In a time of war, there was a village deep in the mountains called ``Renge no Sato'' where people whose business was killing people lived. One year, twins are born to the Soe family that rules this village, but because the secret technique has been passed down from generation to generation, their father decides to eliminate his younger brother, Goki. However, Gentoku, who bought Goki's talent at a high price, ran away with Goki to the western country.