30 years has passed since the beginning of the great war between the people of Jade and Kokuyou, which ended with Kokuyo as the winners and the losers of Jade becoming their slaves. And now the emperor has decided to perform a gladiators tournament called Shaba Juu Rengoku, and has proclaimed that the tournaments winner will receive the title of Shaba-ou and also the emperors throne. Meanwhile, a certain one-eyed swordman has become popular among the gladiators...
This is the story of one-eyed slave aiming to become emperor!