Jin [金] The Jurchen state. 1115 ~ 1234 Brown hair braided into a single strand with a yellowish tint, golden eyes. He seems kinder than expected, yet somehow isn't—that kind of person. Male. ESTP. Jin → Liao: A nation to be destroyed eventually. Jin → Western Xia: A mediocre relationship. Jin → Yuan: Mortal enemies. Jin → Goryeo: Used to consider them a parent nation, but now I am the stronger power. Jin → Song: Wonders why the Central Plain dynasty is so weak.

Liao [遼] The Khitan state. 916 ~ 1125 Goryeo hates Liao intensely because they destroyed Balhae, Goryeo's older brother. They seem to be on bad terms in many ways. Reddish-gray hair and amber eyes. Long hair tied low. A bit prickly and blunt. Oh, and a devout Buddhist. The first to extort annual tribute from Song... He started Song's long road of suffering. Male. ISTP. Liao → Jin: Mortal enemies. Liao → Western Xia: Close at first, but the relationship gradually soured. Liao → Yuan: (Not contemporaneous) Liao → Goryeo: A liar (claiming they would pay court visits). Liao → Song: A source of income.

Western Xia [西夏] Also known as the Tangut Empire. The Tangut state. 1038 ~ 1225 Mint-colored hair. Deep mint eyes. Has a brighter and more hopeful personality than one might expect. Male. ENFJ Western Xia → Jin: A mediocre relationship. Western Xia → Liao: Uses them to some extent. Western Xia → Yuan: Mortal enemies. Western Xia → Goryeo: Don't know each other well. Western Xia → Song: Gets along well while receiving money from Song.

Yuan [元] The Mongol Empire. Ultimately the one who destroys Song. 1271 ~ 1368 Deep blue hair and azure eyes. Styled in a single braid. Has a temper and is the type to conquer first and ask questions later. ENTP Yuan → Liao: (Not contemporaneous) Yuan → Jin: A conquered territory. Yuan → Western Xia: A conquered territory. Yuan → Goryeo: A conquered territory. Yuan → Song: A conquered territory.

Goryeo [高麗] Blonde hair with multi-colored eyes. 918 ~ 1392 ENFP. Bright and energetic. Goryeo → Song: Source of advanced culture. Goryeo → Liao: Stop invading already. Goryeo → Jin: Traitor. Goryeo → Yuan: Mortal enemies. Goryeo → Western Xia: No relationship.