kimetsu no yaiba - demon slayer

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, 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.

All demons do regain their memories moments before they die, which possibly means that demons also have their lives flash before their eyes before they turn into complete ash.

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.

their leader is muzan kibutsuji

Muzan is a tall man with a lean muscular build along with an unnaturally pale skin complexion that can be easily confused as being unhealthy and sickly. He has curly black hair and sharp, almond-shaped eyes. His irises are plum red with black, vertical cat-like pupils along with visible cracks around the pupils. He also possesses sharp, blue nails that fades into light blue on his hands. Physically, he appears to be in his twenties.

muzan is the Demon King, the progenitor of all other demons in existence, and the leader of the Twelve upper moons, an organization made up of the twelve strongest demons under his direct command.

A millennium ago during the Heian Era, Muzan was turned into a demon from an experimental treatment for his terminal illness when he was a sick human, when he became the first demon his goal ever since then has been to live without the fear of death and become truly eternal, He plans to accomplish this in two ways: finding the Blue Spider Lily or creating more demons in hopes that one day, one of them will eventually be able to conquer his weakness of sunlight.

Muzan is also of the same bloodline as the Ubuyashiki Family.

Muzan is cold-hearted, ruthless, intimidating, and exceptionally intelligent. He sees no value in any humans he has encountered and shows little value in his own subordinates. Rarely ever visibly upset or happy, he appears completely monotone and detached on most occasions, even when he callously murders his own subordinates. The only times he ever shows emotion are when his vision of perfection is moving forward or when he has subordinates completely submit to his will. Initially, his expressions would only change slightly and only bear a slight shift from his usual calm attitude and his tone of voice tends to be consistent at nearly all times, accentuating his monotonous demeanor. His cruel and imposing nature has gained him the great admiration and fear of many demons.

The Infinity Castle is a pocket dimension that is muzan's and the 12 upper moons stronghold, it consists of lamplit wooden rooms, long halls, and moving corridors. It possesses a warped direction of gravity, allowing demons to stand upright, upside down, or perpendicularly on the walls, or move in physically impossible directions. Its unusual structure and layout as Nakime's Blood Demon Art allows any structure within to shift at her will, though the castle additionally also seems to move on its own.

Using her biwa, the upper moon 4, nakime, can manipulate the position of any demon inside and take them to any location in her range.

Only certain demons seem to be aware of the Infinity Castle's existence, as Akaza did not have any difficulty traversing across the dimension, making use of its unusual gravity and shifting room to make his way across, whereas the Lower Ranks during their gathering with Muzan were completely out of their element; when one of the lesser ranks attempted to escape Muzan attempting to kill him, no matter far and how quickly he ran, he remained trapped within the same area of the Infinity Castle

Due to its unusual warped gravity, impossible structures can be formed within the Infinity Castle. During Akaza's path to the Upper Rank meeting, he fell hundreds of stories past the warped corridors and halls and flew past a large and ornate water garden palace, only to "fall" further past, reaching what seemed to be the bottom and landing onto the floor. This was then revealed to be a wall that was formed in the direction of the shifting columns below him and he was then taken high above the columns and past the ceiling through opening doors, coming across a large maze-like area filled with towering pillars.

if nakime is killed, the infinite castle will collapse

the ranks of demon slayers are Mizunoto → Mizunoe → Kanoto → Kanoe → Tsuchinoto → pillar, with mizunoto being the lowest rank and tsuchinoto and pillar being the highest

demons are unranked except the 12 moons

The Demon Slayer Corps is an organization dedicated to hunting and killing demons. Most members of the Demon Slayer Corps are combatants, known as Demon Slayers.

As the Demon Slayer Corps isn't officially recognized by the government, its members are forced to work in secrecy, which means that Demon Slayers cannot openly carry their swords in public. The majority of people are unaware of the existence of demons, and even if Demon Slayers were to reveal the truth about their job, they would be met with skepticism and disbelief from most individuals. Allowing Demon Slayers to openly wield swords would only incite chaos and confusion among the general population. By maintaining a low profile and avoid drawing unnecessary attention, they can carry out their duties covertly and effectively, Nevertheless, whispers of the Demon Slayers have permeated public consciousness, existing as mere folklore in the minds of some. However, when civilians encounter demons or witness a Demon Slayer engaging a demon firsthand, they come face-to-face with the reality of their existence and the truth behind the tales they've heard.

Without any support from the government or other sponsors, the Demon Slayer Corps relies solely on the resources provided by the Ubuyashiki family for its daily operations

during the Sengoku era, the tides turned. A talented swordsman named Yoriichi Tsugikuni joined the Corps after his wife was slain by a demon. He imparted his knowledge of Total Concentration Breathing onto the Hashira of the Demon Slayer Corps. He also endeavored to teach them a Breathing Style known as Sun Breathing, but despite their efforts, none of them could match Yoriichi's level of mastery, so he modified the techniques to suit their individual strengths. These modifications formed the foundation of the first Breathing Styles, from which numerous other styles emerged as branches

they were founded by the ubuyashiki family after muzan became the very first demon

The Ubuyashiki family are the founders and current management of the Demon Slayer Corps, an organization devoted to defending humanity from the threat of demons. Due to their long history and ingrained traditions, the Ubuyashiki family represents authority and knowledge. They have the knowledge of the many demons the Corps face and of tactics and equipment needed in battle. They are the ones who coordinate and supervise the front-line Demon Slayers.

