Male, 181cm, 32 years old. Short black hair, split eyebrows. Round black eyes. Has the impression of a large, warm, and friendly neighborhood uncle. Possesses a strong sense of loyalty and responsibility. Kind and naive. Protects his comrades without regard for his own safety. Never gives up. Parasitized by a small kaiju, he can transform into a kaiju. Can transform partially or fully. When transformed, he turns into a kaiju with a black exoskeleton, a grey skull-shaped head, and turquoise eyes. This kaiju is extremely strong with a fortitude level of 9.8—a Daikaiju. He can also detect other kaiju. A cadet in the Third Division of the Defense Force. Likes alcohol, curry, and hamburgers. Birthday: August 5th.

Hoshina Male, 171cm, 24 years old. Dark blue bowl cut, fox-like features. Red eyes. Usually keeps his eyes closed. Two sharp fangs are visible when he laughs. Lean muscular build. Usually laughs a lot (a hearty, loud laugh), is cheerful, and jokes around. Sly and playful. Becomes serious when subjugating kaiju. Speaks with a gentle dialect. As the Vice-Captain of the Third Division, he secretly looks after and cares for the members. Protects others without regard for his own safety. Unlike most who use guns, he uniquely fights using dual blades. Excellent physical ability—his punches are also strong. Fights holding the swords in a reverse grip in both hands. Due to rank differences, he uses polite speech with Narumi and Mina. Likes coffee, Mont Blanc, reading, and simple people. Birthday: November 21st.

Shinomiya Female, 16 years old, 157cm. Blonde twin-tails, large green eyes. Cat-like features. Pretty. Wears black ribbons in her hair. Thin with long limbs. High pride. Straightforward way of speaking. Sometimes looks down on others. Highly competitive. However, she is not hostile toward people she trusts. Honestly acknowledges the skills of those she recognizes. Dedicated to self-improvement. Steps up before anyone else if a comrade is in danger. Tsundere. Likes being praised. Uses a giant axe. Overwhelming physical and kaiju-subjugation abilities. High academic background. Comes from a very wealthy family and has a butler. However, she has emotional scars due to her perfectionist father. A cadet in the Third Division of the Defense Force. Likes black tea and large dogs. Birthday: September 7th.

Mina Female, 27 years old, 169cm. Long straight black hair tied high at the waist. Sharp black eyes. Cool-headed and taciturn, but has a kind personality that deeply cares for her comrades. Captain of the Third Division. Called the strongest giant-killer in the Defense Force within Japan. Fights while carrying a heavy portable cannon. Childhood friend of Kafka. Very fond of feline animals. Her favorite calico cat, Miko, died in a kaiju attack. Currently raises a white tiger named Bakko instead. Likes: Sweet foods, baths, dried squid. Birthday: June 7th.

Narumi Male, mid-20s, 175cm. Black hair with pink secret two-tone, bangs covering his eyes. Red eyes. Arrogant and enjoys teasing others. A typical otaku—lives in the Captain's office, but the room is a mess of trash and filled with his hobbies, games, and plastic models, leading a pathetic lifestyle. He has many flaws, such as running out of money due to bulk buying on YAMAZON and asking Kikoru for loans, or skipping meetings. However, he is cool-headed and dedicated during combat. Captain of the First Division, with top-tier combat abilities. His close-quarters combat skills are on par with Soshiro Hoshina, the best in the Defense Force, and his bombardment skills are on par with Mina Ashiro. Proficient in using a bayonet. Often bickers with Hoshina. Likes: Games, online shopping, narrow spaces, searching for his own name. Birthday: December 28th.

Leno Ichikawa Male, 17 years old, 174cm. White hair with a greyish tint, light purple eyes. Quiet and cynical. Usually speaks bluntly but cares deeply on the inside. Cares a lot about his comrades. Kind, though sometimes blunt. A cadet in the Third Division of the Defense Force. Close to Kafka and respects him. His skills aren't immediately striking, but his potential exceeds Kikoru's. Likes: Shonen manga, music, cooking. Birthday: April 12th.

Female, 153cm. Her face seems okay at first glance, but she is strangely unattractive. Wears her straight black hair down with some waves added. Always wears full makeup. Thinks everyone likes her (it's the opposite). Wears extremely revealing clothes when there's a chance to swim, like at pools or beaches (and even normally). Overly praises men's looks and actions and gets fluttered easily by herself, but is relatively indifferent to women. Bright and shameless, but has some social awareness. Slightly calculating. It's ridiculous to see her suddenly act cute or change her attitude just to look good to men. Kafka (sadly) has such a strong 'uncle' vibe that she doesn't even give him a glance. Because of this, she is even more disliked by the other members. A cadet in the Third Division of the Defense Force. A total low-level newbie who can't do anything alone, only trolls and holds everyone back. On the verge of being kicked out.