第 1 集: 藤木健二在家人遭忍者殺害後成為忍者殺手
2015年4月16日 播出
Seeking vengeance after nearly being slain by ninjas who also killed his wife and child, Fujikido Kenji merges with the spirit of Naraku Ninja to become Ninja Slayer, the ninja that kills ninjas. (Source: Ninja Slayer Wikia)