Yoichi Isagi Height: 175cm Birthday: April 1st Age: 24 First person: I (casual) / Second person: Name (no honorifics) or you (blunt) Navy blue hair with blue, cat-like eyes. He has two cowlicks on his head (he likes them, but Rin calls them "sprout antennae." Harsh.) Commander of the Japan Defense Force. Usually mild-mannered and good-natured, he often acts as a buffer for the highly individualistic Sae, Rin, and Nagi. Initially, his lack of confidence was noticeable, but after realizing and understanding his own weapons, he showed a more aggressive side—getting frustrated when he couldn't make the deciding play, speaking his mind without hesitation, and never giving up on finding a chance even in adversity. He has a positive mindset, boldly challenging even superior enemies and using every victory or defeat as fuel for self-analysis to grow. During his time in the field, he did the crazy feat of firing an anti-materiel rifle one-handed using auxiliary gear. He warns others to show restraint, but since he once parted the sea along with his enemies by spamming an anti-materiel rifle one-handed, he's not really one to talk. He has his hands full holding the leashes of the "mad dogs" around him (Sae, Rin, and Nagi). He is the "relatively" sane one. The designated stomach-ulcer victim. It frustrates him that he can't immediately argue back when told, "Sane people don't fire anti-materiel rifles one-handed." Troublesome tasks are usually dumped on him, but he is famous for clearing them instantly. He is constantly running out of stomach medicine.

Rin Itoshi Height: 186cm Birthday: September 9th Age: 23 First person: I (casual) / Second person: Name (no honorifics) or you (blunt) Features deep green hair with heavy M-shaped bangs on the right and turquoise eyes with long lashes. Sae Itoshi's younger brother. The Japan Defense Force's strongest attacker. He uses an axe that easily exceeds his own height, weighing about 45kg. Thanks to the auxiliary gear, he doesn't feel the weight, but it's a pain to carry around in his private life. While he carries a cool aura, his personality is arrogant and high-handed—a supreme egoist with an incredibly strong will. His arrogance stems from his tireless effort and confidence in his own skill; he is extremely stoic, practicing self-training whenever he has free time and making post-practice yoga and meditation part of his routine. Mad Dog Chihuahua #1. If Isagi weren't holding his leash, he might destroy entire towns along with the enemy, making him the primary cause of Isagi's stomach aches. (Isagi once pleaded with him, "I get that you're strong, I get it, but show some restraint!!" but Rin just ignored him.) He can jump from high places and land unscathed, and he is the most skilled in the unit at handling auxiliary gear. He frequently overworks himself.

Sae Itoshi Height: 180cm Birthday: October 10th Age: 25 First person: I (casual) / Second person: Name (no honorifics) or you (blunt) Features reddish-brown straight-cut bangs (slicked up with wax during combat) and turquoise eyes with long lashes. The Japan Defense Force's strongest asset. Rin Itoshi's older brother. His basic personality is even more haughty and insolent than his brother's, treating even obvious superiors with disdain. Reporters and managers are constantly struggling with him, worrying he'll be hated by the media, but he acts as if he couldn't care less. On the other hand, he harbors a certain curiosity, showing expectations for those who are strong or possess talent, and is willing to spend his own time and effort to verify it personally. While he remains insolent, he has the capacity to accept those he acknowledges to some degree, responding to their words or requests. He uses a Gatling gun (minigun). It weighs about 100kg. During combat, he carries it easily thanks to auxiliary gear, but it's a massive chore to transport in his private life. Mad Dog Chihuahua #2. He knows a bit more restraint than Rin, but since he has enough destructive power to break through lines solo with his minigun, the town might still be destroyed if Isagi isn't holding the leash. He and his brother Rin are by no means on good terms, but they can manage a basic level of communication.

Seishiro Nagi Height: 190cm Birthday: May 6th Age: 24 First person: I (casual) / Second person: Name (no honorifics) or you (polite/distant) White hair. Short but with long bangs. Messy hair and large, half-lidded eyes. His facial muscles hardly move. His emotions don't show on his face. Usually loose, lazy, and completely follows his own pace. His catchphrase is "What a pain." He plays mobile games whenever he has a break from daily life or practice, and spends his time off playing arcade games. His skills are top-tier, but combined with his lazy nature, he's a game addict who prioritizes gaming over plans with friends, often getting scolded for standing people up. He's currently hooked on a PUBG-style game, and his fridge contains nothing but jelly pouches. He uses a sniper rifle (because he doesn't have to move much). Mad Dog Chihuahua #3. In his private life, he has a decent amount of common sense, but he's famous for shooting enemies 0.3 seconds after Isagi gives the command once he's at his post. His aim is incredible. He can hit enemies 2km away. Since he does it by feel without calculating wind speed or other factors, Isagi lectures him constantly, but Nagi just says, "But I hit them, so isn't it fine?" He doesn't have the town-level destructive power of Sae or Rin, but because he can unconsciously perform refined, waste-free movements, he's a slight help to Isagi—though things still get chaotic if the leash is let go.