Fandom Demon Slayer: Blood War (Lore)

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• Demon Slayer Corps.
• Ranking
• Nichirin Blades

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  Demon Slayer Corps.
  
  
  
  The Demon Slayer Corps. is an organization that has never been recognized by any Government throughout the world. The original origin of them is unknown but it is known that they have been around since ancient times. The goal behind the organization is to protect the innocent from demons. The men and women within the Corp. are known as 'Demon Slayers', dedicating their lives to destroy demons even though they are merely human themselves. At first, there were hundreds of Demon Slayers that made up the organization and as time went on, more and more men and women joined till their numbers began to reach the thousands. However, as time went on and new generations began to take over, their numbers began to dwindle, by the death of demons taking young lives, retirement, and the disinterest or belief in the organization. To this day, the name of the Demon Slayer Corps. is more of a rumor and myth than anything and the number of actual Demon Slayers have reached well only in the double digits, if that.
  
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  Ranking
  
  
  
  When the Demon Slayer Corps. was still around and flourishing, within the organization, Demon Slayers were all marked with a rank to determine how powerful they were. These ranks ranged from Mizunoto as the lowest starting rank to Kinoe which was the highest rank. There was a rank that was above Kinoe that was known among the Corp. as Hashira, which were considered the best of the best out of all Demon Slayers within the organization. The requirements to rank up within the organization have always had to do with the number of demons defeated or how powerful the demon was that had been defeated. This information is recorded by a Kasugai Crow that relays both information and gives missions to Demon Slayers, each individual is given a Crow when they first join the Corp.
  
  There are two other ranks that while are not listed, are still considered important roles in the organization known as Tsuguko and Kakushi. The Tsuguko are talented Demon Slayers that a Hashira has selected to become their successor if they should ever die or retire. While it does not guarantee their future position, it allows the chance that the Demon Slayer will have a much higher chance to replace their mentor when the time comes compared to any other individual.
  The Kakushi are individuals who have no swordsmanship skill but are still a part of the Corp. their duty is considered the 'cleanup crew' as they come in after large battles to provide medical care to those who were fighting.
  
  To this day, the whole concept behind the ranking system has nearly been extinguished due to the lack of Demon Slayers and the fact that the organization is practically disbanded. Strangely enough however, even though the system may seem forgotten, those who still continue on the legacy of Demon Slayers are still capable of summoning their rank mark upon the back of their hand if they call forth for it. Including this is the fact that if an individual has decided to become a Demon Slayer and were somehow able to find a Trainer, then they are also given a Kasugai Crow. Where these Crows reside to this day that they continue to serve is currently unknown.
  
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  Nichirin Blades
  
  
  
  Special weapons wielded by Demon Slayers that are specifically forged to destroy demons. All Nichirin weapons are forged with two ingredients, Scarlet Crimson Iron Sand and Scarlet Ore. Both of these ingredients can be found on the top of any tall mountain allowing them to be bathed in sunlight. Because of this, when weapons are forged with these materials, they absorb sunlight allowing Demon Slayers to destroy demons with them. When decapitating a limb of a demon with a Nichirin weapon, that specific body part will disintegrate, and the demon will be unable to regenerate from the wound. If a demon's head is cut off with this weapon, they will be killed.
  Every Nichirin weapon is unique to its wielder, as once an individual has obtained enough skill, the instant they wield a Nichirin weapon, the color of the blade or whatever the weapon may be, will change to a specific color to represent them. It is said that the color determines normally what type of Breathing Form the user should or will master eventually. Aside from the color change, it is not uncommon for weapons to obtain markings all over their weapon once the individual has a hold onto their weapon as well.
  

 

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Breathing Styles

Breathing styles are taught to all individuals within the Demon Slayer Corps. every breathing style is a type of swordsmanship form of combat. Every type of breathing makes use of a specific technique that while not every Demon Slayer is expected to immediately master but must know the basics and understanding of how to use it, is called "Total Concentration Breathing"; this technique allows the user to inhale the maximum amount of oxygen into their body within a specific breath pattern. Doing so, will raise their physical and mental prowess allowing even humans to be able to have superhuman qualities such as strength, speed, durability, stamina, faster thought process, etc. At more advanced levels of "Total Concentration Breathing", the user is able to clot blood vessels to stop wounds from bleeding or even slow the progression of poisons from spreading through their bodies. Many of those who have mastered this technique have been able to continue using the technique on a 24hour basis which in turn is considered "Total Concentration Breathing: Constant".

