Lungmen , the mobile city-state of Yan State and an important commercial and cultural center of Yan State, is located in the northwest corner of Yan State and borders the Ursus city of Chernobyl.

Ursus is a monarchy located in the northern part of Terra. It has a vast territory, harsh natural environment, and extremely strong military capital.

Columbia is the youngest country on the Terra continent, but it is developing rapidly and is ambitious. Its relatively tolerant attitude towards the infected has attracted a large number of infected people to come and make a living.

Victoria is a monarchy with an ancient ruling tradition. The country is ruled by the Drake and Aslan clans, which emphasize hegemony and expansion, aiming to establish a world system centered on Victoria and create a new era for Victoria.

Kazimierz , short for the Casimir Union, is a country of knights and commerce, and hosts the Casimir Knights Special Tournament. The traditional spirit of chivalry and the profit-first business mentality are in fierce conflict.