Webthe strongest hashira of the demon slayer corps, gyomei himejima, personally trains genya to help him compensate for his inability to use breathing. Webgenya shinazugawa has a unique fighting style using demonic powers and buddhist chants, setting him apart from other demon slayers. Genya's rise in the demon. Webfor the most part, genya gets an enhanced physical constitution (which makes up for his inability to use breathing styles) along with potent regeneration. Webi would really like to know if any explanation is given about why he can't use breathing styles. Webbut it is revealed in episode 6 of season 3 (chapter 115 in the manga) that genya is, in fact, incapable of performing any breathing techniques. Web10 genya can’t use the breaths like the other demon slayers. Other demon slayers can use the breaths, but genya cannot. Breathing styles are taught in. Webwhile genya's weapon of choice is a shotgun, he does have the original nichirin blade he received from the final selection, but he is unable to use breathing. Webgenya shinazugawa is a tough and determined fighter who had a troubled past and suffered abuse from his family. He developed a unique fighting style that. Webit was revealed that genya could not use breathing styles. This is relevant as to why he did not use a nichirin sword, as without any breathing style, there would be.