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The evil wizard Donatus wants ultimate power and will do bad things to get it; someone's got to stop him. Fortunately our heroes are ready. All of them have big scores to settle with Donatus: Migiwa the dragon rider has had his father killed and his sister Kira (who is also Migiwa's lover and bride) kidnapped by Donatus; Lythtis's and Solest's dad has been killed by Donatus too, and Solest has been magically turned into a baby dragon; and Parmis... well, let's just say that they have their reasons to go after Donatus, too.
Suddenly, a mysterious enemy appears in the collapsed world! The boy gains the power of Sengoku warrior Oda Nobunaga and confronts a mighty enemy with his friends!
A clan of men and women with occult capacities were in the service of most powerful and have occupied themselves, since Antiquity, with the most difficult missions. They have now almost all disappeared. In Japan of today, a war rages between the survivors of this clan and the daughter of their ex-leader.