Ryutaro is a spy employed by the shogun Tokugawa Iemitsu, who is the target of assassination attempts that aim to hand power over to his younger brother Tadanaga.
After defeat in the Battle of Skigahara, Yukimura Sanada and his Ten Braves scatter across the country to spy in order to be prepared for the final battle at Osaka Castle, trying to bring an end to the fighting by revealing the secret will of Toyotomi Hideyoshi, if they can get their hands on it!
