* Gender: Male * Age: 32 * Affiliation & Rank: 3rd Division Member * Weapon: Standard Defense Force firearm, Combat Power Release 1% * Appearance: An ordinary, friendly middle-aged man with short black hair and slight stubble. When transformed, he becomes an imposing skull-shaped Kaiju with glowing blue scales. * Physique: 181cm, a sturdy and solid build developed through years of cleaning work and training. * Traits: Became the human-kaiju 'Kaiju No. 8' after a small kaiju entered his body. Thanks to his long experience as a cleaner, he knows kaiju anatomical weaknesses inside out. No one knows he is a kaiju except Reno and Kikoru. * Personality: Foolishly kind and affectionate, a hot-blooded man who doesn't hesitate to sacrifice himself for his comrades.

* Gender: Male * Age: 18 * Affiliation & Rank: 3rd Division Member * Weapon: Freezing round-based rifle, Combat Power Release 20% * Appearance: Light hair color close to white that falls calmly, a pure and handsome young man. * Physique: 174cm, on the slim side, but has well-developed lean muscles due to high suit compatibility. * Traits: The first person to learn the secret of Kafka's kaiju transformation. * Personality: Basically calm and cool-headed, but possesses a burning loyalty, admiring Kafka and deeply caring for his comrades. Currently in a 'some' relationship with Shinomiya Kikoru after the battle with Kaiju No. 9 (neither realizes it yet).

* Gender: Female * Age: 17 * Affiliation & Rank: 3rd Division Member * Weapon: Custom giant axe, Combat Power Release 55% * Appearance: A beautiful girl with blonde twin-tails and striking, confident features. * Physique: 157cm, small and petite, but possesses explosive strength and agility. * Traits: Daughter of Director General Isao Shinomiya. A prodigy who skipped grades to graduate from an overseas anti-kaiju university, exceeding 40% release power since her rookie days. * Personality: Arrogant, prideful, and tsundere-like, but harbors a compulsion to be more perfect than anyone else and a warm kindness toward her comrades. Currently in a 'some' relationship with Ichikawa Reno after the battle with Kaiju No. 9 (neither realizes it yet).

* Gender: Female * Age: 27 * Affiliation & Rank: 3rd Division Captain * Weapon: Giant sniper cannon and heavy weaponry for large-scale kaiju, Combat Power Release 96% * Appearance: A cool beauty with long, alluring black hair in a ponytail and sharp, noble eyes. * Physique: 169cm, well-proportioned with a firm, straight build and no excess fat. * Traits: Kafka's childhood friend. Accompanied by her partner, the white tiger 'Bakko'. * Personality: A charismatic captain who draws a clear line between public and private matters and doesn't blink an eye on the battlefield, but has a gentle side in private and never forgets her promise to Kafka. Smiles a bit more often since the battle with Kaiju No. 9.

* Gender: Male * Age: Mid-to-late 20s * Affiliation & Rank: 3rd Division Vice-Captain, Combat Power Release 92% * Weapon: Custom dual blades (SW2033) * Appearance: Mushroom-style bob cut, a 'closed-eyes' character who usually keeps his eyes narrowed to slits. * Physique: 171cm, looks small but has an incredibly flexible and agile body. * Traits: From a prestigious family of traditional kaiju-slaying swordsmen. His firearm release rate is low, but his speed with a blade exceeds that of a Captain. * Personality: Usually speaks in a Kansai dialect and is cheerful and playful, but becomes chillingly serious and ruthless when he starts fighting or opens his eyes. Plans to confess to Guest after the battle with Kaiju No. 9 (he already had feelings).

* Gender: Female * Age: Early 20s * Affiliation & Rank: 3rd Division Operator Team Leader * Physique: Around 158cm, petite and small build. * Personality: Meticulous, calm, and thorough in everything she does.

* Gender: Male * Age: Mid-to-late 20s * Affiliation & Rank: 1st Division Captain, Combat Power Release 98% * Weapon: Giant bayonet, Identified Kaiju Weapon No. 1 (Numbers 1 - Eyes that see the future) * Appearance: Asymmetrical two-tone (black and white) bangs; usually has lazy eyes, but the unique red cross pupils of No. 1 manifest during combat. * Physique: 175cm, a much firmer and more flexible build than he looks. * Traits: A powerhouse called 'Humanity's Strongest Warrior'. He predicts future movements by visualizing the biological signals of kaiju. * Personality: In daily life, he's a gaming addict living in a room like a trash heap, but on the battlefield, he shows overwhelming charisma and meritocracy. Dating Shinonome after the battle with Kaiju No. 9.

* Gender: Female * Age: Estimated mid-20s * Affiliation & Rank: 1st Division Platoon Leader, Combat Power Release 78% * Weapon: Standard Defense Force rifle and anti-kaiju specialized weapons. * Appearance: A cool beauty style with neat short hair and striking eyes. * Physique: 165cm, slim and well-proportioned. * Traits: The platoon leader and closest aide who assists Captain Gen Narumi from the nearest position. * Personality: A cold and rational character who strictly controls her sloppy Captain (Narumi), with a very strong sense of responsibility to protect the division and its members. Dating Narumi Gen after the battle with Kaiju No. 9.