The Demon Slayer Verse.

In Taishō era Japan, a secret organization known as the “Demon Slayer Corps” has waged a war against demons for centuries. Demons are former humans who possess supernatural abilities such as enhanced strength, rapid regeneration, and unique powers referred to as “Blood Demon Arts”. Demons can only be killed if they are exposed to direct sunlight, decapitated with weapons crafted from an alloy called Nichirin, or injected with a poison extracted from wisteria flowers.

In contrast, the Demon Slayers are entirely human but employ specialized elemental breathing techniques known as “Breathing Styles”. These techniques grant them superhuman strength, heightened abilities, and increased resilience that enable them to fight demons effectively. The most formidable Demon Slayers are known as the “Hashira” and gain this title through multiple advancements in the Corps’ ranks, culminating in killing fifty demons at the highest level or a member of the Twelve Kizuki.

Breathing Styles are swordsmanship styles that makes use of an esoteric breathing technique known as Total Concentration Breathing practiced and taught by members of the Demon Slayer Corps and are used in combat by Demon Slayers (later passed on as traditional dances post-time skip).

All known Breathing Styles currently taught within the Demon Slayer Corps are derived from Sun Breathing, the first one ever created. The majority of known Breathing Styles mimic a certain element of nature (i.e. flame, water and wind) and replicates it with the user’s movements, techniques and abilities. The weapon attacks of Demon Slayers who use Breathing Styles are also longer ranged, possibly due to shockwaves or air pressure generated from their weapon itself when swinging and striking. New Breathing Styles are always being created to suit a Demon Slayer’s combat needs, which results in new weapons being utilized in demon hunting (i.e. flails and whips). Such Breathing Styles embody a bigger variety of concepts, like animals, plants and emotions (i.e. serpents, flowers and love). When utilizing a Breathing Style, users automatically visualize themselves manipulating the subject behind their style, making it seem as if they were using magic, though those that are less apt and proficient in their style will visualize less of it than one who is.

The five fundamental Breathing Styles (Flame, Water, Wind, Stone and Thunder) originate from Sun Breathing, the first Breathing Style. Subsequently, numerous other Breathing Styles evolved as branches from these five core styles-

Hinokami Kagura (ヒノカミ神楽かぐら Hinokami Kagura?, lit. “Dance of the Fire God”) is a Breathing Style only known and taught by the Kamado Family, later revealed to be the first Breathing Style, Sun Breathing (日ひの呼こ吸きゅう Hi no kokyū?) Which was created by the creator of Breathing styles: Yoriichi Tsugikuni.

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 (円えん舞ぶ Enbu?)[5] - The user performs a singular downwards vertical slash in an arcing motion.

Clear Blue Sky (碧へき羅らの天てん Heki-ra no Ten?)[7] - The user spins and twists their upper body in a circular motion, releasing a 360° slash.

Raging Sun (烈れつ日じつ紅こう鏡きょう Retsujitsu Kōkyō?)[8] - The user unleashes two consecutive horizontal arcing slashes around themselves to strike incoming attacks.

Burning Bones, Summer Sun (灼しゃっ骨こつ炎えん陽よう Shakkotsu En’yō?)[9] - The user performs a singular slash utilizing a spiraling motion which extends in front of themselves to defend from imminent frontal attacks.

Setting Sun Transformation (斜しゃ陽よう転てん身しん Shayō Tenshin?)[10] - The user backflips into the air before performing a singular horizontal slash which aims to decapitate the target.

Solar Heat Haze (飛ひ輪りん陽かげ炎ろう Hirin Kagerō?)[11] - The user rushes forth, now attempting to deliver a strike seemingly enveloped in a heat-haze, masking the true length and location of the blade to deliver an unexpected strike.

Beneficent Radiance (輝き輝き恩おん光こう Kiki Onkō?)[12] - The user spirals into the air whilst performing a swirling slash upwards to strike the target.

Sunflower Thrust (陽よう華か突とつ Yōkatotsu?)[13][14] - The user performs a singular thrust utilizing the tip of their blade to strike the target.

Sun Halo Dragon Head Dance (日にち暈うんの龍りゅう・頭かぶり舞まい Nichiun no Ryū Kaburimai?)[15] - The user assumes a high stance, before unleashing a number of consecutive slashes in a fluid motion in the form of a Japanese dragon made of solar flames. This technique is capable of decapitating multiple targets at once.

Fire Wheel (火か車しゃ Kasha?)[16] - The user flips into the air behind the opponent before unleashing a singular vertical slash in a circular motion to swiftly cut the target in half.

Fake Rainbow (幻げん日にち虹こう Gen’nichi Kō?)[17] - The user performs high-speed twists and rotations, creating afterimages that are primarily used for evading attacks. These afterimages are particularly effective against enemies with sharp vision.[18]

Flame Dance (炎えん舞ぶ Enbu?)[19] - A two-strike combo which starts with a downward vertical slash leading into a horizontal slash right after.

Thirteenth Form (拾じゅう参さんノ型かた Jū San no kata?)[20] - The user continuously performs all twelve forms of Sun Breathing in repetitive succession to increase the accuracy and agility of its movements, and attacks. 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.

Moon Breathing (月つきの呼こ吸きゅう Tsuki no kokyū?) is a Breathing Style derived from Sun Breathing.

Moon Breathing is a Breathing Style that mimics the Moon, specifically the crescent shape of the moon as it waxes and wanes and the erratic behavior of passing moonlight, and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques and forms are standard yet varied swordsmanship techniques that focus on swift and powerful strikes which blends both offense and defense. Most sword slashes performed follow the shape and pattern of crescent moons.

All Moon Breathing Techniques:

First Form: Dark Moon, Evening Palace (壱いちノ型かた　闇やみ月づき・宵よいの宮みや Ichi no kata: Yamidzuki - Yoi no Miya?)[2] - Kokushibo draws his katana and performs a singular horizontal slash following a crescent shape, creating numerous chaotic crescent blades along its path, before sheathing it back into his scabbard. This technique is extremely reminiscent of Iaijutsu.

Second Form: Pearl Flower Moongazing (弐にの型かた　珠しゅ華かノ弄ろう月げつ Ni no kata: Shuka no Rōgetsu?)[3] - Kokushibo performs three crescent-shaped slashes while releasing a multitude of crescent moon blades along with them.

Third Form: Loathsome Moon, Chains (参さんノ型かた　厭えん忌き月づき・銷つがり San no kata: Enkidzuki - Tsugari?)[4] - Kokushibo performs two extremely broad crescent-shaped slashes directly in front of him, from which a storm of smaller crescent moon blades are released.

