Butterfly Mansion Care Staff
The Demon Slayer Corps —an ancient organization with hundreds of members, not officially recognized by the government but existing for a long time, and known since ancient times as "Demon Hunters." Members undergo training by trainers scattered throughout the country, and then pass the "Final Selection"—surviving seven days at Mount Fujikasane, where demons are imprisoned—to join the team. The team consists of one leader, nine Pillar-level officers, and hundreds of ordinary members. Ordinary members are divided into ten ranks, issued uniforms and "Nichirin Sword," and communicate their demon-slaying missions through talking "Kasugai Crow."
The position of leader of the Demon Slayer Corps has always been held by the Ubuyashiki Family.
The Pillars are the pillars supporting the Demon Slayer Corps, the highest-ranking swordsmen (usually nine). Unlike ordinary Demon Slayer Corps members, they are all battle-hardened and exceptionally talented individuals (as Ubuyashiki Headmaster stated, it was Muzan Kibutsuji who forced these hidden talents to unleash their full potential). All Pillars have undergone numerous trials to become Pillars.
Tsuguko – Demon Slayer Corps members personally trained by the Pillars; they must possess considerable talent, and ordinary people cannot be selected.
Trainer – A person responsible for training and nurturing new swordsmen in the Demon Slayer Corps.
Nichirin Sword - the special sword of the Demon Slayer Corps, is made from "Scarlet Crimson Ore" and "Scarlet Crimson Ore" which absorb sunlight. Nichirin Sword are also known as color-changing swords, which change color according to their owner, reflecting the breathing style suitable for the owner. For Water Breathing is blue, Thunder Breathing is yellow, Flame Breathing is red, Wind Breathing is green, and Stone Breathing is gray. (Black Blade are rarer) [26]
Swordsmiths are responsible for the forging and maintenance of Nichirin Sword. Each member of the Demon Slayer Corps has their own Meito. [26] Nichirin Sword are usually forged by swordsmiths in the village and then sent to the Demon Slayer Corps. To prevent attacks by demons, the Swordsmith Village is very well hidden. No one in the Demon Slayer Corps knows its exact location. To enter the village, one must be blindfolded and have their nose plugged. Several members of the Hidden Cave and Kasugai Crow will lead the way in sections. The order of the route, the Kasugai Crow leading the way, and the members of the Hidden Cave will change frequently. [15]
The Hidden Forces Demon Slayer Corps' post-battle cleanup unit, mostly composed of members without swordsmanship skills, responsible for handling the aftermath of battles between the Demon Slayer Corps and demons.
The Butterfly Mansion is a medical facility managed by the Insect Pillar, Shinobu Kocho, that provides treatment and rehabilitation for injured team members. Most of the nursing staff are team members who do not have swordsmanship skills.
Kasugai Crow – Karasu used to communicate with the Demon Slayer Corps headquarters. Each member has one, but for some reason only Zenitsu has a sparrow. They possess extremely high intelligence, can repeat orders in human language, and can also engage in self-aware dialogue. Although they are indistinguishable from each other in appearance, each has a different personality.
Total Concentration Breathing – a general term for techniques developed by the Demon Slayer Corps to combat demons with human bodies. Primarily used to enhance cardiopulmonary function, it allows the blood to absorb large amounts of oxygen, instantly boosting physical abilities to the point of possessing physical strength comparable to demons. Furthermore, there is "Total Concentration: Constant Focus," which allows for continuous and focused control of breathing even while asleep, and is the minimum requirement to approach the strength of a Pillar. Originating from "Sun Breathing," it has given rise to five basic styles: "Water," "Lightning," "Fire," "Rock," and "Wind." Later, new styles with various characteristics were developed based on these five styles. (See "Breathing Styles" for details)
Rare Blood – a rare type of human blood that, when consumed by demons, can have the effect of consuming dozens or even hundreds of people; some are even rarer types of Rare Blood that can make demons who smell them completely drunk.
Demonization – Possessing excellent biting power and digestive organs, they have a special constitution that allows them to devour demons, thus temporarily Demonization. The stronger the demon they devour, the greater the regenerative ability and power they gain from it. According to Kokushibo, Demon Eater have been appearing for over three hundred years.
Special physiques – Besides demons possessing extremely strong physical attributes and power, there are also some humans who are different from ordinary people, such as having superior five senses and muscle density several times higher than ordinary people, etc. Rare Blood and Demonization mentioned above also fall under the category of special physiques.
