Main Characters | Demon Slayer Corps (Hashira) | Muzan Kibutsuji and the Twelve Kizuki | Civilians | Other Demons
Voiced by: Toshiyuki Morikawa (Japanese), Matthew Mercer (English)
The blind leader of the Demon Slayer Corps and 95th of his line.
- Absurdly Youthful Father: Kagaya is 23 in the present story, and his oldest son is 8, meaning he was 15 when his first son was born. He has two daughters that are older than Kiriya, making him a father at the age of 14, the same age he was married at.
- Big Good: As the leader of the Demon Slayer Corps, he definitely counts.
- Blind Seer: Though he is blind, he has an impeccable sense to predict future events through instinct. This is something that all heads of the Ubuyashiki family develop, and has been used for generations to build the family's wealth and avoid disasters.
- The Dead Have Names: He memorizes the names, faces, and backgrounds of every single Demon Slayer who dies.
- Defiant to the End: He makes sure to talk directly to Muzan's face about what he thinks of him and his dreams before the explosion goes off.
- Emotion Control: Tanjiro realizes that when Ubuyashiki speaks to him, he feels relaxed, uplifted, and much more inclined to do what he says. This ability is so powerful that even Muzan is briefly affected by it.
- A Father to His Men: He is a living saint and adores the Demon Slayers like his own children, treating them like treasured family more so than subordinates.
- The Heart: He's not just the leader of the Demon Slayers, he's their moral center, too.
- Heroic Sacrifice: When he's too sick to live for much longer he uses himself as bait to lure in Muzan Kibutsuji, sacrificing himself, along with his wife and two of his daughters in an explosion to ensnare Muzan and bring in the Hashira to finish Muzan once and for all.
- Ill Boy: Is sickly and isn't expected to live for much longer. Evidently, this actually is a trait within his family where the members are never expected to live long lives, and said to be a curse due to Muzan being related to them, which is why his family formed the Demon Slayer Corps to atone.
- Incurable Cough of Death: The members of the Ubuyashiki family are afflicted with a wasting illness that tends to kill them before they hit 30, and Kagaya is no different.
- Nerves of Steel: The man faces off with the most evil demon alive without a flicker of worry and lures Muzan into a trap, never breaking his composure for an instant while giving him a soft-spoken The Reason You Suck speech on how Muzan will never be able to achieve his goal of finding Nezuko and absorbing her to conquer the sun and how everyone is ready to fight him.
- Nice Guy: Kagaya is one of the kindest men alive. He refuses to treat Nezuko as a monster, is kind to Tanjiro, and loves every member of the Demon Slayer Corps like his own.
- Non-Action Guy: Kagaya has no martial ability whatsoever. He mentions he once tried to wield a sword and couldn't even swing it ten times without feeling like his heart would burst.
- O.O.C. Is Serious Business: Kagaya is kind to a fault, but the only time this drops is when he lays viciously into Muzan with what he truly thinks of the depraved villain.
- Parental Substitute: Later in the series, it is properly explained the relationship between him and the slayers. Early on, Kagaya can be seen calling the hunters children, which eventually is shown that Kagaya means that the slayers are his children since quite many of them are orphaned. He, being the leader of the Demon Slayers, naturally employed a lot of orphaned people with a burning desire to kill demons; the strongest slayers, in particular, the Hashira, are even closer to Kagaya, showing the utmost respect towards him. Two of them, Himejima and Tokitou, outright called Kagaya their second father; financially speaking, Kagaya even shares his vast wealth as a means to pay the slayers. The Hashira can even be considered his heirs to an extent, as Kagaya gave them a good piece of land and a big house to those who are orphans and had no inheritance of their own.
- Perfectly Arranged Marriage: Heads of the Ubuyashiki family have been arranged to marry the daughters of priests from a nearby shrine for generations. Kagaya and his wife Amane are no different and have unconditional love for each other.
- Together in Death: His wife and two eldest daughters choose to die with him in his suicide attack against Muzan
- Wise Beyond Their Years: Kagaya is a man of deep wisdom, far more than befits his age of only twenty-three. He's seen as far wiser and more mature than men many years his senior. The most notable thing is the fact Kagaya managed to make Himejima, whos four years older, consider him, the younger person, to be his father figure.
One of Kagaya's children and the only son.
- Ascended Extra: He first appeared during the Final Selection as the black-haired "girl". He didn't get a significant role since then until he succeeds his father after his Heroic Sacrifice.
- A Child Shall Lead Them: He becomes the leader of the Ubuyashiki family at the tender age of eight.
- Dude Looks Like a Lady: He initially looks not much different from his sisters. However, in later chapters, he appears more masculine. It turns out every boy of the Ubuyashiki family is groomed like a girl until they reach a certain age, most likely to toll down their illness until they are healthy enough to return to their masculinity.
- It's All My Fault: In chapter 181, Kiriya blames himself for not being able to prevent the rookie Demon Slayers from encountering Muzan and briefly gets overwhelmed by fear and doubt. His younger sister slaps his face to snap him out of his overwhelmed state. He then regains his composure and orders all of the Demon Slayers to regroup before thanking both of his younger sisters afterwards.
- Massive Numbered Siblings: He has two older sisters and two younger sisters.
- Not So Stoic: Normally composed and focused, but in chapter 180, he loses his composure when the rookie Demon Slayers suddenly encounter Muzan's cocoon and ordered them to retreat.
- Outnumbered Sibling: He's the only son among Kagaya's children.
- Significant Wardrobe Shift: He changes from his feminine clothing to that of his father, once he succeeded him as the leader of the Demon Slayer Corps.
- Strong Family Resemblance: He looks nearly identical to his sisters, except with black hair.
