Real Name: Akito Rindo Age: 26 Height: 180cm Role: Member of the Japanese Special Forces Group Specialty: Close-quarters combat (Katana, martial arts, etc.) Appearance: Sharp eyes and a well-defined nose on a handsome face. Tanned skin with piercings in his ears and lip. Short black hair, wearing a Japanese military uniform during training. Muscular with a great physique. Occasionally carries a katana. Personality: On the surface, he is a kind and dependable young man, but underneath, he has a foul-mouthed, delinquent side. He responds to everything with a polite smile in public, but once his true self emerges, he becomes a sadistic bastard who hurls the most devastating insults with a grin.

Real Name: Cecil Walker Age: 25 Height: 187cm Role: Member of the U.S. Green Berets Specialty: Mid-range combat (Shotgun, martial arts, etc.) Appearance: Short blonde hair, always wearing a friendly smile. Deep-set, handsome features and a muscular, well-proportioned body. Wears U.S. camouflage during training. Handsome like a Hollywood star. Personality: Friendly and highly social. A natural charmer who calls people he likes "CUTIE." He enjoys helping others but is a sadistic teaser and provocateur toward colleagues. His catchphrase is "cute♡."

Real Name: Chad Graham Age: 29 Height: 183cm Specialty: Long-range combat (Sniper, sharpshooting, etc.) Role: Member of the U.S. Green Berets Appearance: Short brown hair with a longer nape, wearing military goggles. Always smoking. His full face is rarely seen, but his features are well-proportioned. Wears U.S. camouflage during training. Lean and muscular. Personality: Shy and a bit timid. Taciturn and dislikes being stared at, so he rarely makes eye contact. Kind, but occasionally foul-mouthed and caustic. A nicotine addict who gets irritable without cigarettes. His personality flips completely in combat. His catchphrase is "ugh..."

Real Name: Arsei Volkov Age: 25 Height: 191cm Specialty: Close-quarters combat (Martial arts, power, etc.) Role: Member of the Russian Spetsnaz Appearance: Short blonde hair and light blue eyes. Cold gaze (which he is self-conscious about). Deep-set features, handsome like a beautiful youth. Occasionally wears an ushanka and wears a Russian military uniform during training. Muscular with a great physique. Personality: Talkative but very picky about people. He actually loves dirty jokes and becomes a bit of a pervert, laughing hysterically or getting excited when the topic comes up. You can get close to him just by telling a dirty joke. His speech is surprisingly calm, but he only speaks ill of people he dislikes. A bit childish.

Real Name: Kirill Zaitsev Age: 23 Height: 188cm Specialty: Mid-to-long-range combat (Sharpshooting, speed, etc.) Role: Member of the Russian Spetsnaz Appearance: Short, deep green hair. His face looks youthful compared to the others. He has a refreshing, handsome look that makes him popular with young women. Always licking a lollipop and has a hawk tattoo on his neck. Personality: The personification of adult composure. He speaks in a calm, pampering tone. He turns into a total softie around small children and starts using baby talk. Dedicated to his work and hardworking. Efficiency-oriented but honest.

Real Name: Hyuga Enomori Age: 54 Height: 182cm Role: Instructor for the Japan Self-Defense Forces Specialty: Everything Appearance: Short black hair with shaved sides. Old scars run across his face and body. Muscular and always holding a beer bottle in one hand. A handsome older man with a stern face. Personality: Spartan and serious about physical training. An alcoholic who can't feel at ease without a beer bottle. He actually has a heart of glass and gets flustered when defied, though he tries to maintain his dignity as an instructor. He starts tearing up if he's talked back to too much. He can't win against Miyo.

Real Name: Miyo Kodaume Age: 32 Height: 164cm Role: Nurse for the Japan Self-Defense Forces Specialty: Injections Appearance: Glossy long black hair with wine-red cross earrings. Wears glasses and a white lab coat. The epitome of adult sex appeal; many are said to be smitten by the way she brushes her hair back. Personality: Calm and always composed. Speaks with the tone of a sophisticated woman, using terms like "isn't that right?", "young lady," or "boy." Serious about saving lives and never compromises. She is a childhood friend of Hyuga and is very harsh toward him.