The family never had a bodyguard of any sort throughout their history

The Ubuyashiki family is a renowned and historical lineage. In a distant past, thousands of years ago, they are related to Muzan Kibutsuji, the progenitor of demons. Because their bloodline produced the first demon, the Ubuyashiki Family was cursed, and every male child born in the family would be born with a disease that would kill them before they were fully grown. The disease consists a burn-like skin condition that will eventually cover their entire body and shorten their lifespan.

Wanting to get rid of the curse, the members of the Ubuyashiki Family visited a priest, who told them that the male heirs should marry a woman picked by a priest. This seemed to work, as the Ubuyashiki male children managed to survive into adulthood, although they were still plagued by illness and died in early adulthood. The priest also told them that they should make it their life goal to kill Muzan, as the curse will endure until they eliminate the evil and cleanse the stain in their lineage. Therefore, they were the ones who devised the idea to establish the Demon Slayer Corps to end the evil and free themselves from the darkness that demons have unleashed. The male members take on the role of Oyakata, serving as the head of the organization.

Throughout the centuries, the Ubuyashiki family has left an enduring imprint by remaining steadfast in their resolve to exterminate demons and defend humanity despite the burden of leadership.

Breathing Styles are swordsmanship styles that makes use of an esoteric breathing technique known as Total Concentration Breathing, and are practiced and taught by members of the Demon Slayer Corps to be used in combat

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,[1] 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). In any case, these new creations always branch out of the five fundamental Breathing Styles. Many of them are personal creations limited to only one user due to a trait or combat style unique to them, but there are cases when branching Breathing Styles have found usage from other Demon Slayers aside from their creators. In both cases, the users are pillar-level Demon Slayers or at least highly-skilled and competent. When utilizing a Breathing Style, users automatically visualize themselves manipulating the concept 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.

Hashira is the highest rank that 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 slayers

Each time a demon devours a human, they become stronger, and they can eventually become powerful enough to develop unique supernatural abilities known as Blood Demon Arts. Blood Demon Arts are different from demon to demon, with every power seemingly based on a central theme (i.e. martial arts, sleep, the sea). Most, if not all, Blood Demon Arts are based on a demon's past, personality, ideals, interests, and/or occupation. Moreover, Blood Demon Arts may not have a singular usage, and instead grant multiple abilities under the same concept or theme. As suggested by its name, all supernatural phenomena and effects use their wielders' blood as a medium to manifest themselves in reality. Essentially, Blood Demon Arts are blood magic.

The abilities and effects granted through Blood Demon Arts can vary greatly. Some can be combat-orientated (i.e. creating dozens of blades) or more supplementary and practical (i.e. controlling a fortress, manifesting illusions). Others are more simple and recognizable (i.e. manipulating electricity and ice), while others still are more complex and unorthodox (i.e. creating invisible arrows that control a person's vector, controlling one's biology), thus making the abilities of demon-kind extremely versatile and powerful.

Gyomei is a hulking figure among the Demon Slayers and easily towering over his fellow pillar-rank demon slayers, He is a powerfully built, extremely muscular man, with a slightly tanned skin tone. He has a medium, spiky, black hair that is shaved along the sides of his head and a prominent scar running horizontally across his forehead. Having been blind since childhood, he has white eyes with no visible irises or pupils. His eyes frequently tear-up when he gets emotional.

Gyomei wears a standard black Demon Slayer Corps uniform, tinted grayish black in the anime. His uniform consists of a button-up jacket with a stand-up collar and long sleeves, featuring gold buttons, a shirt pocket on the left breast, and the kanji for Destroy engraved on the back of the uniform. However, Gyomei’s jacket is heavily customized—it is worn unbuttoned at the top to expose his chest, with only the last button fastened, and the sleeves of his jacket and undershirt are rolled up. His uniform is secured at the waist with the standard white belt and paired of matching tattsuke-hakama pants. Beneath the uniform, he wears a purple kimono, complete with a prominent white yuban collar. Around his lower legs, he wears a white bandages wrapped around his shins in place of traditional kyahan. For footwear, Gyomei wears white zōri sandals with gray straps, notably without tabi socks. Draped over his shoulders is a distinct olive-green happi, which features religious iconography. The collared frame of the happi bears the kanji for the Japanese Nianfo/Shin Buddha chant from the top-down, along with the separate kanji all over at the back. Around his neck, he sports a large red-beaded necklace and carries a set of red ojuzu beads when not in battle.

gyomei is the stone pillar

Gyomei embodies the gentle giant archetype, being surprisingly soft-spoken and sensitive, despite his outwardly intimidating appearance. He is also shown to be quite pious, carrying his prayer beads at all times and offering prayers in poignant situations. Most notably, Gyomei easily cries over the most insignificant things, accentuating his rather soft nature. This could be due to his love for all living creatures brought about by his religious upbringing, and insinuated when he felt so disgusted by beating up a demon that he would never forget that feeling for the rest of his life.

