(W/A/CA) Kotaro Sekine. More than a thousand years ago* ninjas belonging to the Soukai Syndicate committed a forbidden form of hara-kiri* and stored their souls in the ancient Kinkaku Temple. Now* in the dystopia metropolis of Neo-Saitama* these sinister souls have been resurrected* and wreak havoc across Japan. Average salaryman Kenji Fukijido's wife and children are killed in ninja crossfire. After a near brush with his own death* Kenji becomes the Ninja Slayer a warrior obsessed with killing every last ninja to avenge his family.