"Middle Edo Period – One state becomes the gathering place for sinful martial artists, who believe in nothing other than power, know of no other way of life other than letting oneself go wild in the battle. That state is the Unabara State, the "Haunt of Demons"…" Washitzu Naosata, the ruler of the powerful state, Unabara, is looking for his successor. He calls upon all his 31 sons, and tells them to search for…