Breath of Water (水の呼吸,Mizu no kokyū?): Is one of the five main Breath Styles directly derived from the Breath of Sun. The primary Cultivator for the Demon Slaying Corps is Sakonji Urokodaki. The 11th Style is an original attack created by Giyu Tomioka.
First Style: Water Surface Slice (壱ノ型水面斬り,Ichi no kata: Minamo giri?) - The swordsman generates enough momentum to create a powerful single concentrated slash.
Second Style: Water Wheel (弐ノ型水車,Ni no kata: Mizu guruma?) - The swordsman leaps and spins in the air while releasing an flowing attack in a circular motion.
Third Style: Dance of the Rapid Current (参ノ型流流舞い,San no kata: Ryūryū mai?) - The swordsman swings his blade at his opponent in a way that mimics the movement of waves on the surface of water.
Fourth Style: Striking Tide (肆ノ型打ち潮,Shi no kata: Uchishio?) - The swordsman makes multiple consecutive slashes while twisting their body in a flowing fashion similar to a harsh tide.
Fifth Style: The Merciful Rain of a Dry Day (伍ノ型干天の慈雨,Go no kata: Kanten no jiu?) - A "sword strike of kindness" that kills the target with little to no pain. Used when the enemy surrenders.
Sixth Style: Twisting Whirpool (陸ノ型 ねじれ渦,Roku no kata: Nejire uzu?) - The swordsman fiercely twists his upper and lower body, creating a whirlpool that cuts anything caught in it.
Seventh Style: Piercing Rain Drop (漆ノ型雫波紋突き,Shichi no kata : Shizuku wa Mondzuki?) A fast and accurate stab. The fastest Breath of Water technique.
Eight Style: Waterfall Jar (捌ノ型滝壷,Hachi no kata: Takitsubo?) - The swordsman cuts the target vertically.
Ninth Style: Water Splash (玖ノ型水流飛沫,Ku no kata: Suiryū shibuki?) - Minimizes the landing time and surface needed when landing, allowing the user to move without limits. Ideal when fighting in a place with no solid foothold.
Tenth Style: The Dragon of Change (拾ノ型生生流転,Jū no kata: Seisei ruten?) - A continuous attack that increases in power with each rotation, creating a strong slash.
Eleventh Style: Lull (拾壱ノ型凪,Jū Ichi no kata: Nagi?) - Created by the Water Pillar, Tomioka Giyu, the swordsman ceases any body movements and engages a skill that disables and nullifies incoming attacks. However, its effectiveness is limited as fast and numerous attacks can break through.