Weba skilled swordsman, he practices fire breathing, which has nine forms. All of them hit his enemies with fiery attacks, slashing and burning them at the same. Webfocusing all his fire into one final slash, rengoku took up his sword and went in for the ninth form: His fire took the form of a dragon as he charged toward akaza;. Webeach flame breathing form offers distinct techniques and strategies, adding depth to the combat style. Below, we break down all flame breathing forms in demon. Webrengoku is the ninth and last form of flame breathing used by kyojuro rengoku. Rengoku first debuted in the kimetsu no yaiba: Webrengoku may be a master of flame breathing, but what exactly does that mean? And why is it so powerful against demons? Here are rengoku's abilities in the. Webin this episode, rengoku encounters the first demon on the train, which he decapitates with a single strike of flame breathing first form: Rengoku (玖 (く) ノ 型 (かた) 煉 (れん) 獄 (ごく) , ku no kata: A devastating dashing slash that the. Webflame breathing is a ferocious technique that uses a mix of power and skill to decimate any enemy that might be standing in a person's way.