Due to some unlikely events, Saburou is flung back in time to the Sengoku Era. In the past, he meets a young, but sickly Oda Nobunaga, one of Japan's greatest warlords. Unable to shake Saburou's uncanny resemblance to himself, Nobunaga asks Saburou to take his place as warlord. Equipped with knowledge from the modern era, will Saburou be able to unite Japan?