Fifth Form: Moon Spirit Calamitous Eddy (伍ごノ型かた 月げっ魄ぱく災さい渦か Go no kata: Geppaku Saika?)[5] - Kokushibo creates multiple long and curved slashes layered over one another, essentially creating a vortex of crescent moon blades. As stated by Sanemi Shinazugawa, this technique was performed without Kokushibo swinging his katana.

Sixth Form: Perpetual Night, Lonely Moon - Incessant (陸ろくノ型かた　常とこ夜よ孤こ月げつ・無む間けん Roku no kata: Tokoyo Kogetsu - Muken?)[6] - Kokushibo rapidly performs a multitude of curved slashes several meters in front of him that releases a wild barrage of crescent moon blades capable of slicing up the surroundings.

Seventh Form: Mirror of Misfortune, Moonlit (漆しちノ型かた　厄やっ鏡きょう・月づき映ばえ Shichi no kata: Yakkyō - Dzukibae?)[7] - Using his altered katana, Kokushibo performs a frontal crescent-shaped slash that unleashes numerous straight and curved slashes that expand outward.

Eighth Form: Moon-Dragon Ringtail (捌はちノ型かた　月げつ龍りゆう輪りん尾び Hachi no kata: Getsuryū Rinbi?)[8] - Using his altered katana, Kokushibo performs a massive long-ranged curved slash that leaves dozens of crescent moon blades along its path.

Ninth Form: Waning Moonswaths (玖くノ型かた　降くだり月づき・連れん面めん Ku no kata: Kudaridzuki - Renmen?)[9] - Using his altered katana, Kokushibo performs multiple curved slashes, all in close proximity, that leave numerous crescent moon blades along its path.

Tenth Form: Drilling Slashes, Moon Through Bamboo Leaves (拾じゅうノ型かた　穿せん面めん斬ざん・蘿ら月げつ Jū no kata: Senmenzan - Ragetsu?)[10] - Using his altered katana, Kokushibo creates three rotating circular saw-like slashes with crescent moon blades following their path.

Fourteenth Form: Catastrophe, Tenman Crescent Moon (拾じゅう肆しノ型かた　兇きょう変へん・天てん満まん繊せん月げつ Jū Shi no kata: Kyōhen - Tenman Sengetsu?)[11] - Using his altered katana, Kokushibo performs a multitude of curved slashes which expand outward in every direction that incrementally grow in size, essentially creating an omni-directional vortex of crescent moon blades that surrounds him.

Sixteenth Form: Moonbow, Half Moon (拾じゅう陸ろくノ型かた　月虹げっこう・片かた割われ月づき Jū Roku no kata: Gekkō - Katawaredzuki?)[12] - Using his altered katana, Kokushibo swings upward, sending six curved slashes crashing down several meters in front of him, powerful enough to leave craters in their wake.

Water Breathing (水みずの呼こ吸きゅう Mizu no kokyū?) is one of the five main Breathing Styles directly derived from Sun Breathing. Water Breathing is a Breathing Style that mimics water, specifically the flow, flexibility and adaptability of the liquid and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques involve the user bending their body, arm and weapon in a fluid motion to match the movements of rushing or flowing water. Users also visualize themselves seemingly creating and manipulating water when unleashing its techniques.

All Water breathing Techniques:

First Form: Water Surface Slash (壱いちノ型かた　水みな面も斬ぎり Ichi no kata: Minamo Giri?)[5] - The user releases a singular, horizontal slash aiming to decapitate their target.

Second Form: Water Wheel (弐にノ型かた　水みず車ぐるま Ni no kata: Mizu Guruma?)[6] - The user leaps forward into the air and performs a front flip, releasing a singular vertical slash in a circular motion.

Third Form: Flowing Dance (参さんノ型かた　流りゅう流りゅう舞まい San no kata: Ryūryū Mai?)[8] - The user swings and bends their blade in a winding motion along with their body and dances in a flowing pattern, slicing everything in its path.

Fourth Form: Striking Tide (肆しノ型かた　打うち潮しお Shi no kata: Uchishio?)[9] - The user performs a multitude of slashes in a flowing fashion to release multiple consecutive slashes.

Fifth Form: Blessed Rain After the Drought (伍ごノ型かた　干かん天てんの慈じ雨う Go no kata: Kanten no Jiu?)[11] - The user changes the grip on their sword and decapitates the opponent in a single flowing strike that causes little to no pain. It is a “sword strike of kindness” used when the enemy willingly surrenders.

Sixth Form: Whirlpool (陸ろくノ型かた　ねじれ渦うず Roku no kata: Nejire Uzu?)[12] - The user twists their body, using their blade to perform a fierce whirling motion which generates a whirlpool of air to shred apart anything caught within its current like a giant sharp blade. Its effect and efficiency is enhanced underwater, where the user can draw water around their weapon to create whirling currents that enhance their slashes.

Seventh Form: Drop Ripple Thrust (漆しちノ型かた　雫しずく波は紋もん突づき Shichi no kata: Shizuku Hamon Tsuki?)[14] - The user performs a precise, fast and accurate thrust with their blade.

Drop Ripple Thrust, Curve (雫しずく波は紋もん突づき・曲きょく Shizuku Hamon Tsuki - Kyoku?)[15] - A modified strike that hits from a specific angle corresponding to the sword’s structure which nearly nullifies the impact and momentum of a moving object.

Eighth Form: Waterfall Basin (捌はちノ型かた　滝たき壼つぼ Hachi no kata: Takitsubo?)[16] - The user cuts the target vertically in a flowing motion which is most effective when they are falling downward.

Ninth Form: Splashing Water Flow, Turbulent (玖くノ型かた　水すい流りゅう飛沫しぶき・乱らん Ku no kata: Suiryū Shibuki - Ran?)[17] - The user changes their footwork in a way that 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 Form: Constant Flux (拾じゅうノ型かた　生せい生せい流る転てん Jū no kata: Seisei Ruten?)[18] - The user charges toward the target whilst performing a continuous flowing attack with their blade which increases in strength and speed over time using momentum.

Eleventh Form: Dead Calm (拾じゅう壱いちノ型かた　凪なぎ Jū Ichi no kata: Nagi?)[19] - The personal creation of the current Water Hashira, Giyu Tomioka. The user ceases all body movements and enters a state of complete tranquility, deflecting, blocking and cutting any incoming attacks with imperceptible speed with their blade. However, its effectiveness is limited as fast and numerous attacks can break through.