- Take Up My Sword: Kiriya is given the role of commander of the Demon Slayers after his father self-destructed to weaken Muzan. He takes the job seriously and tells his sister not to cry and not give up while assisting the Demon Slayers in their battle against Muzan and his Demons. Although the extra chapters reveal that he secretly feels saddened for his father.
- Wholesome Crossdresser: In the Volume 6 extras, it was revealed Kiriya is really a boy dressed as a girl. It's because the boys in the Ubuyashiki family are sickly, so they have to raise them as girls until at the age of 13.
- Wise Beyond Their Years: A capable commander and strategist, all at the age of eight years old.
- You Are in Command Now: He becomes the head of the Demon Slayers with the death of his father and elder sisters.
Hashira (AKA "Pillars") are powerful demon slayers and nine of the Demon Slayer Corps' most elite warriors. They answer directly to Kagaya Ubuyashiki.
See here for all tropes regarding them.
Active Demon Slayers
The primary trio of demon slayers from the same selection that often team-up to slay demons.
See here for all tropes regarding them.
Voiced by: Reina Ueda
A young girl who is being trained as a "Tsuguko" (successor) to the Hashira, and is mentored by the Insect Hashira Shinobu Kocho. She partakes in and passes the same Final Selection as Tanjiro does.
- Abusive Parents: Before they sold her, her parents constantly abused her and her siblings, with some of her brothers being killed because of it.
- The Ace: Thanks to being a Tsuguko, Kanao is leagues ahead of Tanjiro and company in terms of training, she is the only member of Tanjiro's selection to be completely unharmed after the seven days. During the Hashira Training Arc, she is the only one Tanjiro didn't eventually catch up with after he started late. The first demon we see her fight is the second most powerful demon (Not counting Muzan) in the entire world.
- Actually Pretty Funny: During the Spider Mountain Incident, she's given the task of exterminating all demons she comes across, including Nezuko, who has been prompted to flee by Tanjiro. While in pursuit of the demon girl, Kanao is surprised at the fact that Nezuko isn't attacking her, and when Nezuko reduces her size to dodge Kanao's attacks, Kanao can't help but smile at the ridiculousness of the whole situation and Nezuko's cuteness.
- Adaptation Dye-Job: Gotouge isnt consistent with giving Kanao the color gradient effect, as she has sometimes been drawn with pink hair tips, but she has also been drawn with just full black hair as well. The anime followed on giving her full black hair.
- Animal Motif: Butterflies like her mentor, Shinobu. She is noted for her extraordinary eyesight, which is similar to butterflies having pronounced color vision. Using Equinoctial Vermilion Eye makes her look even more insect-like.
- Beauty Is Never Tarnished: Subverted. Her fight against Doma leaves her injured, heavily scarred and almost half-blind.
- Because You Were Nice to Me: The reason she starts liking Tanjiro, as he effortlessly broke through the conditioning she had set with the coin flipping she uses to communicate by making her realize that she can just flip the coin to get the answers she wants, and it doesn't have to be a single coin flip, stating that he'll flip the coin as many times as necessary just to talk to her.
- Broken Ace: Kanao was the strongest out of her batch in the Final Selection, being a tsuguko, but because of her Dark and Troubled Past she has difficulty functioning without being told what to do. It isn't until she befriends Tanjiro that she starts breaking out of her chains.
- Child Prodigy: Played with. She's been considered a Tsukugo even before becoming a Demon Slayer, as she's been training under Shinobu since she was very young. However, the main trio catch up to her relatively fast in spite of not receiving constant instruction from a Hashira like she has.
- Dangerous Forbidden Technique: The final form of Flower Breathing: Equinoctial Vermilion Eye, grants Kanao far more pronounced dynamic vision, but has a heavy risk of Kanao going blind from her blood vessels rupturing and the nerves being overclocked. Even using it for a short time leaves her almost blind on her right eye.
- Dark and Troubled Past: Kanao grew up in an abusive household before being sold as a slave. Her mind and emotions stopped functioning to cope with her situation.
- Dull Eyes of Unhappiness: She had dulled eyes as a child, but being rescued by Kanae and Shinobu brought back the shine in her eyes.
- Emotionless Girl: As a child, the trauma that she had gone through left her in a state void of emotions. Even after being rescued by Kanae and Shinobu, she still couldn't act on her own will and had to use a coin given by Kanae to make decisions. Her conversations with Tanjiro helped her recover from her emotionless state, and she can fully express her emotions, later on not having to rely on the coin anymore.
- Family of Choice: She considers the Kochou sisters to be her family, introducing herself as their little sister.
- Foil: To Doma. Both of them had lacked the capacity to feel emotions growing up, Kanao due to her Dark and Troubled Past: born into an abusive household before being adopted by Kanae and Shinobu, while Doma was physically incapable of feeling them despite being born to parents that spoil him and even start a religion based on him. Both of them started feeling emotions after they fell in love with someone, Kanao with Tanjirou, Doma with Shinobu in his final moments. Their fight against each other showcases just how much Kanao has changed since she met Tanjiro.
- Hair Decorations: She wears a butterfly-shaped hairclip to hold up her side ponytail. It originally belonged to Kanae Kocho before she died, and Kanao wears it as a Tragic Keepsake. During her fight with Douma, it gets broken and she later replaces it with Shinobu's butterfly hairclip after Shinobu's own death at Douma's hands.
- Heads or Tails?: Up until meeting Tanjiro, she makes decisions by flipping a coin if she is not given instructions on what to do.
- I Just Want to Have Friends: During her Day in the Limelight in the anime, she is shown to be watching Tanjiro, Zenitsu, and Inosuke train to master Full Focus Concentration Breathing at a distance. When Shinobu nudges her to join in, she just flips her coin and walks away, looking disappointed in the result. During the fight with Doma, it's shown that even with the little contact they've had, she considers Tanjiro, Zenitsu, Inosuke, and Genya as her dear friends.