Another advanced form of breathing that many veteran Demon Slayers use is called "Recovery Breathing", this technique allows the user to inhale oxygen at a steadier rate to allow the user to steady their breathing causing them to recover from fatigue and stiff muscles temporarily.

Of each of the elemental types of breathing styles, there are multiple forms with each allowing for a variety of strikes. It is possible to maximize the power of a single form with enough practice if the user is unaware of how to use other forms. It is also possible for the user to mix in different types of elemental breathing styles if they find that they cannot seem to understand one enough.

• Flame-Breathing
• Water-Breathing
• Wind-Breathing
• Stone-Breathing
• Thunder-Breathing
• Serpent-Breathing
• Insect-Breathing
• Love-Breathing
• Flower-Breathing
• Mist-Breathing
• Beast-Breathing

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  Flame-Breathing
  
  
  
  
  • First Form: Unknowing Fire - The user charges towards their target at high speeds and unleashes a singular slash that aims to decapitate them.
  
  
  • Second Form: Rising Scorching Sun - The user releases an arching sword slash upwards.
  
  
  • Third Form: Blazing Universe - The user swings their blade downwards in an arc.
  
  
  • Fourth Form: Blooming Flame Undulation - The user swings their blade in a circular motion that is used to defend from incoming attacks or slash multiple targets in one swoop.
  
  
  • Fifth Form: Flame Tiger - The user performs a series of powerful sword slashes that seemingly takes the form of a flaming tiger.
  
  
  • Ninth Form: Hellfire - The most powerful Flame Breathing technique. The user takes a high stance with their sword before dashing forward at high speeds. The technique is powerful enough to completely carve out the ground in its wake. This technique seemingly takes the form of a flaming Japanese dragon that envelopes the user as they are charging towards the target.
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  Water-Breathing
  
  
  
  
  • First Form: Water Surface Slash - The user generates enough momentum to create a powerful single concentrated slash.
  • Second Form: Water Wheel- The user leaps and vertically spins forward in the air while releasing a flowing attack in a circular motion.
    
    
    • Second Form: Improved, Lateral Water Wheel - An alternate variation of Second Form: Water Wheel that unleashes a horizontal spin instead of a vertical one.
  
  
  • Third Form: Flowing Dance - 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- The user makes multiple consecutive slashes while twisting their body and sword in a flowing fashion to deliver multiple blows simultaneously.
    
    
    • Striking Tide, Turbulent - An improved version of the Fourth Form: Striking Tide. The user increases the quantity of consecutive strikes and slashes along with improving its accuracy in order to contact a specific target during a chaotic situation.
  
  
  • Fifth Form: Blessed Rain After the Drought - 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- The user fiercely twists their upper and lower body, creating a whirlpool of air that cuts anything caught in it. Its effect and efficiently is enhanced underwater, where the user can draw water around their weapon to enhance their slashes.
    
    
    • Whirlpool, Flow - A combination of Third Form: Flowing Dance and Sixth Form: Whirlpool, in which the user combines the footwork from Flowing Dance and the twisting movements of Whirlpool, performing an attack around the user that conjures a twisting, swirling, vicious flow of water to redirect projectiles from multiple angles.
  
  
  • Seventh Form: Drop Ripple Thrust- The user performs a fast and accurate stab, capable of reducing the impact of a moving target.
    
    
    • Drop Ripple Thrust, Curve - 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 - 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 - 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 - The user performs a continuous flowing attack which seemingly takes the form of a water dragon that increases in strength and power with each rotation due to momentum.
  
  
  • Eleventh Form: Dead Calm - 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.
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  Wind-Breathing
  
  
  
  
  • First Form: Dust Whirlwind Cutter - The user dashes forward at blinding speeds and slashes continuously in a horizontal cyclone pattern.
  
  
  • Second Form: Claws-Purifying Wind - 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: Clean Storm Wind Tree - 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 - The user releases several slashes above them from below their target.
  
  
  • Fifth Form: Cold Mountain Wind - The user creates several circular arched slashes that increase in size from above their target.
  
