Seppuku the head could, both metaphorically and literally, rest in its owner's hands. Those who did not belong to the samurai caste were never ordered or expected to carry out seppuku. Samurai generally could carry out the act only with permission. Sometimes a "daimyō" was called upon to perform seppuku as the basis of a peace agreement. This weakened the defeated clan so that resistance effectively ceased. Toyotomi Hideyoshi used an enemy's suicide in this way on several occasions, the most dramatic of which effectively ended a dynasty of "daimyōs". When the Hōjō were defeated at Odawara in 1590, Hideyoshi insisted
Samurai Warriors 4 and Tadakatsu Honda, Mitsunari Ishida, Kanetsugu Naoe, Kunoichi, Ina, and Ieyasu Tokugawa in supporting roles. The ending of the special, which features cameos by Kagekatsu Uesugi and Nobunaga Oda, teases a full anime adaptation, simply titled "Samurai Warriors", again directed by Kojin Ochi and animated by TYO Animations, which aired between January 11, 2015 and March 29, 2015 for 12 episodes in total. It goes beyond the Siege of Ueda and covers the entire timeline of the game, ending on the Siege of Osaka, though it notably focuses on the Sanada clan. More characters are thus featured in the anime,