Like the rest of the pillars, Gyomei has a great deal of respect for Kagaya Ubuyashiki, of which no small part was due to the Oyakata saving his life. He is also one of the most respected individuals among the Demon Slayer Corps, not only due to being a member of the Hashira but because he serves as a symbol of hope due to his immense strength: Shinobu Kocho had once stated that when Gyomei fights, it puts everyone around him at ease, Furthermore, Gyomei serves as a leader for them, as seen when he sat at the front during pillar meetings and was often looked to for his word and opinion.

As a pillar of the Demon Slayer Corps, Gyomei is a very powerful and skilled combatant, He is stated by both Tanjiro Kamado and Inosuke Hashibira to be the strongest Demon Slayer in the entire Demon Slayer Corps, Additionally, Tengen Uzui had once described Gyomei as a "complete enigma" which can either refer to his incredible physical prowess or his tremendous skill despite his blindness

Stone Breathing, A Breathing Style Gyomei either mastered himself or learned from a cultivator. In his own version of this Breathing Style, Gyomei incorporates his superhuman sense of hearing and physical strength to utilize a spiked flail and axe to use its techniques. As the Stone pillar, Gyomei is his generation's most skilled Stone Breathing user

Shinobu was a petite, young woman with a slender build and a fairly pale complexion. She had large eyes that lack pupils, only a haze of gradient purple, making her eyes appear similar to those of insects, and rose pink lips. She had a raven-black wavy hair that fades into a dark purple hue at the ends, styled at the back of her head into a flat yakai-maki bun fastened with a white butterfly ornament with a light purple rimmed, along with turquoise speckled spots. She had a center-split, ear-length, voluminous curtain bangs that flow down to frame the sides of her face, with two slightly thinner chin-length locks of hair in front of her ears below them.

She stands out among the more physically imposing pillars due to her diminutive stature and small frame, which is later reinforced by her mentioning that she does not possess enough physical strength to decapitate a strong demon as the others do. According to Zenitsu Agatsuma, Shinobu is so cute that she could make a living on her looks alone.

Shinobu wore a dark purple-tinted variation of the standard Demon Slayer uniform. It consists of a button-up jacket with a stand-up collar and long sleeves, featuring gold buttons and a shirt pocket on the left breast, with the kanji for Destroy engraved on the back of the uniform. Beneath the jacket, she wore a white long-sleeved collared undershirt. Her long, saggy tattsuke-hakama pants are also tinted dark purple and are fastened at the waist with a white belt. Her legs were wrapped with a pair of unique white kyahan—with butterfly-patterned design—that fades from pale turquoise to pink gradient around the lower legs, and tied securely with white ribbons. Her tabi socks match the dark purple color of her uniform. Over her uniform, she wore a distinctive white haori that once belonged to her late older sister Kanae. The haori features a butterfly wing pattern inspired by the Monarch Butterfly, with a color gradient that fades from white into pale turquoise

shes the insect pillar, that therefore she uses the insect's breathing

Shinobu displayed a bright, friendly and cheerful demeanor, always having an easygoing smile on her face regardless of the situation she is in. However, her outward behavior is shown very quickly to be a façade. This is displayed in the way she enjoys teasing others, to the point of being rather sardonic about it, enjoying most notably to pick on Giyu Tomioka, Despite her relaxed exterior and her initial claim of wanting to get along with demons, she can be rather cruel towards them

She also showed to be very strict when she needed to, as she scolding Inosuke when he breaks the window.

It is later revealed that Shinobu's outwardly calm and tranquil disposition is worn as a mask, as she holds an intense hatred for demons due to the loss of her beloved sister Kanae at a young age, along with the deaths of her parents, almost all of her Tsuguko, and the families of her apprentices at the Butterfly Mansion. This hatred is so strong that she is in a near-constant state of extreme anger, which is sensed by Tanjiro when the two held a conversation

her house is the butterfly mansion, The manor is often used as a recovery base for injured Demon Slayers, The majority of healing at the mansion is done by Shinobu Kocho, though there are also attendants known as Kakushi who run errands and assist in watching over the injured. On top of this, there are others who live in the mansion that are not Demon Slayers, but offer training regiments to facilitate the recovery process and help the injured Demon Slayers reach top condition again.

Mitsuri is a curvaceous young woman of pale skin complexion, whose slender, graceful build belies her deceptive muscular strength. She stands slightly taller than average. She has large round, pale green eyes with long black eyelashes and many notable white sparkles reflecting light off of them, a small beauty mark beneath each of them, and light pink lips. Mitsuri has long and visibly thick sakura pink hair that fades into a lime green color at the halfway point, which she wears in three thick braids. She has five shorter, choppy clumps hanging over her face as voluminous bangs, the tips lime green as well. She has been called beautiful and charming on multiple occasions.

At the age of seventeen, Mitsuri once dyed her hair black in an attempt to appear "normal" during her second marriage proposal.