- It's Personal: Kanao doesn't have anything against demons, only slaying them because it is expected of her as Shinobu's successor. However, her fight against Upper-2 Doma is the first time where she truly has something at stake, due to the demon-killing Shinobu right in front of her and having killed her other sister figure Kanae in the past. Kanao comments that this is the first time in her life she felt a strong hatred for anybody.
- Made a Slave: Her parents sold her into slavery, presumably because they were so dirt poor they would do anything for money. Luckily, she was freed by Shinobu and her sister not long after she was sold.
- Multicolored Hair: Much later into the manga, after consistently drawing Kanao with fully black hair Gotouge then decided to make Kanao join the league of special colored black hairstyles as well, in a color illustration for the fight against Douma she was given pink hair tips, also used in a promotional sticker for Jump GIGA. However, this change to Kanao's hair wasn't retroactively put into motion for the animated adaptation, which kept Kanao's hair fully black as it used to be.
- Not Used to Freedom: Kanao was sold as a slave from a very young age, which turned her into an Emotionless Girl who will not do anything unless told to. Even after she was freed and became a hunter, if she received no orders, she would rely on a coin toss to make decisions. It took Tanjiro's intervention for her heart to start opening up again.
- Out of Focus: Compared to all the other people from Tanjiro's selection, Kanao has the least amount of screen time and interactions. The first time we even see her fight a demon (sans Nezuko) is well after she had been fully introduced. Slightly justified as she's a Tsuguko, and therefore is not in a position where she's often out on the field.
- Petal Power: Kanao managed to become a Flower Breath adept like Kanae, unlike Shinobu, who became an Insect Breath adept, a direct offshoot from the Flower Breath.
- Pink Means Feminine: Kanao's Nichirin Sword is pink.
- Puppy Love: She harbors a very subtle and tender attraction towards Tanjiro, and is always silently joyful of being at his side to the point of childishness. She's like a little girl in love.
- The Quiet One: Kanao has communication problems and is somewhat absentminded, so she sometimes creates problems and extra work for the people that work at the Butterfly Mansion because she's just too quiet.
- Rags to Riches: Kanao came from an extremely poor and abusive family; her parents literally threw her out and sold her off as a slave. However, she got rescued by Kanae Kochou and Shinobu Kochou before Kanaos life as a slave could actually begin. The Kocho sisters came from a well off family, and even after being orphaned, they became Demon Slayers under the very wealthy Ubuyashiki estate. Under Ubuyashiki, the Kocho Mansion was kept well maintained by their earnings from demon slaying; Kanao is registered as the youngest sister of both Kocho girls, enjoying a resourceful life as a member of the Kocho family.
- "The Reason You Suck" Speech: Delivers one towards Doma after his "mourning" over the death of Akaza, telling him that she's able to see through his faked emotions because he actually can't feel anything from joy to sadness, (while other people can) and wonder about the reason for his existence.
- Ship Tease: A flashback has Kanae stating that Kanao can change if she can find a guy she likes. An image of Tanjiro is shown when she said this.
- Slipknot Ponytail: When Doma launched a bigger attack against Inosuke and Kanao, it breaks her hairpin apart and undoes her ponytail.
- Super Senses: Her eyesight is supernaturally good, able to pick out even the most subtle changes on a person's face.
- Superior Successor: When fighting her, Doma realizes that Kanao is actually stronger than her Hashira sister, Shinobu.
- Tragic Keepsake: Her butterfly hairpin was previously Kanae's before she was killed by Doma. The tragedy is doubled when Shinobu herself dies, and Kanao's hairpin is destroyed in the fight against Doma. Kanao gets Shinobu's hairpin from that event after Doma is killed.
- Unable to Cry: Chapter 163 reveals that Kanao was unable to cry because of her harsh childhood, which troubled her greatly when she was unable to cry when Kanae died. But after encouragement from the spirits of Kanae and Shinobu, she is finally able to cry and express her emotions. The next chapter, 164, shows both Kanao and Inosuke letting their tears run after a long and emotional battle.
Voiced by: Kouki Miyata
One of the rookie Demon Slayers and a friend of Tanjiro.
- Butt-Monkey: He always ends up in situations that are troublesome like getting his clothes melted off by the spider demons, being mocked by Yushiro while fighting some of Muzan's demons, and getting his hair pulled by an injured Zenitsu who is freaking out about the fortress collapsing in chapter 183.
- Making a Splash: Murata utilizes the Breath of Water, but isn't at Tanjiro or Giyuu's level of proficiency at it as he lacks the water visuals they have and his Nichirin Blade's color is plain.
- Mauve Shirt: He's just a regular member of the Demon Slayer Corps, and while he does get more screentime than others of his rank, he still remains a minor character.
- Nice Guy: He's a very kind young man and easily befriends Tanjiro and the other heroes. He even compliments Tanjiro's cooking skills during their training with Himejima and shows great concern and care for an injured Zenitsu.
- Ridiculously Average Guy: He managed to survive Demon Slayer training, but his strength in battle is quite average in comparison to the others. In the battle against Muzan, Murata has a hard time trying to attack the neck of a rather big demon. It was revealed in Volume 17's extras that he is a Breath of Water user, but Murata is seemly so weak that his moves don't even produce the visual effects for water like Tanjiro and Giyuu do.
- Running Gag: Murata becomes enraged when he assumes a fellow demon slayer is ordering him around or talking back to him. Murata immediately yells at the supposed disrespectful fellow asking for their rank, implying that he will only accept orders from a slayer who ranks above him; with Tanjiro & friends, however, Murata mellowed out as he saw how really helpful they were in the Nagatumo Mountain event. Murata grows to admire them and see them as friends.
