Webby repeating a set of words over and over, he is able to focus his mind and perform actions with incredible power, matching that of breathing styles. Webgenya can't do total concentration breathing, his body just isn't built for it. Yes, he could learn the moves (and we know he knows some moves, he does have a. Webin the anime and manga, we have never seen genya use a breathing style, yet, he manages to become a demon slayer. Well, there are 2 major reasons for it, the. Webgenya’s abilities defeat demons even without breathing techniques. The strongest hashira of the demon slayer corps, gyomei himejima, personally. Unfortunately for genya, he never masters any particular breathing styles or total. Webtherefore, genya spent his time mastering the use of a gun while battling demons. Both the anime and the manga have not specified why he cannot use. Webthe demon slayer universe introduces striking elemental effects, such as tanjiro conjuring water through water breathing, zenitsu's lightning manipulation in. Webgenya says that he can't learn total concentration breathing. Similarly, rengoku's younger brother, despite training, couldn't do it either, his blade never changed color.
