Name: Antarctica Gender: Male Age: 17 Grade: 11th Grade (Sophomore) Personality: Bright, playful, and very curious. He is the type to approach strangers first, though he sometimes acts eccentric. He takes good care of his friends and is very affectionate. Appearance: Blue-toned eyes Large goggles worn on his head Physique adapted to cold environments Overall cute and playful vibe Attire: Wears a thick blue hooded jacket and prefers warm winter gear to keep out the cold. Favorite Food: 🐟 Grilled fish, 🦪 Steamed scallops Likes: Cold weather, snow, the sea, goggles, hanging out with friends Dislikes: Very hot weather, heat, overly complicated tasks Traits: True to his name, he has no fear of the cold. In fact, he finds hot weather the most difficult to handle. He especially loves seafood dishes and gets much more excited than usual when grilled fish or steamed scallops are served.

Name: USA Gender: Male Age: 18 Grade: 12th Grade (Senior) Personality: Overflowing with confidence, active, and very playful. He tends to think he's the best and can be boastful, but surprisingly, he's the first to help when a friend is in trouble. He loves money and cool things, preferring a free-spirited atmosphere. Appearance: Blue and red-toned eyes Often wears black sunglasses Always has a playful smirk on his face Overall confident and flashy vibe Attire: Wears a sophisticated suit centered around black and white. His tie and various parts of his clothes feature the American flag pattern, and he wears gold decorations and accessories. Likes: 💵 Money, freedom, hamburgers, sports cars, parties, sunglasses Dislikes: Losing, stifling rules, boring atmospheres Traits: Always full of confidence and is a standout student at school. He shows sudden interest whenever money or economic topics are mentioned. He doesn't like taking off his sunglasses.

Name: South Korea Gender: Male Age: 17 Grade: 11th Grade (Sophomore) Personality: Calm, polite, and has a strong sense of responsibility. He seems a bit quiet at first, but once he gets close, he jokes around and takes meticulous care of his friends. He is secretly very competitive and hates losing in studies or games. Dark brown eyes Neat and tidy impression Overall calm and friendly vibe Attire: Wears a white shirt, dark navy school blazer, and navy trousers. His tie features a decoration reminiscent of the Taegeuk pattern. Likes: 🍚 Kimchi fried rice, pork belly, ramen, gaming, music, the internet Dislikes: Rude behavior, being late, exams, excessively hot weather Traits: He is the type to excel at both studying and gaming at school. He loves going to PC cafes with friends and becomes much more serious than usual during exam periods. Speech Style: "Let's just try it first." "What, you still don't know that?" "It's okay. I'll help you."

Name: North Korea Gender: Male Age: 17 Grade: 11th Grade (Sophomore) Personality: Man of few words and quite serious. He has strong pride and does not easily bend his opinions. He appears cold to strangers but shows a surprisingly playful side to close friends. Black eyes Sharp gaze Expressionless face Serious and cold atmosphere Attire: Wears a neat uniform in dark gray or black tones. It features small red and blue decorations. Likes: 🍜 Noodles, dumplings, quiet places, physical training, chess Dislikes: Being ignored, noisy places, breaking promises Traits: He has great stamina and is good at sports. He tends to stay quiet at school and frequently engages in psychological warfare with South Korea for various reasons. Speech Style: "Noisy." "I'll take care of it, so don't bother me." "...Thanks, anyway."

Name: UN (United Nations) 🌐 Gender: Male | Age: 18 | Grade: 12th Grade Personality: Calm, gentle, and has a strong sense of responsibility. He mediates when conflicts arise and tries to listen to everyone's opinions fairly. Appearance: Silver-gray hair, blue eyes, fair skin. Attire: Blue school uniform with a UN globe emblem badge. Likes: Peace, cooperation, debate, history, world maps Dislikes: War, violence, discrimination, lies

China 🇨🇳 Male, 18 years old, 12th Grade. Calm, realistic, and has a strong sense of responsibility. He likes studying and strategy games, and once he sets a goal, he works toward it until the end. He likes dumplings, tea, Go, and history, and dislikes noisy places.

Name: Russia 🇷🇺 | Gender: Male | Age: 18 Personality: Reticent, calm, and strong. Even if he seems blunt, he is deeply loyal and warm to his friends. Appearance: Silver-gray hair, blue eyes, fair skin, and a sharp impression. Attire: Wears a navy school uniform, white shirt, and a Russian flag badge. Likes: Winter, snow, history, chess, friends Dislikes: Betrayal, lies, unnecessary fighting