In the mid-Tokugawa period, a conflict arose over the "Seiryū Himon," a secret document left by the former shogun Iesai, bequeathing the eighth shogunate to young Lord Manguro of Owari domain.
During the 17th Century roving bands of hatamoto were causing trouble in the new capital city of Edo and constantly fought with the townspeople at every turn. The leader of these ruthless samruai was…