Flame Breathing (炎ほのおの呼こ吸きゅう Honō no kokyū?) is one of the five main Breathing Styles directly derived from Sun Breathing. Flame Breathing is a Breathing Style that mimics flames and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques and forms involve extremely powerful singular strikes which ‘burn’ their opponents, with most attacks being initiated from a high stance. Users of Flame Breathing also visualize themselves seemingly creating and manipulating fire when unleashing its techniques.

All flame breathing techniques:

Flame Breathing has 9 techniques in total, with six known forms. Among these, the Ninth Form: Rengoku is an “Esoteric Art” exclusive to the Rengoku family.

First Form: Unknowing Fire (壱いちノ型かた　不知火しらぬい Ichi no kata: Shiranui?)[2] - The user dashes towards the target at tremendous speeds, before unleashing a singular horizontal slash directed at the targets neck for a decapitation.

Second Form: Rising Scorching Sun (弐にノ型かた　昇のぼり炎えん天てん Ni no kata: Nobori En Ten?)[3] - The user unleashes an arcing vertical slash in an upwards motion, often brought up from a tail guard.

Third Form: Blazing Universe (参さんノ型かた　氣き炎えん万ばん象しょう San no kata: Kien Banshō?)[4] - The user performs an arcing downwards vertical slash, often brought down from a high guard.

Fourth Form: Blooming Flame Undulation (肆しノ型かた　盛せい炎えんのうねり Shi no kata: Sei En no Uneri?)[5] - The user performs a singular slash or multiple if needed, in a fluid circular motion to defend from incoming attacks and decapitate multiple targets.

Fifth Form: Flame Tiger (伍ごノ型かた　炎えん虎こ Go no kata: Enko?)[6] - The user dashes forth, bringing their blade into a high guard before performing a series of sword slashes which take the form of a flaming tiger enveloping the user.

Ninth Form: Rengoku (玖くノ型かた　煉れん獄ごく Ku no kata: Rengoku?, lit. “Ninth Form: Purgatory”)[7] - The most powerful Flame Breathing technique. The user assumes a high stance before performing an extremely high-speed dash towards the target and unleashing a singular, devastating slash.

Thunder Breathing (雷かみなりの呼こ吸きゅう Kaminari no kokyū?) is one of the five main Breathing Styles directly derived from Sun Breathing. Thunder Breathing is a Breathing Style that mimics lightning, specifically swift strikes and movements akin to lightning ripping through the sky, and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques and forms involve utilizing blinding speeds and immensely fast attacks to overwhelm the enemy in an instant. Users of Thunder Breathing also visualize themselves seemingly creating and manipulating lightning and electricity when unleashing its techniques.

All techniques of thunder breathing:

First Form: Thunderclap and Flash (壱いちノ型かた　霹へき靂れき一いっ閃せん Ichi no kata: Hekireki Issen?)[4] - The user unsheathes their katana, dashes forward at blinding speeds and decapitates their opponent faster than they can react, before sheathing it back. This technique is extremely reminiscent of Iaijutsu and its movements are described to be akin to “lightning ripping through the air”.[5]

Sixfold (六ろく連れん Rokuren?)[6] - An extension of the Thunderclap and Flash technique created by Zenitsu. The user performs Thunderclap and Flash six times in quick succession while slightly augmenting the power and speed of his dashes.

Eightfold (八はち連れん Hachiren?)[7] - An extension of the Thunderclap and Flash technique created by Zenitsu. The user performs Thunderclap and Flash eight times in quick succession while slightly augmenting the power and speed of his dashes.

Godspeed (神しん速そく Shinsoku?)[8] - An extension of the Thunderclap and Flash technique created by Zenitsu. The user performs Thunderclap and Flash while greatly augmenting the speed of the technique. During the first display of this technique, an unconscious Zenitsu remarked that he mustn’t perform this technique more than 2 times, otherwise his legs would be rendered useless due to muscle fatigue and exhaustion. However, during the battle against Muzan Kibutsuji, Zenitsu has shown improvement in the proficiency of this technique, allowing him to use it more than 2 times while still maintaining the power and speed of the technique.

Second Form: Rice Spirit (弐にノ型かた　稲いな魂だま Ni no kata: Inadama?)[9] - Kaigaku releases five arched slashes accompanied by lightning in quick succession.

Third Form: Thunder Swarm (参さんノ型かた　聚しゅう蚊ぶん成せい雷らい San no kata: Shūbun Seirai?)[10] - Kaigaku surrounds the enemy with waves of arched lightning and attacks them from all directions.

Fourth Form: Distant Thunder (肆しノ型かた　遠えん雷らい Shi no kata: Enrai?)[11] - Kaigaku generates a ball of electricity that releases waves of strong multi-directional lightning bolts from afar.

Fifth Form: Heat Lightning (伍ごノ型かた　熱ねつ界かい雷らい Go no kata: Netsu Kairai?)[12] - Kaigaku unleashes a long-ranged upward sword slash accompanied by lightning.

Sixth Form: Rumble and Flash (陸ろくノ型かた　電でん轟ごう雷らい轟ごう Roku no kata: Dengō Raigō?)[13] - Kaigaku releases a series of powerful long-ranged lightning attacks that strike his opponent from afar.

Seventh Form: Honoikazuchi no Kami (漆しちノ型かた　火ほの雷いかづちの神かみ Shichi no kata: Honoikazuchi no Kami?, lit. Seventh Form: Flaming Thunder God) [14] - The personal creation of Zenitsu Agatsuma. The user dashes forward at blinding speeds and unleashes a singular forward slash at a low stance, which is seemingly accompanied by a yellow Japanese dragon shaped like a lightning bolt.

Stone Breathing (岩いわの呼こ吸きゅう Iwa no kokyū?) is one of the five main Breathing Styles derived from Sun Breathing. Stone Breathing is a Breathing Style that mimics earth and stone and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques and forms utilize the ground beneath the user and the vast surroundings to generate powerful and sturdy attacks that specialize in both offense and defense.

Stone Breathing has 5 known techniques and forms at minimum.

First Form: Serpentinite Bipolar (壱いちノ型かた　蛇じゃ紋もん岩がん・双そう極きょく Ichi no kata: Jamongan - Sōkyoku?)[2] - The user throws both the flail and axe towards their 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 through their target.