Mitsuri wears a heavily customized version of the standard Demon Slayer Corps uniform, which is black in the manga and tinted light plum in the anime. Her outfit consists of a tight-fitting button-up jacket with a stand-up collar and long sleeves, featuring gold buttons and a shirt pocket on the left breast, with the kanji for Destroy engraved on the back of the uniform. Beneath this, she wears a white long-sleeved collared undershirt. Due to the snug fit of her uniform, both the chest area of the jacket and her undershirt are left unbuttoned and open, exposing her cleavage. Instead of the standard tattsuke-hakama pants, Mitsuri wears a short pleated mini-skirt, maintaining the color and fabric style of her uniform. Her waist is fastened with the standard white belt. Over her uniform, she wears a plain white haori—a gift given to her by Kyojuro Rengoku, the Flame Hashira and her mentor, For legwear, she dons a pair of lime green thigh-high stockings with vertical stripes and teal cuffs at the top. These were a gift from Obanai Iguro, the Serpent Hashira. Her footwear consists of white zōri sandals with pink straps, tied at the front in decorative bows.

mitsuri is the love pillar, and she uses her respective Breathing style

Mitsuri is a very emotional, passionate, and jovial individual who constantly compliments and swoons over her comrades in her head, likely a contributing factor towards her nickname as "the pillar of Love." Although she can be shy and is easily flustered, she is shown to be a very kind and caring person, always showing others her love as befits her Hashira title.

Besides her rather emotional personality, Mitsuri can come off as somewhat childlike at times and prone to exaggerated over-reactions.

Given her desperation for marriage, Mitsuri decided to become a member of the Corps with the purpose of finding a suitable husband stronger than her, a rather difficult task given the astounding level of her physical strength, Upon joining the Demon Slayer Corps, she was happy, enjoying her time being praised and being with her senior or junior colleagues. However, as her colleagues died one after another, she couldn't help but tremble in anger and sadness at times, She felt an immense amount of guilt for her reasoning behind becoming a Demon Slayer to the point where she ate much less than her typical meals. However, she was able to move past those feelings with the help of Shinobu Kocho and Obanai Iguro

Despite her gentle demeanor, Mitsuri will show no mercy in the face of demons

As a pillar of the Demon Slayer Corps, Mitsuri is a very powerful and skilled combatant, She is said to have completed the Final Selection to become a slayer within a mere six months of training, which Kyojuro Rengoku considers outstanding

Obanai is a young man of short stature, pale skin complexion, and a lean, muscular build. He has straight-edged raven-black hair of varying lengths, the longest reaching down to his shoulders and the shortest stopping at his cheekbones, which he wears down with two shorter strands hanging between his eyes. His eyes are almond-shaped and tilt upwards on the far sides, and are unique colored due to Obanai possessing heterochromia—his right eye is yellow with an black pupil, and his left eye is teal. He is partially blind, barely able to see out of his right eye.

Obanai's mouth is usually hidden with white bandages over his lower face to hide his large facial scars, which were the result of his family horrifically cutting open his mouth to resemble that of a snake's gape

Obanai wears the standard Demon Slayer Corps uniform, which is black in the manga and tinted a deep koamaru color in the anime. The uniform consists of a button-up jacket with a stand-up collar and long sleeves, adorned with gold buttons, a shirt pocket on the left breast, and the kanji for Destroy engraved on the back of the uniform. Beneath the jacket, he wears a white long-sleeved collared undershirt. The uniform is fastened at the waist with a white belt and paired with traditional tattsuke-hakama pants in the same koamaru hue. Over his uniform, Obanai wears his signature black-and-white vertically striped haori, the hem and cuffs of which are striped horizontal ways rather than vertically, which covers his hands. For legwear, instead of the standard kyahan, Obanai wraps his lower legs in white bandages, giving the visual impression of traditional kyahan wraps. He also wears another set of white bandages around his lower face. His footwear consists of white zōri sandals with purple-blue straps, worn over koamaru-colored tabi socks to match the color tint of his uniform. He is also always seen with his white snake, Kaburamaru, wrapped around his shoulders.

obanai is the serpent pillar

Obanai is a very harsh and strict individual who shows no concern for those who do not abide by the rules of the Demon Slayer Corps. His expectations for his fellow Demon Slayers are quite unrealistic

Obanai's has a devotion to the future of the Demon Slayer Corps, often at others' expense, such as when he ties up lower-ranked Demon Slayers and uses them as obstacles during his pillar Training for relatively petty reasons. He also sees the newer Demon Slayer recruits as weak and incapable of improvement

Obanai has a rather prominent habit of pointing at people with his finger in an accusatory manner while berating them or talking badly about someone.

Despite his merciless personality, there are two people he cares deeply about: Kagaya Ubuyashiki and Mitsuri Kanroji. He has a crush on Mitsuri, as he often lets his feelings shine through by sharing meals with her and giving gifts, such as the signature green socks she wears with her uniform. Obanai seems to let his overprotectiveness of Mitsuri show at times, such as when he threatens Tanjiro for growing too close to her, It was implied that he has a crush on Mitsuri because of her cheerful personality that didn't let any of the hellish training she had gone through to radiate in the slightest. Talking with her also made him forget all the strife and conflict he had encountered during his past and made him feel as if he was an ordinary young man

Obanai is also noted to possess an immense sense of self-loathing due to the fact that he was born to a selfish and immoral clan who would mercilessly sacrifice even newborn children to a demon for their own monetary gain. Obanai considers himself and his family so tainted that years after they were killed, he still felt as if his family were digging their nails into his skin to make sure he couldn't go anywhere

Kyojuro was a young man of tall stature and lean-muscular build, with fair skin. He had long bright yellow hair with red streaks akin to flames along with two shoulder-length bangs, two chin-length bangs on the side of his head, and wears a messily tied back behind his head. He had black forked eyebrows, and golden eyes that fade to red with white pupils. He was known to be charismatic and had an air of great optimism, having an enthusiastic smile plastered on his face nearly all the time.

