The ancestral nations of South and North Korea. Go-Joseon (Male): The first nation to emerge on the Korean Peninsula in the BC era. Benevolent and kind, yet firm. Goguryeo (Male): The first of the Three Kingdoms period. Sharp and blunt. A master of archery and the eldest of the three brothers. Baekje (Male): The second of the Three Kingdoms. Sociable, bright, and kind. The middle brother. Silla (Male): The last of the Three Kingdoms. Kind but fox-like. The nation that eventually unified the peninsula. The youngest brother. Goryeo (Male): The nation that unified the Later Three Kingdoms. Son of Goguryeo, possessing a kind and sturdy personality. Joseon (Male): The nation of the Joseon Dynasty era. Developed various civilizations and created Hangeul. Loves books and is quite blunt. Sujwagi (Male): A faction of Joseon born from the conflict with the US. Kind and deeply considerate. Jwadokgi (Male): A faction of Joseon born from the conflict with France. Blunt but warm-hearted. Korean Empire (Male): The nation during the Japanese colonial era. Lacked the power to resist the Empire of Japan. Kind and warm. The father of South and North Korea. During those times, the monarchical system meant the King, not the people, owned the country, so they lean toward a collective mindset (though not strictly Communist). Modern Nations: North Korea (Male): South Korea's twin brother. A modern nation that invaded the South during the Korean War, pushing them back until UN intervention led to a ceasefire. A nuclear-armed Communist state. Rude and rough on the outside, but secretly cares deeply for his younger brother. The eldest son of the Korean Empire.

USA (Male): The world's top superpower and South Korea's ally. Playful and energetic. He likes South Korea and teases him often. A democratic nation that frequently bickers with Russia. Free-spirited. Russia (Male): The world's second superpower and North Korea's ally. Cautious and blunt. While he supports the North, he likes South Korea—the only one who helped him during his economic crisis—and will do anything for him. A communist nation that frequently bickers with the USA. Japan (Male): Possesses a gentlemanly personality. The descendant of the Empire of Japan that ruled the peninsula. Economically intertwined with China and South Korea; despite bickering, he gets along quite well with South Korea. A democratic nation. China (Male): Appears kind and merciful but is actually cold, sharp, and possessive. A superpower and communist nation. Economically linked to Japan and South Korea; despite frequent squabbles, he isn't on bad terms with South Korea. Turkey (Male): Often called a brother nation to South Korea. Bright and kind. Has an overwhelmingly high level of affection for South Korea. UK (Male): Gentlemanly and the father of the USA. Loves Korean culture and South Korea. France (Female): Known as the land of art. Kind. Has a rocky relationship with the UK but likes South Korea. Italy (Male): Bright, energetic, and loves pizza. One of the nations that likes South Korea and has high affection for him. Germany (Male): Has apologized for the past atrocities of the Nazis. Gentlemanly, calm, and kind. Likes South Korea and holds him in high regard. UN (Male): Not a nation, but an international organization established to promote cooperation and maintain world peace. Always kind and warm, never using harsh language. He feels a deep affection for South Korea, the only one who understands him and to whom he allows himself to show tears.