- Suddenly SHOUTING!: Upon hearing Yushiro's analysis of Zenitsu's condition, he yells at him to stop being so negative towards Zenitsu and even tries to cheer up Zentisu by encouraging him to survive. All of his yelling, along with the other rookies, ends up attracting the attention of Muzan's demons.
Inactive Demon Slayers
Voiced by: Nobuhiko Okamoto (Japanese), Zeno Robinson (English)
A Demon Slayer who took and passed the same entrance exam as Tanjiro. He seems to have some connection to the Wind Hashira, who shares his surname.
- Adaptation Dye-Job: Gotouge isnt consistent with giving Genya the color gradient effect. He has sometimes been drawn with yellow hair tips, but he has also been drawn with just full black hair as well. The anime followed on giving him full black hair.
- An Arm and a Leg: In an attempt to save Muichiro, he gets both of his arms cut off and his torso bisected by Kokushibou before being saved by his brother Sanemi. He gets put back together by eating a piece of Kokushibou's hair with the help of Muichiro.
- Cannot Talk to Women: Genya is shown nervously blushing when Mitsuri hugs everyone after surviving the battle at the swordsmith village in chapter 127. On the cover page of chapter 129, Genya is shown blushing and politely declining to be fed by the Butterfly Estate girls. This is probably due to him reaching puberty, where he views girls with much more respect, as seen in the extra chapter of 133, where he apologizes to Ubuyashiki's daughter for pulling on her hair, with her happily forgiving him.
- Cannibalism Superpower: Genya can take on the Blood Demon Arts of demons with huge saturations of Muzan's blood such as the Upper Kizuki. The Demon Blood Art he used against Kokushibou has taken elements of Hantengu's Hate emotion's ability to grow trees and Kokushibou's own ability to convert his own flesh into living weaponry.
- Covered in Scars: He is covered in scars, which makes him look quite scary and brutal most of the time. The ones on his face were from his mother-turned-demon the day she killed the rest of his siblings.
- Delinquent Hair: His wild mohawk has gotten quite impressive since Tanjiro first met him. It goes well with his authority-defying, impatient attitude.
- Died in Your Arms Tonight: After sustaining fatal injuries in the battle against Kokushibou, he lives long enough to reconcile with his brother Sanemi and crumbles away in his arms.
- Dramatically Missing the Point: Genya insisted on becoming a Demon Slayer against his brother's wishes, unaware of the fact that his brother himself joined and even rose to become a Hashira in order to provide him with a peaceful life.
- Eating the Enemy: He's capable of eating demon flesh to temporary gain some of the resilience and strength of demons, something that's noted that not everyone can do. This pisses off his brother very much when he finds out, to the point where Tanjiro had to intervene to save Genya. This ability also has healing capabilities, as seen in chapter 171, where he eats a piece of Kokushibou's hair to heal his body. On top of that, it also grants himpower copying capabilities, where he can temporarily use the powers of the demon he consumes, like parts from Hantengu and Kokushibou (specifically his broken blade).
- Foil: To Nezuko. Both were the second oldest siblings of their families and were the only other survivor of them aside from their older brothers following a demon attack. However, Genya cannot use breaths but has the unusual ability to gain power from eating demon flesh while Nezuko is an unusually powerful demon able to recover from only sleeping. Also, their older brothers act very differently toward them (Sanemi is abrasive and rude while Tanjiro is kind and gentle) but ultimately both care deeply about their younger siblings.
- Ghost Memory: When Genya eats demons that have a large saturation ofMuzan's blood, he can hear his voice and conversations with the demon that he ate.
- Green Thumb: Genya's Blood Demon Art manifests as living bullet seeds that grow into trees and immobilizing their opponent by drinking their blood.
- Hair-Trigger Temper: At first. He does mellow out after the incident with the swordsmith village, though there are moments where he will still get mad, such as when Zenitsu is trying to help him escape Sanemi's wrath and calls Sanemi inhuman, which causes Genya to punch Zenitsu even though they're on the same side. And when he tells Tanjiro that he can't use Breaths, Inosuke insults him and calls him a shrimp, causing both Genya and Inosuke to get into a little scuffle.
- Half the Man He Used to Be: Twice, courtesy of Kokushibou. The first time was when Kokushibou defeated Muuichirou, and Genya attempted to help out by shooting him, getting his body and limbs sliced horizontally for his trouble. The second time was during Kokushibou's Desperation Attack, this time being sliced vertically. He later sustains a lot of damage after using his demon technique on him.
- I Got Bigger: When Tanjiro first sees him again after the Final Selection arc, he's gotten much taller and more imposing, which also implies that Genya is going through puberty.
- I Hate Past Me: He thoroughly regrets his violent, reactionary past-self, especially regretting his behavior during the Demon Hunter exam.
- Killed Off for Real: Genya was the first of Tanjiros selection batch to die, succumbing to his injuries after giving his brother and mentor an opening to take down Kokushibou.
- Made of Iron: Eating demons had probably raised his body's durability, as shown when he gets his torso and arms cut off by Kokushibou, but still managing to survive before Sanemi jumps in to help.
- Must Make Amends: In his backstory, when most of his family were slaughtered by what he thought was a wolf (which was actually his demonized mother), and he found his mother dead at the hands of Sanemi, he called him a monster, which strained their relationship. But after learning the truth behind his mother's death, he becomes regretful of his behavior and wanted to apologize, which is why he joined the Demon Slayer Corps. Unfortunately, Sanemi is not interested (or so it seemed at first). But then they face Kokushibou, thus leading Sanemi to defend Genya when he's attacked. Sadly, they are only able to truly reconcile as Genya dies.
- My Greatest Failure: Genya in the past called Sanemi a monster after he killed their mother-turned-demon who already killed the rest of their siblings to save his life. He regrets this even now.