The Demon Slayer Mark – Legend has it that during the Sengoku period, several of the first Demon Slayers who Muzan Kibutsuji possessed markings resembling demon crests. However, because many perished before Awakening their Demon Slayer Mark, the methods of Demon Slayer Mark inheritance are shrouded in mystery. Furthermore, the Demon Slayer Mark was not valued at the time, and the Demon Slayer Corps faced numerous major crises of destruction throughout its history, leading to the loss of its lineage.
Fortunately, one of the Demon Slayer Mark swordsmen's diaries clearly recorded this passage. "Those who develop Demon Slayer Mark will, as if in resonance, cause those around them to also develop Demon Slayer Mark."
According to Upper Moon Kokushibo, the Demon Slayer Mark increases power by overdrawing one's lifespan, therefore swordsmen who Awakening the Demon Slayer Mark do not live past the age of 25. However, there have been exceptions, namely Yoriichi Tsugikuni, the swordsman of Sun Breathing, who was also the first swordsman to Awakening the Demon Slayer Mark. He was born with the Demon Slayer Mark and made others Awakening the Demon Slayer Mark as well.
Those known to Awakening their Demon Slayer Mark include: Yoriichi Tsugikuni, Michikatsu Tsugikuni (Kokushibo), the Sengoku Tanjiro Kamado, Muichiro Tokito, Muichiro Mitsuri Kanroji, Giyu Tomioka, Giyu Tomioka, Gyomei Himejima, Sanemi Shinazugawa, and Gyomei Himejima Obanai Iguro.
The Transparent World —a world that can be seen when the mind becomes transparent, a "supreme realm" that can only be reached after striving with all one's might and enduring pain.
In this state, by focusing and shutting down superfluous senses, the creature's body appears almost transparent. Its movement speed, ability to predict and evade attacks are significantly enhanced, the blood flow in the opponent's lungs is clearly visible, and the contraction of its own muscles can be grasped more quickly. Even battle aura can be freely shut down as needed, because the increased perception makes the enemy's movements appear slower.
Humans who know this technique include: Yoriichi Tsugikuni, Michikatsu Tsugikuni (Kokushibo), Tanjuro Kamado, Tanjiro Kamado, Gyomei Himejima Muichiro Tokito, Obanai Iguro.
Crimson Blade – By using powerful grip or through the collision of weapons, the temperature of the blade can be raised, transforming it into a "Crimson Blade." Using Crimson Blade greatly increases the damage dealt to demons, reduces the regeneration speed of parts of demons Crimson Blade, and counters all Blood Demon Art.
Humans who know this technique include: Yoriichi Tsugikuni, Tanjiro Kamado, Muichiro Tokito, Obanai Iguro, Gyomei Himejima, Sanemi Shinazugawa, Giyu Tomioka.
Demons – legendary man-eating demons since ancient times, transformed from human bodies after absorbing the blood of Muzan Kibutsuji. They possess strong regenerative abilities, high physical strength, and the ability to mimic and alter their bodies. They feed on humans and become ferocious when hungry, growing stronger the more people they consume. Some of the stronger demons even possess the supernatural power of "Blood Demon Art."
Ghosts have a limit to regeneration; repairing their bodies requires physical strength, which they obtain by preying on humans.
However, it also has fatal weaknesses: sunlight and the Nichirin Sword. If a demon is exposed to sunlight or has its neck severed by the Nichirin Sword, it will turn to dust and disappear. It has a habit of disliking wisteria flowers, and can be trapped by the barrier of wisteria flowers, or be poisoned by the poison of wisteria flowers.
The Twelve Kizuki – Muzan Kibutsuji's direct subordinates, inheriting his Muzan bloodline. Each demon has a number etched in its eye, divided into six Upper Moons and six Lower Moons, with Upper Moon One being the highest and Lower Moon Six the lowest. Upper Moon demons have numbers in both eyes and possess the power to kill Pillar-level swordsmen; this has remained unchanged for a century. Lower Moon demons have numbers in one eye, which change frequently. After Lower Moon Five, Rui, was defeated, the Twelve Muzan Kibutsuji. Lower Moon demons can initiate bloody battles to exchange positions with higher-ranking demons.
Blood Demon Art – Unlike the immortality and Monster Strength of ordinary demons, some demons possess special abilities. The stronger the demon, the more diverse and numerous its Blood Demon Art may become. Blood Demon Art are countered by the Eight Gates Crimson Blade.
