Kamui no Ken

In feudal Japan, young Jiro witnesses the murder of his mother and sister, and is wrongly accused of the crime. He flees his village and encounters Tenkai, a priest who tasks him with killing a rogue ninja named Tarouza. After completing the mission, Jiro is trained to become a master assassin. Years later, he learns he was orphaned and that Tarouza was his real father, who had been working for Tenkai before abandoning his mission. Jiro discovers the Shogunate plans to use Captain Kidd's lost treasure to isolate Japan. Seeking revenge against Tenkai, Jiro, along with the female ninja Oyuki and a slave named Sam, travels to Russia and America to find the treasure.