James Clavell’s novel Shōgun was about how English sailor John Blackthorne gets shipwrecked on the coast of Japan and gets involved in the daimyō Lord Yoshii Toranaga’s plans to rise through the ranks and become shōgun of the whole country. It’s loosely based on English sailor William Adams’ experience with Tokugawa Ieyasu, and was previously adapted for TV in the 1970s, and even for Broadway.