Limit Breaking – Ordinary demons die after being decapitated by Nichirin Sword; this is the limit of a demon's power. However, a few powerful demons, when on the verge of death after being decapitated by Nichirin Sword, may break through their demon limit if they possess strong willpower. This allows their neck to cease to be their weakness, enabling head regeneration. Even if they are decapitated again by Nichirin Sword, they will not die. However, exposure to sunlight or being cut to the limit of regeneration by Crimson Blade will still result in death.
Muichiro Tokito's twin brother, who has no swordsmanship skills, wears a black robe with cloud patterns.
She has a terrible temper and likes to speak her mind. She always scolds her younger brother Muichiro Tokito for being useless, and her catchphrase is "Muichiro Tokito's 'Mu' is the 'Mu' in 'incompetent'." In reality, she cares about him very much. Because she is worried that Muichiro Tokito, who wants to join the Demon Slayer Corps as a swordsman, might lose his life, she rudely drives away the master's wife, Amane Ubuyashiki, when she comes to visit.
At the age of 11, his arm was torn off by a demon that suddenly attacked him. After Muichiro Tokito defeated the demon, Yuichiro was already on the verge of death due to excessive blood loss. Before dying, he revealed his true feelings, hoping that he would bear all the divine punishment alone, and died after stating that "Muichiro Tokito's name Mu is the infinite Mu, the 'Mu' that can exert infinite power to protect others".
One of Tengen Uzui's wives, a female ninja.
There is a beauty mark near the corner of her eye.
In order to track down the demon's whereabouts, he disguised himself and infiltrated the famous brothel "Kyogokuya" in Yoshiwara. During his stay, he first discovered that the brothel's star courtesan, "Warabihime," was actually Upper Moon Six, Daki, but this also aroused her suspicion. In order to escape Kyogokuya, he took poison. When he was about to be sent to Kirimi-sekai, Daki hid her sash (a clone) on him for surveillance purposes. Later, he was rescued by Tengen Uzui, who arrived at Kirimi-sekai, and took the antidote he gave him.
Later, in the battle between Tanjiro and his companions against Daki and Gyutaro, they used a large number of kunai coated with wisteria poison, which became the key to turning the tide of the battle.
One of Tengen Uzui's wives, a female ninja.
She has a black ponytail, is a tomboy, and often scolds the timid Suma.
In order to track down the demon's whereabouts, he disguised himself and infiltrated the famous brothel "Ogimoto House" in Yoshiwara. He was captured after Daki discovered his identity, but was later freed because Inosuke Hashibira caused trouble in Daki's granary. After being rescued, he and Suma evacuated the crowd in the Entertainment District.
One of Tengen Uzui's wives, a female ninja.
The youngest of the three, despite being a ninja, is quite Xiao Ai.
In order to track down the demon's whereabouts, he disguised himself and infiltrated the famous brothel "Tokito House" in Yoshiwara. He was captured after Daki discovered his identity, but was later freed because Inosuke Hashibira caused trouble in Daki's granary. After being rescued, he and Makio evacuated the crowd in the Entertainment District.
Demon Slayer Corps swordsman, known as the "Child of the Bright Red Flame," with Red-Hair and red eyes, a scar on his left forehead, and wearing Hanafuda Earrings passed down through generations. Over his Demon Slayer Corps uniform, he wears a green Ichimatsu-patterned haori.
Personality traits
The eldest son is honest, kind, gentle, values family, and is serious, stubborn, and responsible.
They are not good at lying, and their expressions become very strange when they lie. On the other hand, they are very stubborn and will never allow themselves to owe the other party favors or money.
Despite experiencing despair, they retain a kind heart and possess the wisdom to find solutions in crises. They have a dedicated sense of responsibility towards all things and matters, and genuinely show kindness to everyone, truly considering and caring for others. They possess strong empathy.
Because of his sister's Demonization, he has a much greater capacity for tolerance and understanding towards demons than others. For the sake of the innocent people who were killed, he would not hesitate to slash a demon's neck, but he still respects the lives of those who were once human but became demons. Although he feels sympathy and sorrow for the demons' past experiences, he uses the warmth of his heart to make them feel comforted as they perish, thus redeeming many demons he fought. He once said, "Demons are not ugly monsters; demons are empty creatures, pitiful creatures." But he will never forgive a demon who has killed someone.
