Book One Kitsunichi Shimitzu is a ronin, a samurai who has become masterless. After twelve years of absence, he returns to his native lands and discovers that his master's son is a weak man. Bandits terrorize the population, and strange rumors of a powerful enemy spread. Torn between past mistakes and a chance to redeem himself, Kitsunichi will have to fight for his life.

Book Two We've all made mistakes in the past we wish we hadn't, but we can't change what happened. Kitsunichi Shimitzu, too, will have to face his failures as a rebellion flares up, one that not even the Imperial army seems able to stop.

Book Three The Daimyo's palace is the safest area in the region, but even there, intrigue and suspicion hover around Kitsunichi Shimitzu and his sidekick Yamanouchi Karamatsuki. The question hangs in the air: has the rebellion infected even the Empire's most loyal servants? Meanwhile, our Kitsunichi Shimitzu's son is increasingly embroiled in the rebellion.

Book Four The first clash with the rebels resulted in a victory for Kitsunichi Shimitzu and Yamanouchi Karamatsuki. However, the friends' momentary triumph will not staunch the flow of blood. The violence will continue, demanding the ultimate sacrifice from loyal warriors. Meanwhile, as the political situation in the district becomes increasingly dangerous, Kitsunichi risks death-at the hands of his own son!

Book Five The rebellion threatens to destroy the power of the Daimyo. In addition, it is rumored that the Emperor himself is mobilizing his forces. No one knows who the leader of the revolution is, only his name: The Firefly King. Kitsunichi, still suffering from wounds he suffered at the hands of his son, must now face an assault on the Daimyo's Palace.

Book Six Last issue! The confrontation between father and son is inevitable! However, not even the gods know who will triumph and who will rest forever. It is said that sometimes life is harder than any punishment, and Kitsunichi is about to find out the truth of that statement! Will the Firefly King succeed in ousting the Emperor and plunging Japan into chaos?