Devil Breathing

(Non-canon)

**Devil Breathing** (鬼 (おに) の呼 (こ) 吸 (きゅう) , *Oni no kokyū*?) is a breathing style that is distantly derived from Moon Breathing. It mimics the brute strength and mystical abilities of a demon and replicates it with the user's techniques, movements and abilities. Most, if not all, known techniques involve the usage of two separate swordsmanship styles and supernatural abilities that demons may only do, thus making this an impractical breathing style to be used by normal humans.

This breathing style is said to be a myth and so is its creator, because the person who made this breathing style is said to be a *cambion*, a term used for individuals who are the offspring of a pure-blooded human and full-fledged demon. And nobody in the Demon Slayer Corps let alone the Demons has ever found a single cambion in their lives.

## Known Techniques

### Unsheathed

* **First Form: Jaw Breaker** - The user swings their blade upward in an arc similar to **Flame Breathing's Second Form: Rising Scorching Sun**. This is often done with a jump to follow the opponent into the air.
* **Second Form: Skull Crusher** - The user slashes downward in a falling motion akin to that of **Water Breathing's Eighth Form: Waterfall Basin**.
* **Third Form: Stinger** - The user dashes forward at high speeds and thrusts their blade forward with great force. The technique itself is reminiscent to **Insect Breathing's Dance of the Bee Sting: True Flutter**.
* **Fourth Form: Acupuncture** - The user unleashes a swift flurry of thrusts at their opponent in rapid succession.
* **Fifth Form: Circle of Hell** - The user throws their sword forward like a boomerang, rapidly spinning at blistering speeds which can cut anyone into gore if they ever get caught into it. This technique is also useful for decapitating demons from a distance.
* **Sixth Form: Ring of Fire** - The user spins their sword at propeller speeds in a counterclockwise motion, launching them into the air. Then followed up with a rapid clockwise spin at high speeds, shredding the victim with the sword.
	+ **Wheel of Misfortune** - A combination of Fifth and Sixth Form; The user throws the sword forward in an upward yet spinning motion, pulling the victims toward them as they are getting cut down into pieces.
* **Seventh Form: Death Rave** - The user performs a four-combo attack that slices the enemy's limbs and head in quick succession. This is most often used while in the air.
* **Eighth Form: Blood Crescent Moon** - The user holds their sword in reverse grip then releases a powerful shockwave slash forward at high speeds. It can be performed one or more times.
* **Ninth Form: Dance Macabre** - The user dashes forth and delivers a series of slashes followed up with a barraging thrust and finishes it off with a three consecutive strikes with the last swing decapitating the target.
* **Tenth Form: Infernal Hellfire** - The user unleashes an ravaging burst of long-ranged and violent slashes that sweeps the entire environment before finally plunging the sword into the ground and holding it as if it's a cane, creating a gigantic explosion that destroys nearby opponents into nothing.

### Sheathed

* **Rising Slash** - The user swiftly unsheathes the blade and swings it upward. This is often done with a jump to follow the opponent into the air.
* **Aerial Cleave** - The user falls down and unsheathes the sword to deliver a merciless downward cut.
* **Soul Eater** - The user dashes forward at high speed while relentlessly slashing anything along the way before unsheathing the blade for a 360° cut.
* **Torturous Evisceration** - The user swiftly draws their sword out and delivers a barrage of slashes in front of them.
* **Judgement Cut** - The user dashes backward and unleashes a vortex of spatial slashes on the opponent by swiftly unsheathing then sheathing the blade at imperceptible speeds. It can be done numerous times.
* **Void Slash** - The user unsheathes their blade to deliver a 180° crescent-shaped slash in front, capable of decapitating more than one target.
* **Purge and Divide** - The user creates two spatial horizontal slashes before delivering an unsheathing horizontal slash. It can be used continuously while in the air.
* **Lunar Phase** - The user unsheathes their blade to perform a spinning sword attack at rapid speeds, with the body positioned in a lateral angle and the sword and sheath, in a medial position.
* **Drive** - The user unsheathes their blade for a X-shaped shockwave slash going forth at high speeds followed up with a horizontal shockwave slash flying forward at moderate speeds.
* **Maniacal Carnage** - The user unsheathes their sword and unleashes a series of sword slashes and scabbard strikes before finishing it off with an X-shaped cut.
* **Divine Punishment** - The user dashes forth and releases a hysteria of omnidirectional slashes that stops time entirely at blistering speeds. After sheathing the sword, time resumes and everything within the technique's range is immediately cut down into tiny pieces.