Sense of smell
Tanjiro possesses a uniquely keen sense of smell, enabling him to discern human emotions through scent, as well as distinguish between humans and demons. With training, he can even detect "Opening Thread" during battle, scents that contain the opponent's weaknesses.
Headbutt
Tanjiro's forehead is as hard as iron, so he often uses his head to launch powerful Headbutt attacks (Iron Head Technique), the power of which even demons are no match for. Fans jokingly call him "Head Pillar" or "Head Breathing". Tanjiro's iron head is said to be inherited from his mother, Ms. Kie Kamado, who once used her Headbutt to knock back a wild boar.
Demon Slayer Mark
Tanjiro Demon Slayer Mark is located on his left forehead and is flame-shaped. Tanjiro Awakening his Demon Slayer Mark during the battle in Yoshiwara Entertainment District, making him the first member of this generation of Demon Slayer Mark to Awakening it.
Once the Demon Slayer Mark are activated, physical fitness can be greatly improved. According to records, those who develop Demon Slayer Mark will cause those around them to also develop Demon Slayer Mark, as if by resonance.
Activating the Demon Slayer Mark requires a body temperature of 39 degrees Celsius and a heart rate exceeding 200 beats per minute, placing a tremendous burden on the body. According to Upper Moon One, Kokushibo, those who activate the Demon Slayer Mark do not live past the age of 25.
Transparent World
Tanjiro learned it from his father, Tanjuro Kamado, when he was young, and later fully understood its principles during his battle with Upper Moon Three, Akaza.
The world that can be seen when the mind becomes transparent, the "supreme realm" that can only be reached after striving with all one's might and enduring pain.
In this state, by focusing and shutting down superfluous senses, the creature's body appears almost transparent. Its movement speed, prediction of attacks, and evasion are significantly enhanced. The blood flow in the opponent's lungs is clearly visible, and the contraction of its own muscles can be grasped more quickly. Even battle aura can be freely shut down as needed, because the increased perception makes the enemy's movements appear slower.
Breathe
Water Breathing
One of the five basic breathing techniques derived from the initial Sun Breathing.
The breathing style that Tanjiro learned when Sakonji Urokodaki of Tanjiro has ten sword forms.
Tanjiro Kamado is the eldest son of the Kamado Family of charcoal sellers. His family consists of his mother, Kie Kamado, three younger brothers, Takeo Kamado, Shigeru, Rokuta Kamado, and two younger sisters Nezuko and Delia. Since his father, Tanjuro Kamado, died early, the family has always relied on selling charcoal to make a living.
On his way home after selling charcoal, Tanjiro was asked to stay at Saburo's house at the foot of the mountain for the night because "there are demons at night," thus escaping his fate of being killed. When he returned home, Tanjiro was shocked to find that his mother, younger brother and sister had all been brutally murdered by demons, and only his eldest sister, Nezuko Kamado, still had body temperature.
The beginning of the long night
While taking his younger sister down the mountain to find a doctor, Nezuko suddenly turned into a demon and attacked Tanjiro. Tanjiro managed to call out to her, and she regained consciousness. However Giyu Tomioka, the Water Pillar of the Demon Slayer Corps, arrived at the scene and attempted to kill Nezuko. Giyu Tomioka sternly reprimanded Tanjiro for abandoning reason and only pleading for her life. In a moment of desperation, Tanjiro devised a plan that nearly defeated Giyu, but Giyu Tomioka managed to evade him. Later, Giyu Tomioka witnessed Nezuko, even as a demon, maintaining her sanity and protecting Tanjiro. After considering the situation, he decided to spare Nezuko. After Tanjiro awoke, Giyu Tomioka told him to go to Mount Sagiri to find Sakonji Urokodaki.
On their journey, Tanjiro and Nezuko encountered a demon in a Buddhist temple. Although the siblings fought with all their might to kick the demon's body off a cliff to destroy it, the demon's head remained alive. As Tanjiro attempted to deliver the final blow with his short sword, a mysterious old man wearing a tengu mask suddenly appeared and told Tanjiro that this method would not kill the demon. However, when Tanjiro tried to ask the old man how to deal with the demon, the old man insisted that Tanjiro think for himself. Not wanting the demon to die too painfully, Tanjiro kept thinking of a way to kill it in one blow, but even after sunrise, when the demon's head had been completely purified by the sunlight, he still couldn't come up with a solution.
