This is an adaptation of the Mirage of Blaze novel, and so far seems to follow the original source material closely.

The complex plot incorporates a large number of elements - including romantic melodrama, historical politics and supernatural fantasy. Japanese history predominates the heavily structured story-line, which mainly involves the continued aggression between power-wielding guardians ('possessors'), and the denizens of a 'feudal underworld'- a group of restless souls belonging to long-dead samurai from the Sengoku era who are attempting to re-ignite those age-old wars in present-day Japan.