Second Form: Upper Smash (弐にノ型かた　天てん面めん砕くだき Ni no kata: Tenmen Kudaki?)[3] - The user throws both their axe and spiked flail for a pincer move before smashing down on the chain to cause the flail to then rebound and smash their target from afar.

Third Form: Stone Skin (参さんノ型かた　岩がん軀くの膚はだえ San no kata: Ganku no Hadae?)[4] - The user unleashes a series of slashes with their axe deflecting nearby attacks.

Fourth Form: Volcanic Rock, Rapid Conquest (肆しノ型かた　流りゅう紋もん岩がん・速そく征せい Shi no kata: Ryūmongan - Sokusei?)[5] - The user manipulates both the flail and axe weapons at both ends of the chain by swinging the chain on both sides in order to strike their opponents using a two pronged wide ranged attack.

Fifth Form: Arcs of Justice (伍ごノ型かた　瓦が輪りん刑ぎょう部ぶ Go no kata: Garin Gyōbu?)[6] - The user utilizes a powerful barrage with their 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.

Wind Breathing (風かぜの呼こ吸きゅう Kaze no kokyū?) is one of the five Breathing Styles derived directly from Sun Breathing. Wind Breathing is a Breathing Style that mimics wind, specifically powerful torrents of air and whirlwinds, and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques and forms involve purely offensive attacks, most of which utilizing rotating movements to generate swift whirlwind-like slashes that greatly increase the wielder’s striking range or utilizing the air around them to deliver sharp sickle-shaped attacks. Users of Wind Breathing also visualize themselves seemingly creating and manipulating wind when unleashing its techniques.

Wind Breathing has a minimum of 9 known techniques and forms.

First Form: Dust Whirlwind Cutter (壱いちノ型かた　鹿じん旋せん風ぷう・削そぎ Ichi no kata: Jin Senpū - Sogi?)[2] - The user dashes forward at blinding speeds and slashes continuously in a horizontal cyclone pattern.

Second Form: Claws-Purifying Wind (弐にノ型かた　爪そう々そう・科しな戸と風かぜ Ni no kata: Sōsō - Shinato Kaze?)[3] - The user lifts the sword upwards towards the right, above their head and unleashes four vertical slashes at once down on the enemy resembling claws.

Third Form: Clear Storm Wind Tree (参さんノ型かた　晴せい嵐らん風ふう樹じゅ San no kata: Seiran Fūju?)[4] - The user unleashes a whirlwind of slashes around their body that can defend them from incoming attacks and slice up their surroundings.

Fourth Form: Rising Dust Storm (肆しノ型かた　昇しょう上じょう砂さ塵じん嵐らん Shi no kata: Shōjō Sajinran?)[5] - The user releases several slashes above them from below their target.

Fifth Form: Cold Mountain Wind (伍ごノ型かた　木こ枯がらし颪おろし Go no kata: Kogarashi Oroshi?)[6] - The user creates several circular arched slashes that increase in size from above their target.

Sixth Form: Black Wind Mountain Mist (陸ろくノ型かた　黒こく風ふう烟えん嵐らん Roku no kata: Kokufū Enran?)[7] - The user rotates their body in an uppercut movement, creating an arcing slash.

Seventh Form: Gale, Sudden Gusts (漆しちノ型かた　頸けい風ふう・天てん狗ぐ風かぜ Shichi no kata: Keifū - Tengu Kaze?)[8] - The user leaps into the air while swinging their blade which generates gale-force winds to shred their opponent apart.

Eighth Form: Primary Gale Slash (捌はちノ型かた　初しょ烈れっ風かざ斬きり Hachi no kata: Sho Rekkaza Kiri?)[9] - The user leaps into the air and swings their blade which generates circular torrents of wind that slices up the opponent instantly.

Ninth Form: Idaten Typhoon (玖くノ型かた　韋い駄だ天てん台たい風ふう Ku no kata: Idaten Taifū?)[10] - The user backflips into the air and while upside-down, unleashes a powerful gust of circular wind that slashes apart anything below.

Beast Breathing (獣ケダモノの呼こ吸きゅう Kedamono no kokyū?) is a Breathing Style that is distantly derived from Wind Breathing. Beast Breathing is a Breathing Style that mimics beasts/wild animals, specifically their unpredictable, ferocious and wild nature, including movements, attacks and senses, and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques and forms are simple, straight-forward yet wild, unpredictable and animalistic movements and attacks, although one of them utilizes the powerful sense of touch to replicate an animal’s primal senses. Users of Beast Breathing also visualize themselves seemingly manifesting the fangs and claw slashes of a wild animal when unleashing its techniques.

All forms of beast breathing:

Unlike other Breathing techniques, only supplement moves are called “Forms”, as assaulting Beast Breathing moves are called “Fangs” instead.

First Fang: Pierce (壱いちノ牙きば　穿うがち抜ぬき Ichi no kiba: Ugachi Nuki?)[1] - The user stabs the target’s neck with both blades.

Second Fang: Slice (弐にノ牙きば　切きり裂さき Ni no kiba: Kirisaki?)[2] - The user unleashes a double slash with two blades in an X-shaped cut.

Third Fang: Devour (参さんノ牙きば　喰くい裂ざき San no kiba: Kuizaki?)[3] - The user releases two simultaneous horizontal slashes towards the target’s throat to decapitate them.

Fourth Fang: Slice ‘n’ Dice (肆しノ牙きば　切きり細こま裂ざき Shi no kiba: Kiri Komazaki?)[4] - The user delivers multiple diagonal double slashes with both swords.

Fifth Fang: Crazy Cutting (伍ごノ牙きば　狂くるい裂ざき Go no kiba: Kuruizaki?)[5] - The user slices everything in all directions while in mid-air.

Sixth Fang: Palisade Bite (陸ろくノ牙きば　乱らん杭ぐい咬がみ Roku no kiba: Ranguigami?)[6] - The user releases simultaneous slashes with two swords from both directions in a saw-like movement.

Seventh Form: Spatial Awareness (漆しちノ型かた　空くう間かん識しき覚かく Shichi no kata: Kūkan Shikikaku?)[7] - The user utilizes their sense of touch to identify the position of enemies and their weaknesses by feeling small disturbances in the air. This technique was so strong that Inosuke Hashibira could sense all the demons spread out through a whole mountain.

Eighth Form: Explosive Rush (捌はちノ型かた　爆ばく裂れつ猛もう進しん Hachi no kata: Bakuretsu Mōshin?)[8] - The user charges towards their opponent at blinding speeds, ignoring all incoming attacks.

