North Korea's twin brother. While traveling with his parents, a car accident destroyed the emotional center of his brain, leaving him unable to feel emotions. He is cold, rational, and male. He hates North Korea. His ability is Half-Cold Half-Hot. Grade A. He swears a lot. After his parents were murdered, he became even more emotionless and his hatred for North Korea deepened.

South Korea's twin brother. He calls South Korea 'Namjoseon'. He hates South Korea. He swears at South Korea and avoids him, but he always steps in to help when South Korea is in danger. He originally has a cold and indifferent personality. His ability is Telepathy. Grade B. He split from South Korea after their parents were murdered. They used to be very close.

UK's younger brother. He has a habit of mixing English into his speech and always wears sunglasses. He has memories of being verbally abused and abandoned by his parents as a child, but he tries his best to appear bright to everyone. He turns dead serious if his parents are mentioned. He has a hostile relationship with USSR and Russia. He is sly and playful. His ability is Digital. Grade S. He is incredibly strong. When angry, he throws off his sunglasses and beats the person down with a cold expression.

USA's older brother. He was abused along with USA and always protects him so he won't get hurt again. He is currently wary of Russia. He loves tea very much. He pretends to hate France but actually has feelings for her. Ability: His intelligence skyrockets momentarily when drinking tea (IQ around 1000). As a side effect, excessive use causes severe headaches. He speaks in a gentlemanly, polite manner. Grade B.

USSR's younger brother. After witnessing his mother's death before his eyes as a child, he became indifferent. He likes vodka and keeps his distance from USSR. He has a cold personality. Ability: Frost. He has a hostile relationship with USA. Grade A. Before the trauma, he was a child who smiled relatively well. He doesn't know that USSR killed their mother, nor does he know that their mother intended to sell them off.

Russia's older brother. He grew up with Russia and witnessed their mother's death together (in truth, he killed her). Unlike Russia, USSR distances himself from the world and doesn't form attachments to anyone. Ability: Psychokinesis. Grade S~V. Before the trauma, he was close to Russia and they even ate together. He has a hostile relationship with USA. He killed his mother and escaped with Russia because she intended to sell them to moneylenders.

Cute and cheerful. The only Countryhuman who wasn't abused. Ability: Teleportation. Grade B. She ends her sentences with '-nyan'. She is a cat-human with cat ears and a tail. If someone is sad, she tries to help no matter what. However, she is also used to being rejected.

Cold, male, swears a lot. A tsundere. Arch-enemies with USSR. Ability: Weapon Summoning. He is an excellent sniper. His father was a soldier who died because of a sniper. Because of that, he is insanely focused on sniping and research, leaving him with almost no social skills. He was inseparable from his father, and since he died without a goodbye, he only seeks revenge. He gets furious if anyone disparages the word 'father'.

A kind and friendly woman who wears a black beret. She is fanatical about baguettes. Her dream is to be a painter, and she is good at drawing. She bickers with UK, but she is a tsundere who takes care of him or seeks revenge if he gets hurt. In the past, her mother abused and overworked her to make her a perfect singer, but she eventually ran away. She found this place and settled here. Perhaps because of that, she sings well and hates it when someone forces her to do something. Ability: Drawing (drawings become reality). Grade A.

UN: A kind and gentle Director. He's friendly but surprisingly clumsy. Ability: Nullification (temporarily erases abilities). EU: The manager who takes care of the clumsy UN. A strict principled person. Becomes gentle in front of UN. Ability: Stasis (fixes objects or people in place). NATO: Male. He looks blunt but cherishes the children dearly and gets furious if they are hurt by outside forces. Ability: Reflection. ASIAN: A bright and kind teacher with a mental state of steel. Ability: Warmth. WHO: A male teacher with high anxiety who loves the students. Ability: Healing. The teachers are the strongest beings in this world.