The first year of Genna. Tokugawa conquered Toyotomi in the summer. The head of the defeated general, Yukimura Sanada, was beheaded by Tokugawa's covert, Hanzo Hattori. However, Yukimura, who has only a neck, is revived as a demon, Ajaraou. He summoned his subordinate Sanada Ten Braves to Edo Castle and murdered the Tokugawa shogunate. However, in the mountains far away, a superhuman group, the elder of the Kowloon clan, Mugen Daigon, sensed an incident in this world. Daigon summons his son Miroku and sends his spirit into Edo Castle. There, Miroku "saw" the violence of the demon Sanada. In ancient times, after admitting the power of the "dragon" that flew from space behind the magical power of Yukimura, Daigon and Maitreya decided to fight in the future. The curtain of a terrifying magical battle opens here now...