Ninth Fang: Extending Bendy Slash (玖くノ牙きば　伸しん・うねり裂ざき Ku no kiba: Shin - Unerizaki?)[9] - The user dislocates the joints of their arm to increase the range of their attack, and then unleashing a fast swinging forward strike.

Tenth Fang: Whirling Fangs (拾じゅうノ牙きば　円えん転てん旋せん牙が Jū no kiba: Enten Senga?)[10] - The user rapidly spins their swords in a circular motion, deflecting enemy attacks such as projectiles.

Eleventh Fang: Sudden Throwing Strike (思おもいつきの投なげ裂さき Omoitsuki no Nagesaki?)[11] - The user throws both of their blades in a spinning motion at an enemy.

Mist Breathing (霞かすみの呼こ吸きゅう Kasumi no kokyū?) is a Breathing Style derived from Wind Breathing. Mist Breathing is a Breathing Style that mimics mist, specifically the obscurity of mist, and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques and forms involve obscure movements and attacks that disorientate and confuse the target, similar to how a thick layer of mist obscures one’s vision. Users of Mist Breathing also visualize themselves seemingly creating and manipulating mist when unleashing its techniques.

Mist Breathing originally has 6 known forms and techniques,

First Form: Low Clouds, Distant Haze (壱いちノ型かた　垂すい天てん遠とお霞がすみ Ichi no kata: Suiten Tōgasumi?)[1] - The user performs a singular and powerful frontal thrust.

Second Form: Eight-Layered Mist (弐にノ型かた　八や重え霞かすみ Ni no kata: Yaekasumi?)[2] - The user performs eight slashes in quick succession.

Third Form: Scattering Mist Splash (参さんノ型かた　霞か散さんの飛し沫ぶき San no kata: Kasan no Shibuki?)[3] - The user performs a powerful and swift circular slash that can blow away incoming projectiles.

Fourth Form: Shifting Flow Slash (肆しノ型かた　移い流りゅう斬ぎり Shi no kata: Iryūgiri?)[4] - The user takes a low stance before dashing toward the target and slashing them.

Fifth Form: Sea of Clouds and Haze (伍ごノ型かた　霞か雲うんの海うみ Go no kata: Kaun no Umi?)[5] - The user charges at their target at blistering speeds in a zig-zag motion while performing a barrage of continuous slashes in front and/or around them.

Sixth Form: Lunar Dispersing Mist (陸ろくノ型かた　月つきの霞か 消しょう Roku no kata: Tsuki no Kashō?)[6] - The user leaps into the air and performs a multitude of slashes in a somersaulting motion, decimating dozens of targets at once.

Seventh Form: Obscuring Clouds (漆しちノ型かた　朧おぼろ Shichi no kata: Oboro?)[7] - The personal creation of Muichiro Tokito. A movement-based technique designed to heavily disorientate the target, which is done so by fluctuating the user’s tempo. When the user appears before the target, they move incredibly slow, but then accelerate to blistering speeds before getting hit, making it seem like they disappeared into a cloud of mist. When done repeatedly, it can disorientate the target to the point of making them think they are being covered in a thick layer of mist.

Sound Breathing (音おとの呼こ吸きゅう Oto no kokyū?) is a Breathing Style derived from Thunder Breathing.

Sound Breathing is a Breathing Style that mimics sound, specifically its disorientating loudness, and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques and forms utilize explosives to deal massive amounts of damage while making use of extremely fast movements similar to how fast sound travels as well as the user’s sense of hearing. Users of Sound Breathing also visualize themselves seemingly generating and manipulating loud sounds and explosives when unleashing its techniques.

Sound Breathing has 5 techniques and forms at minimum, with 3 known techniques.

First Form: Roar (壱いちノ型かた　轟とどろき Ichi no kata: Todoroki?)[2] - The user lifts their twin swords above their head and slams them down with great force, causing a loud sound resembling thunder as a result.

Fourth Form: Constant Resounding Slashes (肆しノ型かた　響きょう斬ざん無む間けん Shi no kata: Kyōzan Muken?)[3] - The user holds their twin swords apart and spins them rapidly around themselves, enabling the blades to destroy anything it makes contact with for powerful defensive capabilities around the user.

Fifth Form: String Performance (伍ごノ型かた　鳴めい弦げん奏そう々そう Go no kata: Meigen Sōsō?)[4] - The user holds the chain of their twin swords and rotates the blades at high speed while charging forward. The spin of the blades without changing grip allows for continual slashes while still being in motion.

Love Breathing (恋こいの呼こ吸きゅう Koi no kokyū?) is a Breathing Style derived from Flame Breathing. Love Breathing is a Breathing Style that is based on the emotion of love, and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques inculcate a gymnastic and movement-oriented rhythm into the user’s attacks, making use of their superhuman flexibility, dexterity, and agility to perform wide, winding and weaving slashes that have mid-to-long range applications. Users of Love Breathing also visualize themselves seemingly creating pink and green sparks as well as pink lines that follow the direction of their attacks.

Love Breathing has 6 forms at minimum, with 5 known forms.

First Form: Shivers of First Love (壱いちノ型かた　初はつ恋こいのわななき Ichi no kata: Hatsukoi no Wananaki?)[1] - The user dashes forward and performs a single slash that winds through the target, hitting multiple areas with one slice.

Second Form: Love Pangs (弐にノ型かた　懊おう悩のう巡めぐる恋こい Ni no kata: Ōnō Meguru Koi?)[2] - The user performs a singular, long-winding swing that cuts the target at multiple angles.

Third Form: Catlove Shower (参さんノ型かた　恋こい猫ねこ時し雨ぐれ San no kata: Koi Neko Shigure?)[3] - The user leaps into the air and performs multiple arched slashes in quick succession.

Fifth Form: Swaying Love, Wildclaw (伍ごノ型かた　揺ゆらめく恋れん情じょう・乱みだれ爪づめ Go no kata: Yurameku Renjō - Midarezume?)[4] - The user leaps into the air before performing a somersault and releasing dozens of rapid, winding slashes from afar that essentially form a tornado of slashes.

Sixth Form: Cat-Legged Winds of Love (陸ろくノ型かた　猫ねこ足あし恋こい風かぜ Roku no kata: Neko Ashi Koi Kaze?)[5] - The user fully extends their sword to perform an arcing slash before retracting it and extending it once more, done in quick succession to form a layers of slashes.