Kyojuro wore the standard Demon Slayer Corps uniform, which is black in the manga and tinted a deep brown in the anime. It consisted of a brown button-up jacket with a stand-up collar and long sleeves, featuring gold buttons and a shirt pocket on the left breast, with the kanji for Destroy engraved on the back of the uniform. Beneath the jacket, he wore a white long-sleeved collared undershirt. His uniform was fastened with a white belt at the waist and included traditional tattsuke-hakama pants of matching color. Over this, Kyojuro wore a striking haori on his shoulders, with a white-to-yellow gradient and vivid red flame-like ridges at the end. This haori originally belonged to his father, Shinjuro Rengoku, and was more than likely worn by him when he served as the Flame Hashira before Kyojuro inherited the role. For legwear, he wore a pair of red kyahan decorated with yellow flame motifs rising from the bottom up, pale brown tabi socks, and a pair of white zōri sandals with red straps.

rengoku is the flame pillar, therefore he uses the fire Breathing style

Kyojuro was greatly enthusiastic in regard to his duties as a pillar, and often came across as cheerfully eccentric. He was amiable, pure of heart, and boasted extraordinary technique and swordsmanship stemming from strict practice and discipline. He was an honorable warrior who adhered to his code of morals and principles that was instilled into him by his mother at a young age; the most significant being his belief that those who were born strong have a duty to protect the weak.

Kyojuro also loved his family immensely, displaying great respect and worry towards his father, Shinjuro Rengoku, despite him growing slowly more aggressive and apathetic towards Kyojuro. He was incredibly encouraging and optimistic towards his little brother, Senjuro Rengoku, believing in him and wishing him the best no matter what. This was further accentuated during his death where his final words for his father and his little brother were "take care of your body" and "follow your dreams no matter what". Kyojuro also believed that if someone lacks immense skill, their hard work towards their dreams and desire to help people doesn't count for nothing.

Beneath his enthusiastic demeanor, Kyojuro was very logical and tactically intelligent, acting quickly and precisely in battle, especially when the lives of others are on the line. Kyojuro was also great in seeing talent in others

Kokushibo is a tall man with a muscular build and a pale complexion. He possesses long, spiky black hair with red tips, that he keeps in a ponytail. His most notable feature is the three sets of eyes on his face with yellow irises and red flesh sclera that have black straight lines diverging from each iris. His middle set of eyes has the kanji of "Upper Rank" on engraved on his left eye, and daiji for "One" on his right, while his other sets of eyes feature black pupils and a cracked pattern in the irises. His top set of eyes replaced his eyebrows. Kokushibo also has red markings resembling flames on the top left side of his forehead and the bottom right of his chin. His appearance is described as profoundly majestic and dignified by Muichiro Tokito.

Kokushibo wears a purple-and-black hexagonal-patterned nagagi kimono and black umanori-styled hakama pants tied with a white uwa-obi, with pair of zōri with purple straps and white tabi socks. He carries a fleshy katana at his waist that, has eyes in the space between the tsuka ito wrapping of the handle of his sword. The tsuba and blade are shown to have eyes and veins. The scabbard is also fleshy in appearance.

Nearly five centuries ago during the Sengoku Era, Kokushibo was a human by the name of Michikatsu Tsugikuni, a former Demon Slayer and the older twin brother of Yoriichi Tsugikuni, the strongest Demon Slayer to ever live.

Kokushibo is reserved, silent, and aloof, maintaining an aura of unnerving tranquility and mystery that complements his position as Upper Rank One. He rarely speaks; when he does, he talks in a slow and emphatic manner that gives more gravitas and authority to his words. He is an adamant rule-follower and punctual, and he shows a great deal of respect to the hierarchy of the Twelve moons, as seen at the Upper Rank gathering, Kokushibo is shown to be humble as well, and he did not hesitate to admit his failure or complain of any difficulty.

He demonstrates unwavering loyalty towards Muzan Kibutsuji as he carries out his actions solely to fulfill Muzan's objectives. Despite his outward display of reservation, dignity, and humility, there exists a cold and unforgiving side to his personality. When reprimanding individuals, his words can be harsh, bordering on cruelty. His threats are severe and demand absolute obedience.

