Toranaga is a fictional character from the historical novel "Shogun," written by James Clavell. Set in Japan during the early 17th century, Toranaga is a powerful daimyo, or feudal lord, who seeks to consolidate his power and navigate the complex political landscape of the time. His character is inspired by the real-life figure Tokugawa Ieyasu, who became the first shogun of the Tokugawa shogunate. In the story, Toranaga interacts with John Blackthorne, an English navigator who becomes embroiled in Japanese politics. Through their relationship, the novel explores themes of loyalty, honor, and the clash of cultures, highlighting the challenges faced by both characters in a rapidly changing world.