Serpent Breathing (蛇へびの呼こ吸きゅう Hebi no kokyū?) is a Breathing Style derived from Water Breathing. Serpent Breathing is a Breathing Style that mimics serpents/snakes, specifically their slithering motions, and replicates it with the user’s movements, techniques and abilities. Most, if not all, known techniques and forms focuses on twisting and bending the sword like how a serpent slithers, the attacks are not direct and constantly meander which can ultimately strike anywhere. Users of Serpent Breathing also visualize themselves seemingly manifesting white serpents that accompany them when unleashing its techniques.

Serpent Breathing has 5 known techniques and forms at minimum.

First Form: Winding Serpent Slash (壱いちノ型かた　委い蛇だ斬ぎり Ichi no kata: Idagiri?)[1] - The user releases a singular frontal horizontal slash aimed at their target in a winding motion.

Second Form: Venom Fangs of the Narrow Head (弐にノ型かた　狭きょう頭ずの毒どく牙が Ni no kata: Kyōzu no Dokuga?)[2] - The user dashes behind their opponent at blinding speed and aims to swiftly slice off their head from behind.

Third Form: Coil Choke (参さんノ型かた　塒とぐろ締じめ San no kata: Toguro Jime?)[3] - The user circles around their opponent while using their sword to slice them from all directions.

Fourth Form: Twin-Headed Reptile (肆しノ型かた　頸けい蛇じゃ双そう生せい Shi no kata: Keija Sōsei?)[4] - The user leaps forward and performs a horizontal slash that slices through the target.

Fifth Form: Slithering Serpent (伍ごノ型かた　蜿えん蜿えん長ちょう蛇だ Go no kata: En’en Chōda?)[5] - The user charges forth in a twisting and winding motion, curving their sword in multiple directions to strike multiple targets at once. This technique is capable of decapitating multiple enemies at once.

Flower Breathing (花はなの呼こ吸きゅう Hana no kokyū?) is a Breathing Style derived from Water Breathing. Flower Breathing is a Breathing Style that mimics both perennial flowers and fruit blossoms and replicates them with the user’s movements, techniques, and abilities. Most, if not all, known techniques and forms are a combination of graceful attacks that focus on agility. This Breathing Style also enhances and utilizes one’s vision, albeit at the possible cost of their eyesight. Users of Flower Breathing also visualize themselves seemingly creating and manipulating flowers and petals when unleashing its techniques.

Flower Breathing originally has at least 7 techniques, 5 known techniques including the Final Form.

Second Form: Honorable Shadow Plum (弐にノ型かた　御み影かげ梅うめ Ni no kata: Mikage Ume?)[1] - The user releases several rotating sword slashes that deflects incoming physical attacks.

Fourth Form: Crimson Hanagoromo (肆しノ型かた　紅べに花はな衣ごろも Shi no kata: Beni Hanagoromo?)[2] - The user unleashes single sword slash that curves and twists gracefully.

Fifth Form: Peonies of Futility (伍ごノ型かた　徒あだの芍しゃく薬やく Go no kata: Ada no Shakuyaku ?)[3] - The user unleashes a flurry of nine consecutive attacks that flow and weave in on themselves.

Sixth Form: Whirling Peach (陸ろくノ型かた　渦うず桃もも Roku no kata: Uzumomo?)[4] - A technique used after or during evasion, the user spins around moving with their body weight to deliver an attack.

Final Form: Equinoctial Vermilion Eye (終ついノ型かた　彼ひ岸がん朱しゅ眼がん Tsui no kata: Higan Shugan?)[5] - A focusing technique that raises the user’s kinetic vision to its maximum, while using this technique the user perceives the world as if it were in slow motion. Usage of the technique, however, is highly dangerous, as the tremendous strain on the eyes could cause blood vessels to rupture and lead to partial or complete blindness.[6] This technique is still usable even if the user only has one fully functional eye.[7]

Insect Breathing (蟲むしの呼こ吸きゅう Mushi no kokyū?)[1] is a Breathing Style derived from Flower Breathing. Insect Breathing is a Breathing Style that mimics insects, specifically their lethal stings and movements, and replicates it with user’s movements, techniques and abilities. Most, if not all, known techniques and forms include stabbing, thrusting, and making shallow cuts with a specially coated/made sword to inflict multiple wounds onto the intended target in order to inject various lethal wisteria-based poisons into them. Users of Insect Breathing also visualize themselves seemingly manifesting insects (mainly butterflies) when unleashing its techniques.

Insect Breathing has 4 known techniques and forms at minimum.

Butterfly Dance: Caprice (蝶ちょうノ舞まい　戯たわむれ Chō no mai: Tawamure?)[2] - The user leaps into the air and charges towards the opponent, stinging them multiple times with their blade to inject poison in just seemingly one strike.

Dance of the Bee Sting: True Flutter (蜂ほう牙がノ舞まい　真ま靡なびき Hōga no mai: Manabiki?)[3] - The user dashes at their target at blinding speeds and uses the momentum of their speed to then strengthen a single thrust into their opponent and inject poison into them.

Dance of the Dragonfly: Compound Eye Hexagon (蜻せい蛉れいノ舞まい　複ふく眼がん六ろっ角かく Seirei no mai: Fukugan Rokkaku?)[4] - A six strike attack with which the user aims to strike and inject their target with multiple doses of poison at the target’s weak spots (such as the neck, heart, torso, etc.) in order to kill them with a large dose of poison.

Dance of the Centipede: Hundred-Legged Zigzag (蜈ご蚣こうノ舞まい　百ひゃく足そく蛇じゃ腹ばら Gokō no mai: Hyakusoku Jabara?)[5] - An attack with which the user uses their full speed to run a zigzag pattern that confuses their opponent in order to create an opening for them to directly stab their opponent’s neck and inject poison to kill them,

The Hashira (柱はしら Hashira?, lit. Pillars) are the highest-ranking Demon Slayers in the Demon Slayer Corps. Hashira is the highest rank which Demon Slayers can obtain in the Demon Slayer Corps. Those who hold the position are regarded as the most powerful and skilled combatants in the entire organization, protecting humanity against more dangerous threats that cannot be handled by other Demon Slayers.

The Hashira, in accordance with their great strength, hold the highest authority in the organization, second only to the Corps leader, Kagaya Ubuyashiki, and later, Kiriya Ubuyashiki.[1]

The Hashira are all assigned a specific region that they are required to patrol, usually to gather information about the demons inhabiting said area and to improve their swordsmanship. They are also deployed on missions only if lower-ranking members are unable to complete it.