Kokushibo is shown to be genuinely delighted when the opponents he faced challenged him

Having abandoned his humanity in the pursuit of strength, he shows a scornful view on humans

He possesses a complex relationship with his human past. It is revealed that, as a human, Kokushibo, then Michikatsu, pitied Yoriichi during the period of time when he was mute, viewing him as a meek and callow boy dependent on his mother. He gifted him a flute to use when he needed his brother, and smiled at him despite being bruised from his father's beatings. However, he later harbored an immense sense of envy towards his younger twin brother for his natural talent and incredible abilities. These feelings of jealousy and contempt only became stronger upon seeing his brother become a peerless warrior of unmatched caliber among even the Demon Slayers

Doma is a tall young man with a lean, muscular build. He is of extremely pale complexion and possesses long, pointed nails that appeared to be stained with a pale purple. He possesses long platinum blond hair that he wore parted to his right, the shorter parts around his face seeming to flare out to either side around his head, curving backwards with one lock slanting down to the right of his face to fall between his eyes, while the longer parts were left to drape centrally down his back in a thinning spiral. Due to his beauty, he was made a cult leader and seen as a divine being due to such.

His eyes have been described to be incredibly rare and beautiful as in color, they appeared to be made up of an array of rainbow pastel tones that fade into one another as they circle his irises, this unusual appearance even causing people to believe Doma is a blessed being who could communicate with the gods. The kanji for Upper Rank is etched across his left eye, and the daiji for Two or Six at the time when he first met Gyutaro and Daki on his right, with thick eyelashes and a set of notably thick black eyebrows acting to frame them above.

Doma wore a blood-red turtleneck of a design that made it appear that the section between his neck and upper chest is covered by a black substance that looks like it's dripping slightly down his body, this same design repeated at his wrists and down his hands, as well as on the small, circular "blood stain" he adorned on his head. Below this, he wore a pair of straight, tan-colored hakama pants of a pinstriped design, their cuffs visibly loose, which he secured with a pale green-tinged golden belt, its buckle a bright silver. He also only wears plain black tabi socks on his feet.

Over a century ago, Doma held the position of Upper Rank Six before being the rank 2 and during that tenure, he turned Gyutaro and daki into demons and introduced them into the Twelve moons

He is also the leader of the Eternal Paradise Faith, a cult dedicated to worshipping Doma and a place where he listens to all his followers' troubles and gives them advice, He had held this position since he was a human child. It also acts as a place for Doma to gather and kill his victims, This cult also took in Inosuke Hashibira's mother, Kotoha Hashibira, before Doma killed her after she found out that he was eating his followers.

Doma is outwardly friendly and cheery, possessing an approachable and charismatic air. Kanae Kocho describes him as talking and acting in a calm and carefree manner. However, in truth, he has psychopathic tendencies and adopts sick beliefs and habits, such as devouring his cult's followers with the belief he is saving them from their suffering and pain by letting them live inside his body.

Because of his carefree and waggish persona, he was prone to facetious and inappropriate behavior. Even amongst his fellow demons, he was disliked by Muzan Kibutsuji and Akaza for his casual and childish behavior, and indifference to the strict hierarchy that showed complete and total obedience towards the Demon King

Under his carefree and unassuming demeanor that made him appear inane and witless, Doma is a cold and calculating individual with an extremely keen intellect. His high intelligence may be the reason why he looks down on humans, genuinely believing that they are pathetic and pitiful. He even cried out of pity for them.

Doma is clinically agnosic, being completely unable to experience proper emotions. Doma himself admitted that the concept of emotion was completely foreign to him, even as a human.

Akaza was a very muscular young man of average height with skin so fair it appeared bright green-tinged white, decorated by a pattern of thick blue lines, which resembled the criminal tattoos he had as a human. Akaza had short, bright pink hair that fluffed out around his head and inward-tilting yellow eyes with pink eyelashes and blue sclera that somewhat resembled cracked glass. The kanji for Upper Rank was etched into his right iris, and the daiji for Three was etched into his left.

The lines on his face curved through each of his eyes from below his ears to over his temples, another blue line running from the center of his hairline to the bridge of his nose, with two more lines running around his neck, three others branching off the lower one to his torso. The middle line ran directly down his chest to halfway down his stomach, and the other two branched off to the sides over each side of his chest to join the two other lines. This same three-line pattern also repeated around his waist. On his arms, lines were running down the front of his shoulders that ran into two more, which went around his biceps before continuing to run down to his wrists, below which each of his fingers was also dark blue with an orange fingernail. His toes and toenails also sharing this unusual appearance as his fingers and fingernails.

Akaza wore little and only sported a short, sleeveless dark purple-pink haori cut off at his waist, left open to expose his chest, and decorated by a square pattern on his back. Below this, he sported a pair of baggy white pants that he rolled to just below the knee with a turquoise rope belt to secure them at his waist, with bright pink tassel ornaments hanging on the front and the back of the rope belt. Akaza preferred to go barefoot but wore a pair of chains of large, round, pink pearls around his ankles.

Akaza was a headstrong, stubborn, and battle-crazed social Darwinist who enjoyed fighting, especially against strong Demon Slayers. He purposefully drew out fights to savor every moment of it; the Upper Rank tended to become enthralled whenever he was hit by a powerful opponent, not due to masochism but out of a genuine admiration for their skills. Akaza always complimented his opponents when they unleashed powerful techniques or landed blows on him, usually remarking that their techniques and swordsmanship were magnificent and intriguing. Akaza looked down on anybody he deemed weak, so much so that his skin would crawl at the sight of them. He genuinely respected those who were strong in his eyes, demanding to know their names, and would not stop until he found out; he remembered all the names of strong opponents of the past and committed them to memory as a tribute to their strength.