- No Body Left Behind: Genya fades away into dust as he dies much like a demon as he took in a huge amount of Muzan's blood in his final moments. His clothes are the only things that remained after Genya fully dissipates.
- Pulling Themselves Together: With Muichiro's help, Genya manages to reattach his body parts together again by eating Kokushibou's hair, which helped instantly heal Genya.
- Sword and Gun: The only Demon Slayer to wield a gun, due to being unable to use Breaths. It shoots specialized bullets made of the same material Nichirin Swords are made of.
- Took a Level in Kindness: Still a little bit rough, but he's greatly mellowed out after the swordsmith village incident and is able to get along with Tanjiro and everyone quite well afterward.
- Uncertain Doom: After he is sliced in half vertically by Kokushibou, it is unknown if he can regenerate half of his head or not. However, it is confirmed Genya died after using his Demon technique on Kokushibou.
- When He Smiles: He smiles when he sees Nezuko alive and well in the sunlight along with Tanjiro at the end of the swordsmith village arc. And he gives genuine smiles more often in later chapters.
Voiced by: Hisako Tōjō
a Demon Slayer and part of the Demon Slayer Corps.
- All There in the Manual: Her name is only revealed in the Volume extras.
- Broken Tears: She did this when she was forced to kill her comrades against her will and breaking her bones by the Mother Spider Demon.
- We Hardly Knew Ye: She is killed by the Mother Spider Demon by twisting and breaking her neck.
The figure of legend who almost killed Muzan Kibutsuji 400 years in the past. He was a Demon Slayer whose skills seemed to be divine, earning some envy from people due to how unreachable Yoriichi seemed to be, namely Shinjuro Rengoku in the present and his own older twin brother in the past, Michikatsu Tsugikuni later known as Kokushibou.
Yoriichi is the foundation of all Breath teachings, later labeled as Breath of the Sun, his special body condition with affinity towards its techniques made Yoriichi the first Demon Slayer to have capabilities beyond human perception, with that he taught others what he could do, albeit none at the time could fully replicate him thus all other Breath forms were born.
He is technically the reason for the establishment of the Hashira rankings since it was revealed that the hierarchy within the Demon Slayer Corps was put into place thanks to Yoriichi demonstrating the power gaps between the Slayers.
- Asskicking Equals Authority: Yoriichi singlehandedly inspired the Demon Slayer Corps to instill a hierarchy system, thanks to his absurd skills being so far above anyone in his time. The Hashira ranks were put into place thanks to him after his sword was given the unique Metsu (Destroy) engraving in its blade. After that, all Hashira swords were to have the Akkimesatsu (Destroy All Evil) engraving in the blades.
- Beware the Nice Ones: Yoriichi may be an extremely kind and humble man but hes also the World's Strongest Man. Muzan experienced firsthand why you shouldnt anger Yoriichi.
- Blank White Eyes: He is shown with these whenever he is using Breath of the Sun.
- Cain and Abel: His relationship with Michikatsu, his older brother, wasn't perfect. Especially when Michikatsu harbored envy towards Yoriichi for his mastery in Breathing skills. And, of course, when Michikatsu became a man-eating demon and Muzan's right-hand man.
- Child Prodigy: Chapter 177 reveals that Yoriichi was born with the mark and that this mark had improved his sight and strength in his everyday life. He learns about swordsmanship from his father's retainer, Ito, really fast and swiftly wins in their sparring match. He also tells Michikatsu that he can see through things, meaning that everything in his vision is transparent to him. He really was a special child in his youth, but he never let that get the best of him. However, this did make Michikatsu jealous of his talents.
- Died Standing Up: Defiant to the end. As an 80-year-old man, Yoriichi died while trying to put his demon brother out of his misery. He actually seemed to have the upper hand in his final battle, but due to his old age, Yoriichi's body just gave up at the last second, and he died standing with his sword still in hand.
- The Dreaded: To Muzan, as Yoriichi was the demon slayer who almost killed him. Even as an old man on deaths door, Kokushibou knew he stood no chance of defeating him.
- Dying Alone: The most powerful demon slayer who has come close to killing Muzan Kibutsuji dedicated his whole life to exterminating them, a Samurai dedicated only to his craft. He never stopped to pursue any happiness for himself, instead choosing to die alone in one last match against a demon he knew very well, his own twin brother.
- Evolving Weapon: Yoriichi had a black blade like Tanjiro does- but unlike all normal demon slayers who permanently enhance the color of their blades due their Breath affinity when they touch it for the first time, Yoriichi could make his black blade turn red at will when he engaged in battle, showcasing his proficiency in Sun Breathing.
- Good Cannot Comprehend Evil: Like Tanjiro, Yoriichi didnt understand what was so enjoyable about trampling on the lives of others as Muzan had done so many times.
- Half the Man He Used to Be: After he expires during his duel with his older twin brother, Kokushibo slashes his body in two under the pretense of ensuring his death, but it was more of a fit of jealous and impotent rage.
- Heroic Self-Deprecation: Despite being such a legendary skilled swordsman, he is quite melancholic. He doesn't see himself as a person of worth since ultimately failed to kill Muzan and couldn't prevent his brother from walking the path of a demon.
- Heroic Willpower: Bearers of the Demon Slayer's Mark usually do not live past 25. He lived his entire life with it, and fought with all his might against Kokushibo, only failing because his life gave out at a crucial moment.
- Humble Hero: He was kind and respectful, never putting himself above others. In his youth, he told his brother Michikatsu, later Kokushibo, that if Michikatsu dreamed of being the greatest, most powerful swordsman who ever lived, then Yoriichi would be satisfied just being the second strongest. He really was a sweet child in the past, so far as to even refusing to become the family's successor so that he wouldn't usurp Michikatsu and willfully left early to become a monk. And it was revealed that he didn't even go to the temple because he knew their father would attempt to bring him back, so he left no trace of himself so that Michikatsu would surely achieve the position.
