The Iga clan and the Kouga clan have been sworn enemies for more than four hundred years. Only the Hanzo Hattori truce has kept the two families from all-out war. Now, under the order of Shogun Ieyasu Tokugawa, the truce has finally been dissolved. Ten ninja from each clan must fight to the death in order to determine who will be the next Tokugawa Shogun. The surviving clan will rule for the next thousand years. But not all the clan members are in agreement. Oboro of the Iga clan and Gennosuke of the Kouga clan have fallen deeply in love. Now these star-crossed lovers have been pitted against each other. Can their romance conquer a centuries old rivalry? Or is their love destined to end in death?
In the gritty, futuristic city of NeoSaitama, the streets run slick with acid rain and blood while an army of cyberneticsclad ninjas run amok under the menacing rule of the Soukai Syndicate. As incessant strife wrought by a ninja turf war takes the lives of all citizens who end up in the crossfire, one can only hope to end the day without getting a suriken to the skull. But in these dark, tragic times, a spirit of vengeance rises to kill all wicked ninja who terrorize NeoSaitama. This crimson avenger is Ninja Slayer, and he will not rest until all ninja have been slaughtered at his hands.
The horn growing from Raizo's forehead is proof that he's the lost illegitimate son of the oncemighty Katana family. Now a band of loyal and lovely female ninjas devises a scheme to elevate their newfound master to greatness. But does this shy outcast have what it takes to rule the kingdom and deal with a bevy of beautiful ninja girls? Includes special extras after the story!
Since ancient times, the ninja and the yakuza have been at war, spilling blood around the world as empires rise and fall. So when, in the modern age, Shinoha, a ninja, meets Kiwami, a gangster following the path of the yakuza-the gokudo-and discovers they have common interests, the obvious assumption is that nothing good can come of it. But can it be that one burgeoning bromance will shake up a 300-year grudge? Who will win the struggle for real ultimate power?