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 death that leads to the Battle of Sekigahara and the extermination of the Toyotomi clan; and the "Sanada" story, which tells a parallel story with Unification but has a more personal insight with the Sanada clan. Musou Attacks now have new finishing animations separate from their Ultimate Musou, but they no longer allow free-action for their durations. Enemy generals still use the older shockwave finishers, and are no longer fully invincible for their durations (they instead are granted Hyper Armor). Like previous games in the series, the setting and story of "Samurai Warriors 4" is centered on the Sengoku period