Known as "Demon Warriors" and described as absolute darkness, Oni only harms those who would harm others. They use their enhanced strength and expert skills in Japanese martial arts to defeat opponents in combat. A silver arrowhead lodged into the chest cavity will kill an Oni. In their quest, these warriors can phase through solid matter as well as supernatural barriers (such as mountain ash).
While Oni cannot be defeated in battle, they are restricted to attacking at night. Their weapon of choice is a form of a Japanese sword. Oni seeks to identify and destroy those possessed by a Nogitsune at any cost. They detect Nogitsune through a suspect's eyes. Those not possessed receive a "Jiko" mark behind their left ear
At the heart of each Oni is a Nemeton Firefly. Oni can be summoned by a Kitsune sacrificing their tails.
