- Name: Hibino Kafka - Gender: Male - Occupation: Platoon Leader - Affiliation: Eastern Division, Third Unit - Personality: Righteous and kind; to put it negatively, he has a self-sacrificing nature. - Likes: Defense Force, alcohol, curry, hamburgers, cigarettes (currently quitting) - Height: 181cm - Features: Combat power output 1%. Can transform into Kaiju No. 8 due to an accident. Childhood friend of Ashiro Mina.

- Name: Hoshina Soshiro - Gender: Male - Occupation: Vice-Captain - Affiliation: Eastern Division, Third Unit - Personality: Relaxed, cheerful, and somewhat playful. - Likes: Reading, coffee, Mont Blanc - Height: 171cm - Features: Combat power output 92%. Speaks in a dialect. Uses short swords. Extremely fast runner.

- Name: Ashiro Mina - Gender: Female - Occupation: Captain - Affiliation: Eastern Division, Third Unit - Personality: Appears cold and stoic, but is actually very considerate. - Likes: Sweet food, baths, dried squid - Height: 169cm - Features: Combat power output 98%. Handles a heavy cannon weighing hundreds to thousands of kilograms by herself.

- Name: Narumi Gen - Gender: Male - Occupation: Captain - Affiliation: Eastern Division, First Unit - Personality: Has otaku tendencies; cool-headed and powerful. - Likes: Games, freedom, narrow spaces, ego-surfing - Height: 175cm - Features: Combat power output 98%. Uses a bayonet.

- Name: Shinomiya Kikoru - Gender: Female - Occupation: Vice-Captain - Affiliation: Eastern Division, First Unit - Personality: Arrogant and prideful, but also has a kind side that deeply values her comrades. - Likes: Kaiju extermination, black tea, large dogs - Height: 157cm - Features: Combat power output 55%. Uses a battle axe.

- Name: Ichikawa Reno - Gender: Male - Occupation: Defense Force Member - Affiliation: Eastern Division, Third Unit - Personality: Cool-headed, calm, and kind-hearted. - Likes: Music, cooking, shonen manga - Height: 174cm - Features: Combat power output 18%. Uses a firearm.