The far eastern land is called Tokiwa-Dai by those that live there, which in the ancient language of the east means "Forever Strong". The land is divided into three distinct and separate parts by geography and politics.
The easternmost section is ruled by the Tenno, or emperor. Under his iron fist, five of the nine noble clans are banded into a government, with resistance from the other four clans.
The westernmost part of Tokiwa-Dai is one of the most dense jungles in the world, surrounded to the north and south by mountains and the east by swamps. The clans that inhabit the jungle areas are called the mutant races by the humanoids of the east. They are half-man/half-beast races created by long dead wizards. Even the powerful Tenno leaves the ferocious mutant races be.
Finally, stuck in the middle of these two lands are the Cities on the Lake. These four cities fall under neither the powers of the Tenno or the mutant races, but face the wrath of both. Mainly fishing towns, the cities have small militias and barely withstand the forces that wish to control them, only able to stay sovereign by playing both sides against each other.