  
  • Sixth Form: Black Wind Mountain Mist - The user rotates their body in an uppercut movement, creating an arcing slash.
  
  
  • Seventh Form: Gale, Sudden Gusts - 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 - 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 - The user backflips into the air and while upside-down, unleashes a powerful gust of circular wind that slashes apart anything below.
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  Stone-Breathing
  
  
  
  
  • First Form: Serpentinite Bipolar - 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 his target.
  
  
  • Second Form: Upper Smash - The user throws both his axe and spiked flail for a pincer move before smashing down on the chain to cause the flail to then rebound and smash his target from afar.
  
  
  • Third Form: Stone Skin - The user unleashes a series of slashes with his axe deflecting nearby attacks.
  
  
  • Fourth Form: Volcanic Rock, Rapid Conquest - 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 his opponents using a two pronged wide ranged attack.
  
  
  • Fifth Form: Arcs of Justice - The user utilizes a powerful barrage with his 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.
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  Thunder-Breathing
  
  
  
  
  • First Form: Thunderclap and Flash - 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".
    • Sixfold - The user performs Thunderclap and Flash six times in quick succession while slightly augmenting the power and speed of his dashes.
    • Eightfold - The user performs Thunderclap and Flash eight times in quick succession while slightly augmenting the power and speed of his dashes.
    • Godspeed - The user performs Thunderclap and Flash while greatly augmenting the speed of the technique.
  
  
  • Second Form: Rice Spirit - The user releases five arched slashes accompanied by lightning in quick succession.
  
  
  • Third Form: Thunder Swarm - The user surrounds the enemy with waves of arched lightning and attacks them from all directions.
  
  
  • Fourth Form: Distant Thunder - The user generates a ball of electricity that releases waves of strong multi-directional lightning bolts from afar.
  
  
  • Fifth Form: Heat Lightning - The user unleashes a long-ranged upward sword slash accompanied by lightning.
  
  
  • Sixth Form: Rumble and Flash - The user releases a series of powerful long-ranged lightning attacks that strike his opponent from afar.
  
  
  • Seventh Form: Honoikazuchi no Kami (Flaming Thunder God) - 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.
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  Serpent-Breathing
  
  
  
  
  • First Form: Winding Serpent Slash - The user moves like a slithering snake and releases several slashes in a winding pattern.
  
  
  • Second Form: Venom Fangs of the Narrow Head - The user dashes behind their opponent at blinding speed and aims to swiftly slice off their head.
  
  
  • Third Form: Coil Choke - The user circles around their opponent while using their sword to slice them from all directions.
  
  
  • Fourth Form: Twin-Headed Reptile - The user leaps forward and performs a horizontal slash that slices through the target.
  
  
  • Fifth Form: Slithering Serpent - The user curves their sword in multiple directions and slices their opponent, making it capable of decapitating multiple enemies at once.
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  Insect-Breathing
  
  
  
  
  • Butterfly Dance: Caprice - The user leaps into the air and charges towards the opponent and stings them multiple times with their blade to inject poison.
  
  
  • Dance of the Bee Sting: True Flutter - 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 - 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 - 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, with the stab's force and power being further enhanced by the momentum of their speed. Doma noted that the sheer speed of this technique is strong enough to destroy an entire wooden bridge.
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  Love-Breathing
  
  
  
  
  • First Form: Shivers of First Love - The user dashes forward with a series of extended whip slashes that winds around and through the target.
  
  
  • Second Form: Love Pangs - The user unleashes multiple powerful whip slashes around themselves.
  
  
  • Third Form: Catlove Shower - The user leaps and unleashes a series of ranged arced attacks in quick succession.
  
  
  • Fifth Form: Swaying Love, Wildclaw - The user somersaults backwards through the air creating a long whip-like string of attacks.
  
  
  • Sixth Form: Cat-Legged Winds of Love - The user twirls upside-down and creates multiple extending slashing attacks before retracting it and extending it again, all within a very short amount of time.
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  Flower-Breathing
  
  
  
  
  • Second Form: Honorable Shadow Plum - The user releases several rotating sword slashes that deflects incoming physical attacks.
  
  
  • Fourth Form: Crimson Hanagoromo - The user unleashes single sword slash that curves and twists gracefully.
  
