Hinokami Kagura

Hinokami Kagura (ヒノカミ) is a Breathing Style only known and taught by the Kamado Family, later revealed to be the first Breathing Style, Sun Breathing (の).

Description
The Hinokami Kagura is a Breathing Style that is passed on from father to son in every generation alongside the Hanafuda earrings. The Kamado family uses the Breathing Style within a ritual ceremony practiced every new year, where the Breathing Style user offers the Fire God a dance from sunset to sunrise to ward off threats and diseases.

The dance is composed of twelve segments repeated throughout the night until dawn. Tanjuro noted that the breathing technique utilized in this dance allows the user to never exhaust themselves no matter how long they move, making it such that they can seemingly dance forever. The last user is Tanjiro Kamado, who learned the Breathing Style from his father, Tanjuro Kamado. Other people can learn this technique if taught by a Kamado descendant.

The Hinokami Kagura is later revealed by Shinjuro Rengoku to be a legendary Breathing Style known as Sun Breathing (の), a legendary and forgotten Breathing Style and the first one to ever be created. All other Breathing Styles are derived from it as the result of Yoriichi Tsugikuni, the creator of Sun Breathing, modifying it to suit the individuals he taught.

Both the Hinokami Kagura and Sun Breathing are Breathing Styles that mimics the sun and replicates it with the user's movements, techniques and abilities. All techniques and forms are extremely varied and have no set pattern, making it the most versatile and effective against demons. Users of Sun Breathing visualize themselves seemingly manipulating solar flames when unleashing its techniques.

This Breathing Style also seems to be capable of hampering a demon's regeneration to an extent and cause pain akin to being burnt. Tanjiro also noted that using this style increases his overall power and speed, probably due to the fact that his body is more suited to Sun Breathing as opposed to Water Breathing.

Upon seeing Yoriichi perform the twelve forms through his ancestor's memories, Tanjiro realized that, despite being replicated with a surprising degree of accuracy for hundreds of years and his own mastery of Hinokami Kagura, Hinokami Kagura had unnecessary movements, such as different wrist angles, footwork and breathing rhythm, compared to the Sun Breathing directly performed by Yorrichi. Removing them enabled him to use the Breathing Style in its nigh-purest form.

Known Techniques
Sun Breathing was initially created with 12 techniques all connected to one another by Yoriichi Tsugikuni. Later upon meeting Muzan Kibutsuji, Yoriichi perfected his swordsmanship form, creating a new unnamed thirteenth form.


 * Dance - The user delivers a single high-powered vertical slash.
 * Dancing Flash - A modified version of Dance developed and utilized only by Tanjiro Kamado. The user infuses the Thunderclap and Flash technique of Thunder Breathing into the high-powered slash of Dance by inhaling huge amounts of oxygen, increasing the pumping of blood through the entire body, focusing it on the legs, and releasing it all to assault the target with a slash. This technique was capable of out-speeding Genya Shinazugawa, Nezuko Kamado, as well as the fleeing Hantengu. This technique is said to be slower than Zenitsu Agatsuma's Thunderclap and Flash.


 * Clear Blue Sky (の) - The user spins their body horizontally to deliver a 360° slash.


 * Raging Sun - The user unleashes two horizontal slashes to hit or defend from incoming attacks.


 * Burning Bones, Summer Sun - The user unleashes a large circular slash that defends from imminent frontal attacks.


 * Setting Sun Transformation - The user backflips into the air to deliver a powerful upended sword slash that aims to decapitate their target.


 * Solar Heat Haze - The user charges towards the target, unleashing a horizontal slash seemingly covered in haze that fails to land, but actually does hit the target.


 * Beneficent Radiance - The user spirals into the air and delivers a powerful slash that surrounds the enemy.


 * Sunflower Thrust - The user unleashes a single thrust attack with the point of the blade.


 * Dragon Sun Halo Head Dance (の・い) - The user unleashes a continuous fast and powerful sword attack that seemingly takes the form of a Japanese dragon made of solar flames. This technique is capable of decapitating multiple targets at once.


 * Fire Wheel - The user leaps behind the opponent and spins in the air downward, releasing a sword attack in a circular motion.


 * Fake Rainbow - The user performs high-speed twists and rotations, thus creating afterimages used mostly to evade attacks. The afterimages work most effectively on enemies with good vision.


 * Flame Dance - A two-combo strike which starts with a vertical slash and then a horizontal one right after.


 * Thirteenth Form (ノ) - The user continuously performs all twelve forms of Sun Breathing in repetitive succession to increase the accuracy and agility of his movements while reducing fatigue. This form was created solely for the purpose of killing Muzan Kibutsuji, since the repetition of all twelve forms aims to destroy Muzan's twelve vital organs (seven hearts and five brains) that move freely inside his body.

Game Exclusive Techniques

 * Cross Slash (り) - The user ignites their sword with solar flames and releases two arching flame slashes to their opponent, each individually making an "X" shaped slice. This is similar to Flame Dance


 * Scorching Rush (けり) - The user rushes forward with a flaming sword and performs a 5-move combo as follows: a low-ended strike from the left, a low-ended strike from the right that lifts the user off the ground briefly, a spinning wave attack, a powerful forwards upward slash and finally an overhead downward slash.


 * Phoenix Flash (り) - The user disappears in a flash of fire, before reappearing from fire in mid-air either upright, where they perform a massive overhead circular slash, or upside-down where they perform an angled 360° sword slash.

Demonstrations

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Trivia

 * The passing of Sun Breathing as a Kagura draws heavily from Shintō mythology. In Japanese folklore, famous tales in the "Nihon Shoki" and "Kojiki/Furukotofumi" explain that the Kagura ritual originates when Amaterasu, the goddess of the sun, retreated into a cave, plunging the world into darkness. In response, Ame-no-Uzume, the goddess of revelry and dawn, danced outside the cave to entice the sun goddess out. From these events, the Kagura was born, a ritualistic dance that honors Kami (Gods and ancestral spirits). Likewise, Sun Breathing was disguised as a Kagura and passed down as the Hinokami Kagura.
 * It is implied that the reason Flame Breathing (の) should never be referred to as Fire Breathing (の) is because its pronunciation is exactly the same  as Sun Breathing (の).
 * The kanji for "sun" has the same pronunciation as the kanji for "fire".
 * After Tanjiro had witnessed Yoriichi perform all thirteen Sun Breathing forms through Sumiyoshi’s memories, he noted his own current Hinokami Kagura forms contained wasted movements, then proceeding to try and fix those once he resumed battle, as such Tanjiro only starts naming his attacks as Sun Breathing thereafter, which showed that the Kagura moves weren’t as strong as they should be before Tanjiro actually saw Sun Breathing in its purest form.
 * Another god of fire in Japanese mythology is the Sanbō-Kōjin, sometimes referred to as the "Kamado-gami". Sanbō-Kōjin is sometimes identified as an incarnation of the demon-slaying Acala, and thus related to Vairocana (also called Dainichi Nyorai whose worship is related to sun-worship.
 * According to the second fanbook the Kamado family has preserved the Hinokami Kagura as a ceremonial practice all the way to present times, Tanjiro’s great-great-grandchildren, Sumihiko and Kanata, are practitioners of it.