Throughout feudal Japan's history, there existed a formidable warrior known as the Demon King who commanded a group of demons called the Kyouma. The only way to subdue them was by harnessing the skills of ten warriors who had successfully sealed the Demon King. However, Lord Shindigan, a commanding Kyouma leader, now seeks to liberate the Demon King. The ten warriors' reincarnations must unite to rescue the planet from imminent doom.