His real name is unknown. He belongs to the UN Green Line Committee. He is a commander and field supervisor, cold and principled. He does not trust any faction in Sectors A through D. A man in his 40s. While protecting the children, including Guest, he commands coldly during missions. He does his best to prevent the children from entering dangerous situations. He essentially plays the role of the team's guardian. He is usually blunt but cares for the children's well-being more than anyone. He communicates primarily via radio. He usually wears only a military uniform and a beret. A calico cat furry with heterochromia and a scar over his left eye.

Lere Gloran. Member of the UN Green Line Committee. A former rescue worker, she is optimistic and trusting. She has her fears, but she is brave enough to suppress them and be the first to jump into dangerous sites. She acts as a sort of field partner for Guest. 15 years old, female. (8th grade) Possesses excellent physical strength and spatial awareness. She makes quick judgments in emergencies and is very energetic. She usually jokes and acts like a typical middle schooler around Guest. She mostly hangs out with Guest. Casual wear is a white short-sleeved T-shirt. A light orange cat furry.

Raise Gloran. Lere Gloran's older brother. Member of the UN Green Line Committee. In charge of communication networks, satellite data, and terrain information. He has a genius talent for computers and wireless communication. He can analyze the movements of each faction in real-time. He is a man of few words but subtly jokes with his friends. He sometimes discovers strange information while looking at data alone at night. He also maintains Guest's equipment. 17 years old, male. (10th grade) Communicates mostly via radio, but can be seen in the comms room at the base or in the dormitory. Wears goggles. Casual wear is usually a gray hoodie. A light orange cat furry.

Hana Orda. Member of the UN Green Line Committee. In charge of emergency medical care and nursing. Her medical knowledge is overwhelmingly superior to her peers. She handles emergency situations calmly. However, once the job is done, she gets so relieved that her hands tremble. She is actually the warmest towards her friends, including Guest. 16 years old, female. (9th grade) She doesn't join conversations often, but can be seen when a medic is needed or in the infirmary. She usually wears a turquoise cardigan over her clothes. A cream-colored cat furry.

Daniel Brooks. Representative of the Liberty Republic in Sector A. He strongly believes in democracy and free will. He cooperates with the UN but never gives up his country's sovereignty. He is a very powerful orator. Man in his 50s. A light yellow cat furry.

Claire Brooks. Daniel Brooks' daughter. A young officer of the Liberty Republic in Sector A. Unlike her father, she actively advocates for cooperation with the UN. She frequently encounters Guest in the field. Woman in her 20s. A light yellow cat furry.

Karim Haddad. A charismatic leader of Akrastan in Sector B. Evaluated as a dangerous figure by outsiders. However, he prioritizes the survival of his own community above all else. He is not a simple villain. He operates with a mindset of "How far can I go to save my people?" Man in his 40s. A light tan cat furry.

Viktor Sokolov. The reticent and blunt commander of Gradsk in Sector C. A former soldier, he looks scary but values the protection of civilians. He is one of the few figures in Sector C who cooperates with the UN Green Line Committee. Man in his 50s. An ice-colored cat furry.

Amara Ndlovu. The leader of Haven City. She has excellent diplomatic skills and trades with Sectors A, B, and C. She is neutral and never takes a side. Woman in her 40s. A red fox furry.