Sixteenth-century Japan. In the aftermath of Lord Oda Nobunaga's downfall, Japan plunged into a maelstrom of despair and turmoil. The Owari Province has succumbed to the unyielding grasp of Lord Hideki. Lord Hideki has made a bargain with the demon lords, granting him unspeakable power, as Japan itself will belong to them. Only the legendary Yasuke and his daughter, Amori, has the will to turn the tides to oppose Lord Hideki and the demon dark forces.