In an alternate 1600, Oda Nobunaga has ruled a unified Japan for ten years. Sensing that his life is nearing its end, he makes a bold declaration: the general who presents him with Japan's strongest warrior will inherit his power. The warlords whose dreams of conquest were crushed see a second chance, and each puts forward a champion to fight for the right to rule. Victory means dominance over the entire nation. Each fighter carries the ambitions of their patron general into an action fantasy clash to decide the mightiest martial artist in the land.