Age: 29 Unleashed Power: 98% Estimated Height: 175cm Appearance: Asymmetrical two-block hair. Usually has sleepy eyes, but they turn sharp and fierce during combat. Features: A pathetic gaming otaku in daily life, but Japan's strongest warrior who predicts the future on the battlefield. Captain of the 1st Division. Likes: Games, online shopping, ego-searching, freedom, narrow spaces. Main Weapon: Large Bayonet (GS-Aremic), Identified Kaiju Weapon Contact Lens Type (Numbers 1). Weapon Features: A massive bayonet combining a gun and a blade for simultaneous slashing and shooting. The lenses implanted in his eyes allow him to predict the opponent's future movements.

Age: 26 Height: 171cm Unleashed Power: 92% Appearance: A sharp-looking character with a mushroom cut (bob cut) and squinting eyes. Features: Usually playful and sly, but a master of high-speed dual-wielding who surpasses even captains in close-quarters combat. Speaks with a Kansai dialect. Vice-Captain of the 3rd Division. Favorite Food: Mont Blanc, coffee. Likes: The Defense Force. Main Weapon: Defense Force Custom Dual Blades, Identified Kaiju Weapon Suit (Numbers 10). Weapon Features: The only one in the firearm-focused Defense Force to use dual swords. Recently fused with the sentient Kaiju suit 'Numbers 10' to deliver high-speed slashes.

Age: 27 Height: 169cm Unleashed Power: 96% Appearance: A cold beauty with a ponytail and cat-like eyes. Features: Kafka's childhood friend and the poster-girl Captain of the Defense Force who snipes Kaiju with a massive cannon. Captain of the 3rd Division. Favorite Food: Sweet foods, dried squid. Likes: Baths, cats. Main Weapon: Giant Sniper Cannon, Large Autocannon. Weapon Features: Handles ultra-large firearms that far exceed human scale. Her dedicated partner, the white tiger 'Bakko,' supports the massive recoil of the cannon with its body.

Age: 18 Height: 174cm Appearance: A handsome boy with calm, silver (white) hair and drooping eyes. Features: Kafka's partner who keeps his secret, a genius prospect who uses freezing rounds. 3rd Division. Likes: Listening to music, cooking, reading shonen manga. Main Weapon: Defense Force Standard Rifle (Freezing Rounds), Identified Kaiju Weapon Suit (Numbers 6). Weapon Features: Specializes in using freezing rounds to freeze enemies. Fights wearing Numbers 6, the fastest and most difficult Kaiju suit to handle in Defense Force history.

Age: 32 Height: 181cm Unleashed Power: 1% Appearance: A typical middle-aged man with short black hair and slight stubble. Features: A late-blooming recruit with excellent Kaiju anatomy knowledge and the transformational power of the strongest Kaiju No. 8. 3rd Division. Favorite Food: Alcohol. Likes: The Defense Force. Main Weapon: His own body (Transforms into Kaiju No. 8, keeps it a secret), Defense Force Standard Rifle. Weapon Features: Uses standard firearms in human form, but when transformed into Kaiju No. 8, he crushes enemies with bare fists, kicks, and ultra-powerful compressed shockwaves.

Age: 16 Height: 157cm Appearance: A girl with blonde twin-tails and a flashy, cute visual. Features: The genius daughter of the Director General who wields a giant custom axe despite her small stature. 1st Division. Favorite Food: Black tea (especially Darjeeling Premium). Likes: Kaiju extermination, big dogs. Main Weapon: Shinomiya Family Custom Giant Axe, Identified Kaiju Weapon Suit (Numbers 4). Weapon Features: Uses a custom axe larger than herself, pulling a trigger on the blade to explode powerful shockwaves. In the later volumes, she inherits her mother's memento, the winged suit (Numbers 4).

Age: 24 Height: 165cm Appearance: An intellectual and sharp impression with neatly tied hair and glasses. Features: Handles the clean-up for Captain Narumi and supports the front line with heavy weaponry. Platoon Leader of the 1st Division. Favorite Food: Very spicy, delicious food. Likes: Shopping, overcoming adversity. Main Weapon: Large Gatling Gun (GG-5012). Weapon Features: As a platoon leader responsible for the 1st Division's firepower, she supports the front line by firing a heavy Gatling gun with incredible fire rate and weight.

Age: 18 Height: 178cm Appearance: Neatly gelled parted hair with a solid and serious impression. Features: A model student from the Ground Self-Defense Force who fights with standard military precision. 3rd Division. Likes: Sports (especially basketball), reading historical novels, hamsters.

Age: 18 Height: 176cm Appearance: A calm impression with a neat bob-like hairstyle and squinting eyes. Features: The son of a major weapons manufacturer CEO, a top-tier elite recognized for his strategy and skill. 3rd Division. Favorite Food: Snack crackers. Likes: DIY (furniture making, etc.), solo camping, classical music.

Age: 18 Height: 177cm Appearance: A flashy dyed-hair look with a single strand of bangs hanging down, giving a delinquent impression. Features: A hot-blooded, loyal member with a talent for explosive output during crises. 3rd Division. Favorite Food: Gorigori-kun (soda-flavored ice bar). Likes: Rock music, motorcycle riding, tokusatsu heroes.