During the Warring States period, when the Gun'uo fought for power, Nobunaga Oda, Hideyoshi Toyotomi, and Ieyasu Tokugawa, who were later praised as the Three Heroes, put an end to the world of war and unified the country. Nobunaga Oda, from a powerful family in Owari Province, aims to establish a new unified government to replace the Muromachi shogun family, which has lost its authority. Toyotomi Hideyoshi, who started out as a vassal of Nobunaga and inherited Nobunaga's will, succeeded in unifying the world. Tokugawa Ieyasu, a vassal of Nobunaga and Hideyoshi, laid the foundations of a peaceful world that spanned 260 years as the most influential person after Hideyoshi's death. Thanks to the activities of these three warlords and the people surrounding them, Japan was able to undergo a major transformation from chaos to stability.