Recca Hanabishi is the son of a fireworks maker, and a ninja. Or at least, he thinks he is! Since he was young, he's always felt a deep connection to those shadowy warriors from the past. But when the past comes calling, Recca's in for a fiery awakening.

Gathering at a secret mansion, Kage Hoshi, or rather Kagero, keeps her promise to reveal everything to Recca. She tells the story of his birth, long, long ago.

Unable to accept his team's "easy" win, Recca challenges the leader of Team Kuu, Kukai, to a final showdown to determine everything. But Kukai's not the saint he's described as.