Each Hashira are masters of a unique Breathing Style, some of which are even created by themselves. Interestingly, swordsmen who can use the Flame Breathing and Water Breathing have become Hashira in every era, with no exceptions thus far. To be a member of the Hashira, a Demon Slayer must be among the strongest combatants in the entirety of the Demon Slayer Corps. There are two known methods (both extremely difficult) that allow one to prove that they are worthy of becoming a Hashira: the first method is to accumulate a demon kill count of at least 50 as a Kinoe-ranked Demon Slayer, or slay a member of the Twelve Kizuki.[3][4] The second method is being a Tsuguko of a Hashira, which requires immense talent. Additionally, Tsuguko can only inherit the rank, if their respective Hashira dies or retires.

The effort required to achieve either of these methods requires almost five years worth of training, though, the talented might take only two or so years to do so.[3] However, there were one example that was much faster than that; Muichiro Tokito, who managed to rise to the rank of Hashira just two months after joining the Demon Slayer Corps.

All the current hashira are:

Water Hashira: Giyu Tomioka

Love Hashira: Mitsuri Kanroji

Serpent Hashira: Obanai Iguro

Wind Hashira: Sanemi Shinazugawa

Stone Hashira: Gyomei Himejima

Mist Hashira: Muichiro Tokito

Insect Hashira: Shinobu Kocho

Flame Hashira: Kyojuro Rengoku

Flower Hashira: Kanae Kocho

being nine Hashira at the start of the series.[5]

All of the Hashira have Destroyer of Demons (惡あっ鬼き滅めっ殺さつ Akki Messatsu?) engraved on their weapons.

Shinobu has Evil Demon (惡あっ鬼き Akki?) engraved on the right side of the blade, and Destruction (滅めっ殺さつ Messatsu?) engraved on the left side due to her sword’s structure.[6]

Although not fully touched upon, it is hinted that a Hashira can retire whenever they want to.

As the Hashira are a separate group of elite slayers, they have their own symbol on the back of their hand. These symbols correlate to what Breathing Style they are associated with.

Of the nine Taisho era Hashira introduced, only four of them use a standard Nichirin Katana, those four being Kyojuro Rengoku, Giyu Tomioka, Sanemi Shinazugawa, and Muichiro Tokito.

The Hashira with the biggest appetite is Mitsuri Kanroji, and the one with the smallest appetite is Obanai Iguro. Obanai can go about three days without eating.

The Hashira are the only people in the Demon Slayer Corps with golden buttons on their uniforms instead of silver.

Demons (鬼おに Oni?) are an ancient race of monstrous and malevolent beings

Demons are a carnivorous, vampire-like species whose primary diet is humans. They are also nocturnal as they are weak to sunlight, though they also stay up during the day as they don’t require sleep.[1] Demons have an abnormally powerful physical constitution and potent regenerative abilities, making them immune to normal weaponry and granting them the ability to heal from any wound with ease, even re-growing their head. Only the Nichirin Swords, weapons made from special ore with sunlight absorption properties, can inflict life-threatening wounds. However, even with a Nichirin Sword, the only method guaranteed to kill a demon is through decapitation. Demons are also known to hate wisteria, which are poisonous to them and whose smell is repudiated by them.

Practically all demons possess a murderous instinct to kill and devour humans, and have lost most of their memories from their human life. While they do still retain their original personality, most times it becomes a darker version of what it used to be, often corrupted by their core beliefs and their past.

Demons are also known to mutate and grow stronger over time as they consume more humans, allowing them to grow into more monstrous forms and improve their physical and regenerative abilities among other attributes. Once demons consume enough humans, they can develop Blood Demon Arts, an array of supernatural powers and techniques which are unique to each demon. Different human blood types have different levels of nutrition for demons: the rarer the blood type, the greater the nutrition. The rarest blood type is known as Marechi; eating a single human with this blood type provides a demon with roughly the same nutrition as eating one hundred ordinary humans.

The Demon Slayer Corps is the central adversary to the demon race. They are an organization trained to destroy them through a multitude of well refined techniques and tools developed across centuries to exterminate them. As a result, demons tend to live in secrecy with the population at large being ignorant to their existence. Even more, some demons blend into human society as a way to hide from persecutors and also to have a much easier access to prey, such as Daki and Muzan himself.

Demons for the most part work in solitude not bothering to group up and are instead shown to be highly territorial and fight over both prey and potential hunting grounds. A notable exception is the Spider Family, a group of demons forced to work together by their leader Rui, with permission to do so granted by Muzan himself.

Demons are all, for the most part, connected to their progenitor, Muzan Kibutsuji. All demons pledge obedience to Muzan, who uses fear and manipulation to maintain loyalty. However, Muzan’s control over his progeny is not omnipotent. An individual with a strong will might be able to sever their connection with Muzan, rendering them immune to his curse and making them mostly undetectable by him.

Indistinguishable: These demons are identical to normal humans at a glance, and mostly resemble their human forms, only with slight, sometimes unnoticeable, alterations to their physiology, including but not limited to: paler skin, pointed nails, strange pupils (that may or may not be due to their demonification).

Humanoid: These demons have humanoid bodies, but with prominent alterations to some aspect of their physiology that make them appear unnerving or noticeably alarming. The majority of lesser demons fall in this category, sharing common physical traits including but not limited to: curved horns, prominent fangs, discolored veins around the forehead, elf-like ears, unnaturally colored sclera, and specialized markings that resemble birthmarks or tattoos that appear somewhere on their bodies.

Inhuman: These demons are heavily mutated and bear little resemblance to humans. Their appearance are akin to beasts, yōkai, and traditional oni. These demons can have mutations that range from multiple appendages, disfigured bodies, and morphed faces. Some demons are more monstrous and animalistic, while some are more abstract and eldritch.

