Defiant Honor takes us to Osaka Castle the largest and most impregnable castle of Sengoku era. This add-on features the legendary warrior Sanada Yukimura serving Tokugawa Ieyasu’s archenemy Toyotomi clan who values honor above all else. As tensions brew between the Tokugawa and Toyotomi clans Sanada Yukimura prepares his men for imminent conflict against the Tokugawa’s forces by building a stronghold called the Sanada Maru on the outskirts of the Osaka Castle. With the castle fortified Tokugawa's forces were faced with a difficult and bloody challenge.