Ninja Slayer is on its way to become a media phenomenon in Japan, where there have been three manga series, several novels, an audio drama, and an upcoming anime series. 16 and up, ongoing. Shonen.

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 - initially on those who murdered his family, but ultimately on every ninja on the planet. He becomes the Ninja Slayer, a warrior obsessed with killing every last ninja to avenge his family. Ninja Slayer was originally released in segments on Twitter; this is the first full collection of this innovative new series.