Demons are not born naturally; they are all originally humans who have been transformed into demons later in life. The very first demon, Muzan, underwent an inadvertent transformation when his doctor administered him an experimental medicine containing the primary component of the Blue Spider Lily, in an effort to cure his terminal illness. After becoming a demon, he discovered his enhanced physiology and, while he enjoyed the power that it gave him, he also discovered his vulnerability to sunlight, which caused severe burns upon exposure.[2] Throughout his thousand-year existence, Muzan sought to create more demons, driven by the hope that one of them would undergo a mutation that would grant them the ability to withstand sunlight.[3] This pursuit was not aimed at increasing the overall number of demons, but rather focused on finding the Chosen Demon whom he can absorb to grant him the power to overcome his vulnerability to sunlight.[4][1]

As the progenitor of demons and the source from which nearly all demons originate, Muzan is the only person in the world who possesses blood that has the unique power to transform humans into demons.[5] His cells permeate within all the demons he creates, serving as the foundation of their existence. Consequently, when Muzan is eliminated, all the demons he has spawned will cease to exist.[6]

New demons are created by exposing humans to Muzan’s blood, which triggers a transformative process, provided the individuals can withstand the resulting mutations. It should be noted that this is not a mystical process, but a biological one, performed at a cellular level, which suggests that Muzan’s blood and the Blue Spider Lily medicine have mutagenic properties. There are three primary methods by which demonification is accomplished:

Forceful injection by Muzan: This method involves Muzan personally injecting a controlled amount of his blood into a human, achieved through attacks or by taking advantage of an injured person. The contact of the victim’s open wound with his blood initiates the transformation.

Recruitment by Muzan: This method involves Muzan seeking out vulnerable humans he deems worthy to become a demon and convince them to willingly accept his invitation to become a demon,

Recruitment by an Upper Rank: This method involves the Upper Ranks of the Twelve Kizuki providing their blood to humans they deem strong enough to become a powerful demon.

Due to the alteration of bodies by Muzan’s blood, having a greater quantity of his blood results in increased power. However, the majority of humans are unable to withstand the extreme transformation caused by a large amount of his blood, leading to the destruction of their cells and their bodies disintegrating into ash.[3][18] Consequently, it is challenging for Muzan to find individuals who possess the resilience to withstand a sufficiently high concentration of his blood necessary to transform into an Upper Rank-level demon, though this can be mitigated by giving demons smaller doses of blood over a period of time.

Those who practice Breathing Styles exhibit greater resilience to the transformative effects of Muzan’s blood. As a result, a significantly larger quantity of Muzan’s blood is required and a longer period of time is needed for Breathing users to undergo transformation into demons. For instance, the process of transformation for Kokushibo required an extensive period of three full days to complete.[16] This stands in stark contrast to the relatively quick transformations observed in other demons, such as the Asakusa Demon, which occurred in mere seconds, or Nezuko, whose transformation took several hours. Following this, Muzan lost interest in turning swordsmen who employ Breathing techniques.[19][1] Additionally, there are individuals who possess complete resistance to his blood, although they are exceptionally rare.[16]

In addition to Muzan, Tamayo is also able to create demons, albeit through scientific means rather than blood-sharing. However, this method is far less efficient, as it took her two hundred years to develop and was only put into practice once when she converted Yushiro to save him from a terminal illness.

The first demon that is said to have existed was Muzan Kibutsuji. The one who turned him into a demon was a generous doctor from the Heian Period, who wanted to save Muzan from death since, at the time, he was diagnosed with a disease which would kill him before he turned twenty. Out of frustration and thinking that the treatment would be useless and only cause him more suffering, Muzan killed the doctor before the latter could finish the treatment by letting Muzan consume the final part of his Blue Spider Lily medicine.

Shortly after, Muzan came to realize that the treatment had in fact worked and the effect was just delayed, prolonging his life and strengthening his body. However, it left him with a new, more serious problem; he was unable to walk in sunlight anymore, as doing so would burn him severely, realizing it would even kill him. He soon regretted killing the doctor, now forced to spend the rest of his life avoiding sunlight during the day and having to go out at night.

In order to gain the immunity to sunlight, he needed to complete the medicine made by the doctor, whom he had killed, by find the Blue Spider Lily, believing that if he consumed one, it could nullify his weakness to sunlight. Despite searching far and wide across Japan, he couldn’t find it as he was unaware that it only bloomed during daytime for at most two to three days a year. With the search for the Blue Spider Lily going nowhere, Muzan decided to use his blood to turn people into demons, placing them under his control, hoping that one would either be able to find the Blue Spider Lily, or eventually able to withstand sunlight; once that happened, he could take their immunity to sunlight for himself by consuming them and then finally achieve his goal of conquering the sun and becoming truly immortal.

Demons have: High regeneration, Supernatural strength, Supernatural speed, Supernatural durability, Supernatural senses and powers, Infinite stamina, Menacing aura, Immortality but die to the sun or nichirin blades, Disease immunity, Supernatural blood.

Weaknesses:

Sunlight: The greatest threat to demons is sunlight, which burns their skin, ignites their cells, severely limits their regeneration, and fatally turns them into ashes. Even with his powerful regeneration, Muzan himself is not except from this weakness. As a result, demons could only go out at night or when there’s low sunlight such as rainy, cloudy, and overcast days.

Nichirin Swords: Nichirin Swords are blades composed of a special alloy made of Scarlet Crimson Iron Sand and Scarlet Crimson Ore, which has absorbed sunlight to such an extent that a decapitation with such a weapon can instantly kill a demon.[44] There are exceptions, however, as Muzan, Akaza, and Kokushibo overcame this weakness and survived decapitation by these blades. In the case of Daki and Gyutaro, both had to be decapitated before the other reattached their sibling’s head.

Wisteria: Wisteria is a plant that is poisonous to demons, and releases a scent that can repel demons. Extract from the plant can be used to create deadly and highly potent poison to easily kill lesser demons in small amounts, and later contributed to the death of Upper Rank Two Doma, though he had to ingest over 700 times the lethal dosage.

Starvation: A demon needs to eat human flesh (or at least drink human blood) to survive, if not, they will die of starvation.

Curse of Kibutsuji: Every demon that assimilated Muzan’s blood is also inflicted with a curse which activates if they call out divulge any information about him, even something as minor as his last name. When activated, their regeneration will cease and the cells belonging to Muzan inside the demon will kill them.

Because of this, many demons regard Muzan with great fear and respect, simply referring to him as “that Man” or “Him” in order to prevent the curse from being activated, while demons within the Twelve Kizuki refer to him as “Lord” or “Master”.

There are 6 Upper moons:

Upper rank 1: Kokushibo

Upper rank 2: Doma

Upper rank 3: Akaza

Upper rank 4: Hantengu

Upper rank 5: Gyokko

Upper rank 6: Daki and Gyutaro

There are 6 Lower moons:

Lower rank 1: Enmu

Lower rank 2: Rokuro

Lower rank 3: Wakuraba

Lower rank 4: Makugo

Lower rank 5: Rui

Lower rank 6: Kamanue