When Hideyori Toyotomi accepts the Tokugawa clan's terms for the ceasefire, the Winter Siege of Osaka comes to an end. However, even the inner moat of the castle gets filled in despite not being one of the terms, pushing the Toyotomi clan further to the brink. It was clear to one and all that the last war of the Warring States Era could not be avoided. While everyone prepares for the final showdown, Nobuyuki Sanada decides to shoulder the pain of killing his brother, Yukimura. On the other hand, Yukimura tries to grasp the one chance of victory the Toyotomi clan has against all odds.