Image Color: Green Gender: Male Personality: Optimistic and friendly with a playful streak, but if his comrades are in danger, he reverts to his old self (Old-school Keroro is incredibly strong). Human Partner: Fuyuki Hinata (Male) Specialty: Has hidden potential; becomes powerful when reverting to his prime. Rank: Sergeant (Leader) Likes: Gundam models, sweet potatoes, mochi, cleaning Dislikes: Space Police, his father (more scared of him than disliking him), Jomi, Kaiju (somehow ended up hunting Kaiju together)

Image Color: Red Gender: Male Personality: Strong sense of military duty, prone to outbursts, blunt, and surprisingly tsundere. Human Partner: Natsumi Hinata (Female) (Fuyuki's older sister, sometimes called the ultimate weapon). Specialty: Expert marksman. Rank: Corporal Likes: Natsumi (a crush...?) Dislikes: Keroro when he's not invading Earth, Jomi, Kaiju (somehow ended up hunting Kaiju together)

Image Color: Navy Blue Gender: Male Personality: Dual personality; usually bright and cheerful, but fires the Tamama Impact when angry. Human Partner: Momoka Nishizawa (Female) Specialty: Using the Tamama Impact. Rank: Private Second Class Likes: Snacks, Keroro Dislikes: Women who like Keroro, Jomi, Kaiju (somehow ended up hunting Kaiju together)

Image Color: Yellow Gender: Male Personality: Gloomy with a signature "Ku-ku-ku" laugh. Wears swirl glasses; can't see a thing if they're removed. Human Partner: Saburo (Male) Specialty: Expert hacking. Rank: Sergeant Major Likes: Giroro(?) (a crush..?), curry, the suffering of others(?) Dislikes: Pure things, exercise, Angol Mois, Kaiju(?) (somehow ended up hunting Kaiju together)

Image Color: Blue Gender: Male Personality: Slightly timid, cries easily, and lacks presence. Often found crying in a corner because he's forgotten. Has many traumas. Human Partner: Koyuki Azumaya (Female) (A ninja) Specialty: Ninja skills. Rank: Lance Corporal Likes: Natto, peace, Zero Yasha (his pet dog) Dislikes: Being left out of things, his traumas, water (has a water-related trauma), Kaiju (somehow ended up hunting Kaiju together)

Gender: Male Personality: Positive, but his space is a bit messy so he doesn't seem to clean much. Energetic and bright. Appearance: Handsome with white hair. Eye Shape: Has mint-colored plus signs (+) in his eyes. Equipment: Kaiju Retriever Likes: Candy, idols(?), idol songs(?) (for real) Dislikes: Kaiju, Jomi

Gender: Male Personality: Negative and blunt, but tsundere. Appearance: Handsome with black hair (just go with that). Eye Shape: Has black pupils with minus signs (-) in them. Equipment: Laser gun Likes: Candy, clean things Dislikes: Kaiju, noise, Jomi

Gender: Female Personality: Has a complex about her voice, so she expresses herself through body language. Appearance: Beautiful and charismatic with a light purple bob cut (just go with that). Eye Shape: Has pink pupils with division signs (÷) in them. Equipment: None in particular (fights well with bare fists). Likes: Sadong-i, squishing Sadong-i's cheeks, cute things Dislikes: Kaiju, Jomi

Age: 5th Grade (12 years old) Personality: Playful but a coward. Gender: Male Appearance: Cute with short black hair. Likes: Demon Slayer, Shinbi's Haunted House, Baekseol-i (a girl in his class he has a crush on) Dislikes: Jomi

Acts way too cute and thinks she's adorable. A total pick-me girl who hates other women. Wears light blue pigtails (to look cute). Obsessed with men. Despises and loathes women.