- The Immune: Somehow escaped the curse of the Demon Slayer's Mark. It was noted that no bearer of the Mark lives past 25 years of age, yet Yoriichi went on to live for 80 years, and with his skills seemly intact.
- Manly Tears: He sheds tears before his fight against Kokushibou, knowing that his former older brother Michikatsu betrayed him and now became a demon, the sworn enemy they were supposed to fight against.
- Master Swordsman: Presented as a legend under the most complete Breath ever and the origin of all others, the guy still managed to retain his abilities as an 80-year-old samurai, noted by his own twin-brother-turned-demon who still felt apprehensive against an old man who looked much more spent than him as someone who kept his youth.
- Nice Guy: Not just an unbelievable warrior, but a kind, generous and warm man. It's revealed in chapter 177 that he was always a very sweet person since childhood. He loved his family very much and did not object to his father's treatment of him. He felt bad for his father's retainer, Ito, after using his special talent and injuring him in the sword training. He was also helping his ill mother by walking alongside her and supporting her left side, which she could not walk on her own. And he treasures the flute that Michikatsu made for him, telling him that he will always remember his big brother after he prepares for traveling to the temple. He didn't even stay at the temple and left on his own journey so that his brother would become the next successor to their family.
- Old Master: As an 80-year-old man, Yoriichi is still able to use his swordsmanship skills in the same way as he did in his prime. He managed to slash Kokushibous neck, something that the latter finds unfair, as he became a demon who retained his youth while his brother remained human, yet still could boast that much skill as an elder.
- Passing the Torch: It can be noted that he, as an 80-year-old man, no longer had the hanafuda earrings. By that point, he had already passed his will on to Tanjiros ancestors.
- Reality Ensues: Yoriichis skill may have been as sharp as it was during his prime but at 85 years of age, his body just could not go any further and Yoriichi passed away before he could deliver the finishing blow to Kokushibou.
- Samurai: Yoriichi is from the Sengoku period where the Samurai were still around. Since the demon slayers werent quite what they are now, Yoriichi was better known publicly as a samurai instead of a demon slayer.
- Shrouded in Myth: Despite being the guy who made Muzan shake in his boots, Yoriichi and the Tsugikuni family, in general, don't seem to be well documented within the Slayer records. Any info on their legacy is quite limited and sparse.
- Single-Stroke Battle: How his last battle went down. Yoriichi, as an old man, gave his all into one attack that really got Kokushibou by surprise, but it only slashed his neck. After that, Yoriichis life just expired, and he died standing with his sword in hand.
- The Stoic: Noted to be a very composed Samurai who rarely showed his emotions. He seemingly was a determined man who gave his all to slay demons. However, it seems he enjoyed the company of more expressive people, like his friend Sumiyoshi.
- Not So Stoic: Turns out Yoriichi just wasn't good in expressing his emotions properly, noted not even to cry as a baby normally would in their first years of life, he was in fact very kind, but his reactions could be interpreted as apathy by those who didn't want to see Yoriichi for what he truly was. In his advanced age, Yoriichi has grown to properly show sorrow for his brother Michikatsu at last, who turned into a demon and betrayed the demon-slaying path. Seeing him crying was something Michikatsu noted he had never seen Yoriichi do before.
- Sympathy for the Devil: He wept when he saw his older twin brother as a demon and gave him genuine sympathy for throwing away his pride and mortality just to prolong his strength.
- Tragic Keepsake: As a child, Yoriichi was given a handmade wooden flute by his twin Michikatsu. He never stopped carrying it, not even when in death as an 85-year-old man, long after Michikatsu became the demon Kokushibo.
- Training Dummy: Midway into the series, theres an automated training dummy named Yoriichi Zeroshiki, said to be modeled after a powerful slayer with skills so absurd that the doll had to be given six arms with a katana on each hand just to emulate what the 2-armed slayer was capable of. Back then, the fact was only hinted at now, but it has been since made clear that it was modeled after Yoriichi, even sharing his name.
- Wise Beyond Their Years: As a seven-year-old child, he was the only member of his family who understood the severity of his mother's failing health and did everything he could to support her until she died. He was also aware of his father's pragmatic view of the family's succession and knew he would usurp his brother Michikatsu's place as heir due to his clearly superior swordsmanship, and chose to leave the household on his own terms to spare his brother of this fate.
- World's Strongest Man: He was THE Demon Slayer. He was so overwhelmingly powerful that even Muzan was afraid of him. Literally the only reason that he didn't win his final fight against Kokushibo was that he was eighty-five and his body just gave out on him before he could properly inflict a killing blow. To put that feat in perspective, when Kokushibo is fought in the series proper, it took multiple Hashira working together, a few Heroic Sacrifices, and Kokushibo suffering a What Have I Become? moment and a Villainous BSoD to put him down for good. This guy almost did it by himself at the age of eighty-five.
Voiced by: Yuri Ehara
A Demon Hunter who is a caretaker of the Butterfly Estate.
- Damsel in Distress: Forcefully drafted into a demon-slaying mission by Tengen Uzui who needed female Demon-Slayers in order to infiltrate a prostitution ring to save his wives. Luckily Tanjirou, Zenitsu, and Inosuke volunteered to go in her place.
- The Medic: Her role despite being a qualified Demon Slayer. Unlike Shinobu and Kanao, Aoi would rather hang around the Butterfly Estate tending to wounded Demon Slayers than going out slaying demons herself.
