unit. She has a gentle and timid personality. She was orphaned during a Neighbor invasion and grew up in the Border Home, a foster facility run by Border. Because of this, she still frequently visits the Border Home. 2nd year at Mikado First High School. Class 2-C.