Arson

His very name hints to his Katon-jitsu or inferno style technique, a pyrokinesis punch that burns opponents to death via the supernatural phenomenon of spontaneous combustion. With his formidable jitsu and karate, he overpowers villainous yakuza gangs causing a scene in the microcosmos of the underworld food chain. Despite reigning on the top of the absolute pyramid hierarchy of ninja, yakuza and ordinary citizens, to his sorrow, the fearful predator Ninja Slayer exists in a class by himself.

(Source: Tokyo Otaku Mode)