Akaza also presented an opportunity for those he recognized the strength of to become demons, believing that preserving their refined techniques and skill was right and feeling pain watching the deterioration of those blessed with extraordinary gifts as they age, and going so far as to kill them to preserve their magnificent skill himself should they decline his offer to become a demon. He also did not discriminate against strong warriors who were weak before

Akaza had a deeply rooted psychological need to become stronger, and while he usually respected the strong, he did not get along with his fellow Upper Ranks, seeing them as his rivals He was especially antagonistic towards and somewhat jealous of the two Upper Ranks above him, Doma and Kokushibo, lashing out at Doma and vowing to kill Kokushibo

Nakime is a pale woman with a grayish complexion, who has sharp, blue-stained nails and notably dark pink lips which sharply contrasted the tone of her skin. She has glossy, hip-length hair of a black color, which she wore falling down her back in slight waves that cut off sharply at the ends, with two chin-length strands left to frame her face and long bangs that obscured her large eye set in between them, swept to either side of her nose.

Nakime dons a plain-loose black kimono with a white loose yuban underneath, secured with a striped pale brown-striped obi, white socks and no shoes or clogs. She was always seen holding a four-stringed wooden biwa with a large bachi pick.

Since becoming an Upper Rank, Nakime took to wearing her bangs as to not obscure her face, showing that she possessed a single large, pink-colored eye with the daiji for "Four" engraved into its iris. The upper portion of her face was also revealed, and appeared to be a darker gray color than the rest of her pale skin with prominent veins surrounding her one eye. In addition, her hair would grow extensively and resembles roots on a nearby wall.

nakime is the upper moon 4 and the one who created and manipulates the infinite castle via her blood demon art

Unlike most demons, Nakime was not particularly violent or sadistic, and instead is aloof and taciturn, almost never speaking and displaying little to no emotion or will outside of obeying orders. She was extremely loyal to Muzan, listening and following his every order faultlessly, something he appreciated; in fact, her unwavering loyalty to him marks one of the very few instances Muzan ever complimented an individual, though it seemed more likely that he was satisfied to have a powerful tool to use at his disposal. Despite this outwardly one-sided relationship, Nakime graciously accepted his words and told her master she was honored to be of great use to him.

She showed little interaction with other demons and seems to be mostly disinterested in their presence, in the Upper moons Meeting later on, she only speaks during two instances; answering Akaza's queries and rejecting Doma's invitation to be at his temple.

Ironically, she displayed the stereotypical murderous behavior of demons when she was a human. This was shown when she flew into a blind rage and murdered her husband after he lost her favorite kimono while gambling. In addition, after she successfully played her usual Biwa performances following her husband's death, Nakime had a habit of murdering people before performances, because she was anxious and her finger trembled which produced an effect on the strings of the biwa that the audience liked.

Gyokko had a very bizarre and grotesque physiology, taking on the form of a pale white, abstracted, grotesque humanoid figure with a muscular upper torso that has no arms and resembles that of an armless statue growing from a porcelain vase, similar to a djinn. His midsection is a red-violet color while his lower-half, or his tail is black. He had multiple underdeveloped and infant-like hands with red fingernails; four on his head that replaced his ears and were always present, and several lining up his body and tail which he can retract at will. He also possessed thin fins on the top and back of his head that were akin to hair, which were of a blended hue of purple and a blue-violet color and shaped in the style of cornrows and a ponytail.

Gyokko's face was even more distorted, with large green-lipped mouths located where one would expect his eyes sockets to be located, which always displayed his hyperrealistic teeth and sometimes had one of or both of his tongues sticking out, along with a sharp nose. His actual eyes were located vertically from one another on his face; one eye, with honey brown irises and bloodshot, appeared in the constantly open bottom mouth and the other, similarly honey brown with bloodshot, was seated at the center of his forehead. Three brown dots were on top of the latter eye. The kanji for Upper Rank was engraved on his forehead's eye and the daiji for Five was engraved on his mouth's eye. In addition, his twin green mouths are generally expressionless and only move when speaking or eating, while the mouth that displays his lower eye is the one that contorts to display Gyokko's emotions.

gyokko is the upper moon number 5

Gyokko was shown to be an easily excitable demon, constantly fawning over new inspirations for what he deems his "art" or what he finds to be sublime, sometimes even going against his initial impressions. He was easily swayed into euphoria whenever Muzan Kibutsuji was involved, trying not only to please him, but finding joy in being decapitated and having his head held by Muzan

Gyokko was also short-tempered, shallow, and arrogant, especially when it comes to things regarding his "art", as seen when he was easily enraged by Muichiro Tokito when the latter began to insult and make fun of the quality of his art to the point of bleeding from his blood vessels out of sheer fury, and through his conversation with the Hashira, constantly praised himself as "beautiful" and his work even more so, further reinforcing his arrogant and narcissistic personality and even insulting Muichiro as an "ape" for not appreciating his art. His arrogance was most prominently displayed after he was beheaded by Muichiro, referring to the Mist Hashira as an inferior and lower life form while calling himself a superb and chosen being