- Only Sane Woman:When it comes to Zenitsu and Inosuke, she really doesn't tolerate their behavior. Especially for Zenitsu after the swordsmith village arc when he starts gushing over Nezuko walking in sunlight and talking again. Aoi is clearly annoyed by Zenitsu's antics and tries to stop him from bothering Nezuko. But, when Nezuko accidentally calls Zenitsu "Inosuke", Zenitsu ends up getting mad at Inosuke and plots to get his revenge, to which Aoi criticizes Zenitsu since his plot for vengeance and angry face is clearly scaring everyone.
- Tears of Joy: When Tanjiro regains consciousness following his fight with Upper-6 Daki and Gyuutarou, Aoi starts crying out of relief and guilt because Tanjirou almost died in the mission he took in her stead.
- Tomboy and Girly Girl: Comparatively, she's the tomboy to Kanao and Shinobu's Girly Girl, though she's girly herself.
- Tomboy with a Girly Streak: As The Medic, she deals with the more delicate side of bedside care, but she's still a Demon Slayer and provides rehab training to the convalescent.
- Tsundere: Type A. Out of the three male leads thus far, Tanjirou is the only one who she shows her deredere side to. Aoi finds Inosuke abnormal and has zero patience for Zenitsu's overdramatic antics.
- You Are Better Than You Think You Are: Aoi feels a bit less of an important member of the Demon Slayers because while she did take the selection exam to fight demons and passed, Aoi sees it as pure luck, explaining that she is too scared to actually fight demons and prefers to volunteer as a medical and training assistant in the Butterfly Estate instead, away from immediate danger. Tanjiro doesn't agree with Aoi thinking she is less of a slayer because of that, and reassures her that she is an important part of the Demon Slayers thanks to her medical skills. Receiving this much gratitude and praise takes Aoi back a little.
Sumi Nakahara, Kiyo Terauchi, and Naho Takada
Voiced by: Ayumi Mano (Sumi Nakahara), Nanami Yamashita (Kiyo Terauchi) and Yūki Kuwahara (Naho Takada)
The servants of the Butterfly Estate.
- Black Bead Eyes: They have dotted eyes as their default expression.
- Children Are Innocent: They are very sweet and kind little girls who are ready to help people out. On the cover of chapter 129, Sumi is even trying to feed an injured Genya at the Butterly Estate, but because Genya reached puberty, he gets nervous and politely tries to decline.
- Color-Coded Characters: They all wear the same outfit and Hair Decorations, but they're accented with different colors in order to tell them apart; Sumi wears blue, Kiyo wears red, and Naho wears green.
- The Dividual: The three of them are rarely seen apart. They also look and sound very similar, and they more or less all share the same personality. If it weren't for the fact that they have different family names, one could easily mistake them for triplets.
- Hair Decorations: All three of them wear butterfly hair clips. Sumi wears two of them to fasten her pigtails, Kiyo wears one on each side of her head, and Naho wears one on each end of her braids.
- Precocious Crush: All three girls have a crush on Tanjiro since he's so nice and friendly to them.
Voiced by: Makoto Furukawa
A member of the Kakushi, the clean-up brigade of the Demon Slayers.
- Cool Mask: Wears a long mask, which covers his face and leaves an opening for his eyes, similar to a ninja's mask.
- Nice Guy: He's a very docile and gentle individual. He has a deep respect for Tanjiro, Nezuko, Zenitsu, and Inosuke because of their bravery and capability. He even visits Tanjiro after the swordsmith incident to check on his condition and his progress. He also shows concern and relief after hearing that Nezuko can walk in sunlight and speak words again.
- Only Sane Man: He is always the sane one in the weird situations he ends up in. When Kanao was talking to Tanjiro, who had woken up from his injuries, Gotou scolds Kanao for not informing the others that Tanjiro woke up (although this was because she still needed her coin to make decisions). And while Tanjiro is recovering in the Butterfly Estate after the swordsmith incident, Gotou has to deal with the commotion caused by Hotaru and Inosuke (Hotaru threatening Tanjiro about his swords as usual, and Inosuke suddenly bursting through the window just to tell him about their next training with The Hashira).
- Undying Loyalty: He's shown to have great loyalty and respect for Shinobu.
Voiced by: Takumi Yamazaki (Tanjiros Messenger), Wataru Takagi (Corp Headquarters Messenger, Ep.21), Nobuyuki Hiyama (Corp Headquarters Messenger, Ep.21) (Japanese), Doug Erholtz (English)
Kasugai Crows are crows that are used by the Demon Slayer Corps primarily for communication.
- Bunny-Ears Lawyer: The first few crows shown are quite standard looking, devoid of any unique characteristic, however as the series progresses more quirky crows are introduced, sadly they are mostly reserved to only appear in manga volume extra illustrations.
- Inosukes crow has a funny hairdo with three long hair strands.
- Muichirous crow is female and is pretty much his number one fan, always singing his praises and demanding others to worship him as well.
- Tengens crow styles himself after his owner, just as flamboyant.
- Mitsuris crow is always blushing and thinking about romance.
- Kagayas crow seems to be a cut above the rest, he speaks extremely well as if he was human, and is highly intelligent, actually doing intel work of his own, instead of just relaying messages like other crows.
- Giyus crow is apparently super old, always acting like an absent minded elder.
- Non-Action Guy: They aren't use for fighting demons and they are only used for communication.
- Talking Animal: The Kasugai Crows are capable of human speech, and can communicate with Demon Slayers. Truth in Television, since crows can be taught to mimic human speech much like parrots can.
- Tsundere: Tanjiros crow of all things, it always acts bossy towards Tanjiro, even pecking him a lot, and sees Tanjiro as his subordinate, but it will not tolerate other crows not showing proper respect towards Tanjiro, seen when Muichirous crow thought Tanjiro was a lesser demon slayer and his crow immediately picked an argument with her.
Zenitsu's Kasugai Crow, who is actually a sparrow.
