Stone Breathing (岩の呼吸,Iwa no kokyū?) is one of the five main Breathing Styles derived from the Sun Breathing. The Breathing Style was originally created by one of Yoriichi Tsugikuni's students who attempted to learn the Sun Breathing, but, due them to not being as innately powerful as Yoriichi, could not master it and was instead taught an alternative personalized breathing style by their teacher that focused specifically on their strengths and weaknesses, eventually branching out completely and becoming the Stone Breathing.
It is not known who the primary Cultivator of this Breathing Style is within the Demon Slayer Corps.
First Form: Serpentinite Bipolar (壱ノ型蛇紋岩・双極,Ichi no kata: Jamongan - Sōkyoku?) - Gyomei throws both the flail and axe towards his intended target and manipulates the chain by rotating it thus causing the axe and flail to also rotate in order to drill and grind right though his target.
Second Form: Upper Smash (弐ノ型天面砕き,Ni no Kata: Tenmen Kudaki?) - Gyomei throws both his axe and spiked flail for a pincer move before smashing down on the chain to cause the flail to then rebound and smash his target from afar.
Third Form: Stone Skin (参ノ型岩軀の膚,San no Kata: Ganku no Hadae?) - Himejima unleashes a series of slashes with his sword deflecting nearby attacks.
Fourth Form: Volcanic Rock - Rapid Conquest (肆ノ型流紋岩・速征,Shi no Kata: Ryūmongan - Sokusei?) - Gyomei manipulates both the flail and axe weapons at both ends of the chain by swinging the chain on both sides in order to strike his opponents using a two pronged wide ranged attack.
Fifth Form: Arcs of Justice (伍ノ型瓦輪刑部,Go no kata: Garin gyōbu?) - Gyomei utilizes a powerful barrage with his flail and axe, doing a great amount of damage. The axe is destined to hit first with the trajectory of the flail following from the opposite side and slamming into the opponent.