Ninja Slayer Kills In the cyberpunk metropolis of Neo Saitama, Kenji Fujikido is an average salaryman whose wife and children are suddenly assassinated. Tracking the murder back to a ninja, Fujikido trains to seek vengeance on those who murdered his family - but ultimately on every ninja on the planet. On his blood-paved path of revenge, Ninja Slayer will chop and kick through an army of cyber-enhanced karate users atop moving trains and throughout the polluted, neon-lit backstreests of Neo-Saitama, and even find time to enjoy some sushi along the way. The non-stop thrills and action will rip your heart out of your chest and show it to you before you explode with excitement-which is just what happens to one of Ninja Slayer"s opponents.