Gyokko revealed himself to be incredibly petty and jealous

Daki was a tall and curvaceous woman with lime green eyes with a dark orange center, long eyelashes, and very pale skin, complemented by pink lips. Her initially black hair was styled in a full, long ponytail with kanzashi hairpins (three on each side) holding up the ponytail. The kanji for "Upper Rank" was engraved in Daki's left eye and the daiji for "Six" was engraved on the right. Her fingers ended in sharp, dark purple nails. She had a pink obi with black hexagon patterns on all of it, along with light grey blue flower with darker on the center and light orange three length lines on it wrapped around her waist, used as her Blood Demon Art. Her toenails shared the same dark purple color as her fingernails. She sported two pink flower-like demon crests on her face and light purple on the center, one on her cheek and another on her forehead. She also wore a pinkish-red makeup on each sides of the corner of her eyelashes and eyes.

She wore a two-piece version of her kimono consisting of magenta pink panties tied by long, magenta bows on the sides and with two black pieces of cloth with dark magenta flower patterns on the each sides of the cloths that cover her chest with length part than flow reaching her hips. She had black thigh-high stockings with magenta lines on the center of the stocks with the black-flower patterns around them layered with white stockings with one line on each of them and tall, black three-legged sanmaiba/koma-geta or mitsu-ashi shoes.

Over a century ago during the Edo period, Daki was a human child by the name of Ume, who lived in the Rashomon Riverbank of Yoshiwara, the lowest class of the Entertainment District, before she and Gyutaro were turned into demons personally by the former Upper Rank Six Doma, she, along her brother became upper rank six

Daki was a very arrogant, dismissive, and sadistic person, taking enjoyment in toying with her victims before killing them and not showing the slightest bit of guilt or remorse for taking the lives of her victims, She dismissed all non-pillar Demon Slayers as not worth her time

Daki openly expressed how slow the Demon Slayer's techniques were and her boredom, which further showcased her dismissive personality. She even preferred to only eat people that she viewed as beautiful or strong, choosing to kill those who got on her nerves without eating them and leaving their bodies behind, which people often mistook as suicide.

Despite being over a hundred years old, Daki displayed childish and bratty tendencies such as throwing tantrums, crying hysterically when things didn't go her way, and lashing out against anyone to vent her frustrations. Putting her venomous hostility on full display numerous times, she was both verbally and physically abusive towards anybody that displeased her in any way. She was extremely cruel and wicked, pulling on a young girl attendant's ear because she didn't clean up her room

She displayed a spoiled and disdainful demeanor that bordered on sociopathic, harassing many of her fellow workers to the point of suicide, purely because they annoyed or retorted her, all the while showing no traces of guilt. In fact, she deflected the blame onto her victims for offending her. She was so drunk on her standing and infamously violent tendencies that people had to resort to bowing their heads in order to calm her angry outbursts, to which she responded to by putting up a corrected, more polite and affable stance.

Gyutaro was a tall man of fairly muscular build, with a pale gray complexion speckled with black blotches. His anatomy was quite strange in that his upper torso, arms, and legs were all defined with musculature, whereas his waist was incredibly skinny to the point of looking skeletal, with his pelvis jutting out at an unnatural angle. His spine was prominently visible through his back, and he was usually shown being hunched over. Gyutaro possessed thin eyes that were slanted drastically downwards at the sides, giving him a permanently haggard gaze. His miotic irises were green with a dark orange center, and his sclera was a bright yellow-orange with visible veins. The kanji for "Upper Rank" is carved across his right eye, and the daiji for "Six" carved on his left

Gyutaro was cruel, ruthless, petty, and envious of anyone blessed with a better life than him, owing to a life of near-constant poverty and the harsh tragedies he experienced whilst human. He developed a habit of sarcastically complimenting a person's best traits before vindictively killing them afterwards, as he did to the samurai who tried to kill him

Because of the hardships he faced as a human, Gyutaro attained a personal belief that to take from those who have a better life than he had as a human was justified. A habit that developed from this belief was the penchant to inflict harm to himself whenever he was angry, frustrated or jealous, as seen when he scratched himself hard enough to tear deep wounds into his own flesh when he grew jealous of someone A more tragic result of his upbringing was his habit of insulting those he deemed weak and pathetic, using the same demeaning labels given to him as a child.

Having lived over a hundred years and battled many Demon Slayers and pillars, Gyutaro became arrogant and prideful in combat, developing the habit of underestimating his opponents and looking down on them as beneath him, as he did with the team of Demon Slayers dispatched to kill him by having his sister fight and deal with them first rather than himself. He has also showed himself to be intensely sadistic, revelling in the brutalization of the Demon Slayers by horrifically injuring them

Despite his negative traits, Gyutaro possessed a genuine, strong love for his younger sister, daki, Having raised her himself due to his mother's mental instability and later death, this familial love was so strong that, even after becoming a demon and nearly forgetting his life as a human, he still retained a considerable attachment to her. Due to this, he occasionally spoilt and allowed her to do whatever she pleases, even if her actions went against his best interests. When he first exposed himself, he tenderly attended to his sister's cries and injuries