  
  • Fifth Form: Peonies of Futility - The user unleashes a flurry of nine consecutive attacks that flow and weave in on themselves.
  
  
  • Sixth Form: Whirling Peach - 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 - 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. This technique is still usable even if the user only has one fully functional eye.
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  Mist-Breathing
  
  
  
  
  • First Form: Low Clouds, Distant Haze - The user unleashes a powerful thrust attack in front of them.
  
  
  • Second Form: Eight-Layered Mist - The user unleashes eight forward slashes with each one on top of the other in extremely quick succession.
  
  
  • Third Form: Scattering Mist Splash - The user releases a powerful circular slash in front of them that can be used to blow away projectiles.
  
  
  • Fourth Form: Shifting Flow Slash - The user quickly unsheathes their sword and dashes towards their enemy at blinding speeds and delivers a quick slash from beneath them. This technique is reminiscent of Iaijutsu.
  
  
  • Fifth Form: Sea of Clouds and Haze - The user dashes forward at high speed and unleashes a flurry of slashes that cover a wide area while obscuring their movements.
  
  
  • Sixth Form: Lunar Dispersing Mist - The user backflips into the air while upside down and delivers countless ranged slashes downwards, capable of decimating dozens of targets at once.
  
  
  • Seventh Form: Obscuring Clouds - A technique in which the user drastically changes the tempo of their movement to disorient their enemy, which seemingly takes the form of clouds of mist enveloping a wide area. When the user shows themselves, their speed will appear to be extremely slow but when they hide, the user moves in the blink of an eye.
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  Beast-Breathing
  
  
  
  
  • First Fang: Pierce - The user stabs the target's neck with both blades.
  
  
  • Second Fang: Slice - The user unleashes a double slash with two blades in an X-shaped cut.
  
  
  • Third Fang: Devour - The user releases simultaneous horizontal slashes towards the target's throat to decapitate them.
  
  
  • Fourth Fang: Slice 'n' Dice - The user delivers multiple diagonal double slashes with both swords.
  
  
  • Fifth Fang: Crazy Cutting - The user slices everything in all directions while in mid-air.
  
  
  • Sixth Fang: Palisade Bite - The user releases simultaneous slashes with two swords from both directions in a saw-like movement.
  
  
  • Seventh Form: Spatial Awareness - The user utilizes their sense of touch to identify the position of enemies and their weaknesses by feeling small disturbances in the air.
  
  
  • Eighth Form: Explosive Rush - The user charges towards their opponent at blinding speeds, ignoring all incoming attacks.
  
  
  • Ninth Fang: Extending Bendy Slash - 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 - The user rapidly spins their swords in a circular motion, deflecting enemy attacks such as projectiles.
  
  
  • Sudden Throwing Strike - The user throws both of their blades in a spinning motion at an enemy.

 

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Demons

An ancient race of monstrous, supernatural, immortal beings. Demons are mostly carnivorous, vampire-like beings whose main diet are human. Demons have abnormally powerful physical traits such as their strength, speed, durability, constitution, etc. Their ability to regenerate lost limbs differs between every demon as the more humans a demon consumes, the more powerful they become. All demons possess the murderous intent to kill and feast upon humans no matter how much they may attempt to resist it, while there are some who have better control than others, when faced with the sight and scent of blood, it becomes a near impossible task for a demon to resist the urge to feed. It is near impossible to kill a demon as their only weaknesses reside either upon the use of a Nichirin weapon and to decapitate them with it, the use of Wisteria which are considered poisonous to all demons, or sunlight in general, which will burn them.

After becoming a demon, little by little, their memories of their lives as humans eventually will fade away causing them to forget everything about their lives prior to becoming a demon. Even with the loss of their memory however, majority of the time, demons retain their personality of when they were human, although it may have become darker compared to their original selves.

When a demon has become powerful enough one way or another, eventually they are capable of using what is known as "Blood Demon Arts" which are an array of supernatural powers and techniques that vary and are unique to each demon. Just like their regular bodies however, Blood Demon Arts are weakened and can be dispelled by either sunlight or Nichirin weapons. Another weakness to this is if a demon's blood within their own body is too low, they will be unable to use any of their abilities due to the amount of strain and blood it consumes from within themselves.