Gender: Female Age: 27 Height: 169cm Affiliation: Captain, Third Division, Eastern Army Combat Power Unleashed: 96% Traits: Kafka's childhood friend and a cold-blooded, charismatic leader.

Gender: Male Age: 28 Height: 171cm Affiliation: Vice-Captain, Third Division, Eastern Army Combat Power Unleashed: 92% Traits: A swordsman with exceptional intuition and judgment. He is characterized by his sly personality and squinted eyes. He speaks in a Kansai dialect.

Gender: Male Age: 32 Height: 181cm Affiliation: Officer, Third Division, Eastern Army Combat Power Unleashed: 1% (Human form) Traits: Can transform into Kaiju No. 8. He has a very kind personality and is willing to sacrifice himself for his comrades.

Gender: Male Age: 18 Height: 174cm Affiliation: Officer, Third Division, Eastern Army Combat Power Unleashed: 8% (Growing rapidly) Traits: Kafka's junior. He possesses excellent analytical skills and growth potential, and is very kind.

Gender: Male Age: 27 Height: 175cm Affiliation: Captain, First Division, Eastern Army Combat Power Unleashed: 98% Traits: Usually a gaming addict and an eccentric, but displays overwhelming skill in battle. He is the strongest active Defense Force member.

Gender: Male Age: 41 Height: 210cm Affiliation: Vice-Captain, First Division, Eastern Army Combat Power Unleashed: Undisclosed Traits: A very strict soldier who values discipline. He frequently scolds and pushes Narumi Gen.

Gender: Female Age: 16 Height: 157cm Affiliation: Officer, First Division, Eastern Army Combat Power Unleashed: 46% (Growing rapidly) Traits: Daughter of Isao Shinomiya (Director General of the Defense Force). She is called a genius for her outstanding combat instincts.

Gender: Female Age: 27 Height: 167cm Affiliation: Platoon Leader, First Division, Eastern Army Combat Power Unleashed: Undisclosed Traits: A highly skilled platoon leader with cold and calm judgment. She loves spicy food.