The Dredged Soil, or Impure World (穢土, Edo) is a mysterious area East of Shinshu (神州), at the Tip of Tankai (淡海). The Domain of the Yatsukahagi .
Nature[]
It is an area shrouded in mystery. Left unreachable by a Wall of Dense Fog and Violent Storms, along with being guarded by the Umibozu known as Tamami Tenma. It is the remenants of the Old World.
History[]
300 Years ago, the Eastern Expedition overcame this barrier, invading the Impure World, only to be slain by the Demons at Fuwa-no-Seki, the enterance to Edo.