At dawn, the old man revealed to Tanjiro that he was Sakonji Urokodaki. After burying the deceased, Sakonji Urokodaki turned to Tanjiro and questioned him, "What would you do if your sister became a man-eating demon?" Caught off guard, Sakonji Urokodaki was slapped across the face by Tanjiro. Sakonji Urokodaki told him that if such a thing happened, Tanjiro would have to kill his sister and then commit seppuku. Although Sakonji Urokodaki felt that Tanjiro was too gentle to be a demon hunter, he ultimately decided to take Tanjiro as his apprentice and led Tanjiro and Nezuko to Mount Sagiri. Upon arriving at Mount Sagiri, Nezuko fell into a deep sleep. After becoming Sakonji Urokodaki's apprentice, Tanjiro learned the Water Breathing sword technique and diligently trained to continuously improve his strength.
A year and a half later, Sakonji Urokodaki brought Tanjiro to a giant boulder on a mountain and gave Tanjiro a task: if he could cut the boulder without damaging his Nichirin Sword, he would allow him to participate in the Final Selection. However, Tanjiro repeatedly tried to cut the boulder but failed each time. Just as Tanjiro was struggling with this, a boy wearing a fox mask appeared. The fox-masked boy pointed out that Tanjiro had only memorized the knowledge his master had taught him, but had not truly mastered swordsmanship, and then challenged Tanjiro to a duel.
Come on, Tanjiro
During the duel, the opponent displayed astonishing strength, easily defeating Tanjiro who wielded a real sword with only a wooden sword. After waking from his unconsciousness, Tanjiro discovered he could no longer smell the opponent's scent. At the same time, another girl wearing a fox mask appeared before Tanjiro, introducing herself as Tanjiro, and revealing that the boy who had Sabito Tanjiro was named Makomo. Tanjiro learned from Makomo that she and Sabito were both disciples of Sakonji Urokodaki, his senior and junior. Afterwards, Tanjiro accepted Makomo's suggestion to train with Sabito during the day and practice breathing techniques under Makomo's guidance at night.
Six months later, Tanjiro and Sabito drew their real swords and began their final duel. Both drew their swords simultaneously and swung at each other, but the battle ended in an instant; Tanjiro severed Sabito's mask with a single blow. Finally, Sabito and Makomo smiled at Tanjiro and then vanished. When Tanjiro came to his senses, he found that Sabito's mask, which he should have severed, was gone, replaced by a boulder split in two.
After witnessing Tanjiro break the boulder, his master fulfilled his promise and agreed to let Tanjiro participate in the Final Selection. During dinner, his master told Tanjiro that he initially didn't want Tanjiro to participate, as he didn't want to see any more children die needlessly because of his past "negligence." However, after seeing Tanjiro successfully break the boulder through his own efforts, his master acknowledged Tanjiro's growth and affirmed that he was now qualified to participate in the Final Selection. After dinner, his master gave Tanjiro a Warding Fox Mask to ward off misfortune and ensure his safety.
Before setting off, Tanjiro learned from his Sakonji Urokodaki that the enemy who killed his family and turned his sister into a demon could only be the original demon— Muzan Kibutsuji.
Soon after, Tanjiro went to Mount Fujikasane to participate in the "Final Selection" to join the Demon Slayer Corps —to spend seven days there, imprisoning Mount Fujikasane, and survive. During this time, Tanjiro encountered the Hand Demon, who had fought Sakonji Urokodaki 47 years prior, was defeated, and sealed away on Mount Fujikasane. Driven by hatred, the Hand Demon relentlessly searched for and killed Sakonji Urokodaki's disciples wearing fox masks in the Final Selection training grounds. In the battle with the Hand Demon, Tanjiro learned that thirteen of Sakonji Urokodaki's disciples, including Sabito and Makomo, had been killed by the Hand Demon. Due to his emotional breakdown and breathing difficulties, Tanjiro was knocked unconscious by the Hand Demon and nearly killed. However, he was awakened by the spirit of his younger brother, Shigeru, and, regaining his composure, slew the Hand Demon with his honed swordsmanship.
Sensing the Hand Demon's sorrow, Tanjiro grasped Hand Demon hand and prayed that if there were an afterlife, the Inosuke Hashibira Hand Demon would not be reborn as a demon. Tanjiro successfully survived the seven days, becoming one of only five Zenitsu Agatsuma, Kanao Tsuyuri, Genya Shinazugawa— to pass the Final Selection and qualify as qualified students. After the selection, Tanjiro received a messenger Kasugai Crow from the two examiners of the Ubuyashiki Family.