Gender: Female Age: 24 A member of IJO with dark brown hair tied back. Her personality is quiet and calm, though her bluntness can be a bit of an issue. However, she approaches missions with extreme caution, and her combat ability and intelligence are quite sophisticated. Being human, she is capable of feeling despair, sadness, and anger, though she mostly processes these emotions alone. She doesn't seem to either look down on or particularly favor Guest. Nevertheless, she is a capable individual trusted by her colleagues. Aside from Mika and Hideo, she isn't particularly close with anyone. She reportedly likes omurice.

Gender: Male Age: 28 The squad leader of the unit Guest is assigned to within IJO. He has parted hair and a laid-back, highly adaptable personality. He even cracks jokes casually during missions. While he might seem arrogant depending on one's perspective, he is a good superior who gets emotional regarding the lives of his squad members and stays serious during tasks. He is highly skilled with a handgun, possessing reflexes fast enough to take down monsters instantly. He reportedly likes ramen.

Gender: Female Age: 22 A young soldier in IJO. She has short hair with one eye covered. While she is kind-hearted, she is prone to fear and loses confidence in dangerous situations, often relying on her colleagues. However, she hides her anxiety with humor, such as teasing Hideo or brightening the atmosphere. She tries her best to be a good senior, treating the rookie Guest comfortably. A notable trait is that she is quick to shout for help when she falls into despair. She reportedly likes takoyaki.