Moon Breathing

Breath of the Moon (の) is a Breath Style derived from the Breath of the Sun used by Upper Moon One, Kokushibo, who was one of the first Demon Slayers who utilized breathing techniques. The techique allows the user to create many "chaotic blades" when slashing that vary in length and size. It is known that Kokushibo continued to develop and add techniques to the Breath Style over the centuries as an immortal demon. At this point in the story, it is the only known Breath Style to possess at least 16 different techniques, easily surpassing the other Breath Styles, none of which have more than 11 techniques. This, however, does include the Dance of the Fire God, which, at the moment, has 13 techniques.

Later it was revealed that like all of the originals breath styles,the Breath of the Moon also branched out of the Breath of the Sun,When its creator Michikatsu Tsugikuni attempted to learn the Breath of the Sun from his Twin brother Yoriichi Tsugikuni,but due to not being as innately talented as his brother/teacher he could not use or master the breath style as he could,As such Yoriichi instead alternated his teaching method and ended up training Michikatsu in a altered breath style that specifically focused on his strengths and weaknesses,eventually branching out and developing into the Breath of the Moon.

Attacks

 * First Form: Dark Moon - Evening Palace (ノ ・の) - Kokushibo draws his sword and slashes swiftly in a single motion; like with all Breath of the Moon techniques, numerous chaotic crescent shaped blades originate from the slash. This technique resembles Iaido.
 * Second Form: Pearl Flowers Moongazing (の ノ)
 * Third Form: Loathsome Moon - Chains (ノ ・り) - Kokushibo swings his sword rapidly in two crescent slashes, from which a storm of smaller crescents spread. This technique causes huge destruction in a small area.
 * Fourth Form:
 * Fifth Form: Moon Spirit Calamitous Eddy (ノ) - Kokushibo makes multiple curved slashes layered over one another, resembling a rising vortex. Numerous chaotic blades originate from these slashes. Kokushibo performed this attack without swinging his blade.
 * Sixth Form: Perpetual Night, Lonely Moon - Incessant (ノ ・) - Kokushibo releases a wild storm of slashes in multiple directions. This technique was powerful enough to not only slice up multiple pillars around him but also overwhelm the Wind Pillar Sanemi Shinazugawa.
 * Seventh Form: Mirror of Misfortune - Moonlit (ノ ・え) - Kokushibo swings his sword in a powerful frontal slash that then creates a multi directional frontal assault, powerful enough to create several deep gouges in the ground and push back at least two pillars.
 * Eighth Form: Moon-Dragon Ringtail (ノ) - Kokushibo Uses a direct frontal attack that creates single gigantic slash.
 * Ninth Form: Waning Moonswaths (ノ り・) - Kokushibo creates a seemingly endless stream of slashes, capable of cutting down his intended target from long range.
 * Tenth Form: Drilling Slashes - Moon Through Bamboo Leaves (ノ ・) - Kokushibo creates a triple-layered slash twister, capable of mowing down his targets into three clean pieces.
 * Eleventh Form:
 * Twelfth Form:
 * Thirteenth Form:
 * Fourteenth Form: Catastrophe - Tenman Crescent Moon (ノ・) - Kokushibo swings his sword and creates a chaotic vortex of powerful omni-directional slashes that destroys whatever is caught up within its attack radius.
 * Fifteenth Form:
 * Sixteenth Form: Moonbow - Half-Broken Moon (ノ・れ) - Kokushibo swings his sword in a downward slash, resulting in a powerful sixfold slash crashing down on his opponents; the attack itself is powerful enough to create several miniature craters where the slashes have landed.