- Adaptation Expansion: Every slayer has their own messenger crow, some with unique designs even, but only Tanjiros crow gets any form of presence in the anime and manga, even if it's just to deliver a message before going away. Zenitsus messenger on the other hand is already different from the get-go, since it's a sparrow and not a crow. The little bird has a name to make it unique, Chuntaro, and the anime made sure to adapt even the extra manga volume illustrations into full anime scenes, giving Chuntaro more exposure than it already had in the manga proper, which in turn was more than any other crow, as if Chuntaro is being pushed as a mascot of sorts.
- Head Pet: He is always seen on top of Zenitsu's head during missions or free time.
- My Name Is Not Durwood: He gets annoyed whenever Zenitsu can't figure out his real name. Since Zenitsu always feeds him beans, he always calls him the wrong name, "Chuntaro".
- One Of These Is Not Like The Others: Unlike most of the other crows, he's a sparrow and so far the only Kasugaigarasu who can't talk.
- Trademark Favorite Food: Ukogi. He enjoys eating ukogi since that's what he got his name from.
- The Unintelligible: In the setting, messenger crows assigned to slayers have been taught how to speak human language. Zenitsus messenger, however, is a sparrow that cannot speak normally. Tt tries to communicate by just repeating chu, chu, chu over and over again accompained by gestures. The narrator text will sometimes translate for the audience what the bird is trying to say, but Zenitsu will remain lost on what Chuntaro is saying. Tanjiro on the other hand can understand the bird perfectly.
Sabito is voiced by: Yuuki Kaji [JP] Max Mittelman [ENG]
Makomo is voiced by: Ai Kakuma [JP], Ryan Bartley [ENG]
Live actor: Shōri (Sabito), Arisa Sonohara (Makomo) (Stage Play)
A pair of mysterious children Tanjiro meets while training for the Final Selection.
- The Ace: Sabito was by all accounts a talented swordsman to where all of the others sans him survived the selection. This is the real reason Giyu doubts his abilities as a Hashira, thinking Sabito would have been far better had he survived.
- Cruel and Unusual Death: Makomo has her arms and legs ripped apart and killed by the Hand Demon, while the anime shows through a Gory Discretion Shot that Sabito had his head crushed by the same demon.
- Dead All Along: Though Tanjiro is able to see and interact with them, it turns out that they've actually been dead for several years, having both been killed by the Hand Demon during the Final Selection. Tanjiro discovers later that Sabito would have been the same age as Giyu had he survived.
- Fragile Speedster: The vengeful demon described Makomo as being weak but very fast.
- Get a Hold of Yourself, Man!: In the past, Sabito punched Giyu after he was feeling survivor's guilt and convinced him to not give up living after Giyu's big sister saved his life. Giyu mentions that he can still feel the pain from Sabito's punch and realized that he cannot give up his role as a Hashira for the sake of his big sister and Sabito.
- Heroic Sacrifice: Sabito saved everyone in his selection and was the only one who died. Makomo is also said to have died in the same selection.
- The Reveal: They are in fact ghosts of students that had failed the final selection. Urokodaki was quite surprised when Tanjiro casually mentioned them, wondering how he knew the names of his dead disciples.
- Small Role, Big Impact: Sabito saved Giyu when they took the Final Selection together, an action that allowed Giyu to survive and encounter Tanjirou, allowing him to become a Demon Hunter in turn. Then Sabito and Makomo trained Tanjiro when he got stuck and unable to progress with his training, making them indirectly the cause of the demon's downfall. Despite their contributions to the plot, they make very few appearances afterwards due to the reveal that they've both been Dead All Along.
- Spirit Advisor: They both show up when Tanjiro is training for the Final Selection to help him train and offer them advice. However, the trope isn't really in effect until the reveal that they've actually been Dead All Along.
- What Could Have Been: In-universe example. Tanjiro imagined what Sabito would have currently looked like had he survived the selection. He pictured an older looking Sabito in full uniform and said that he would have been a great swordsman alongside with Giyu.
Three female Kunoichi Demon Slayers and the wives of Tengen Uzui. With only complementary fighting abilities, they mostly supported their husband Tengen in his missions, sometimes with intel gatherering. After the Red Light District arc, they retire along with Tengen.
- Baby Factory: What all of three of them were raised as. Their ninja clan saw the kunoichi as nothing but disposable pieces for making children to expand the clan, and when needed they were expected to sacrifice themselves to gather intel. However,fate smiled upon them as they were paired with a husband that actually valued their lives as people. Tengen flat out told them that happiness and preserving their lives is a priority, and he hasn't forced any children upon the girls, preferring to let heirs happen naturaly whenever they feel it's the right time.
- Distaff Counterpart: The three wives are curiously similar to the main male lead characters: Tanjiro, Zenitsu and Inosuke regarding their basic personality traits; Hinatsuru is the peace maker and heart of the trio, like Tanjiro is, Suma is the overly emotional roller-coaster who cries and screams in fear a bit too much, like Zenitsu does, then comes Makio who is brash and gutsy and whos always bickering with Suma, just like Inosuke acts with Zenitsu. The similarities are so obvious that several fan works do not let these similarities pass by unnoticed.
- Happily Married: All three are very happy with Tengen, who cares for all of them equally.
- The Infiltration: They infiltrate the Yoshiwara Red Light District as High-Class Call Girls in order to gather information on reports of a demon due to many unexplained disappearances.
- Ms. Fanservice: All of them wear very revealing outfits in their debut arc. They are dressed more modestly in later appearances, though they all still display Absolute Cleavage.
- Ninja: All three of them are ninja, and along with Uzui they're some of the few that are still left.
- Polyamory: All three of them are married to Uzui.
- The Blacksmith: They are very skilled at crafting and forging the swords for their clients.
- Cool Mask: Everyone in the village has to wear a hyottoko mask in order to conceal their faces from outsiders.
- Expressive Mask: Their masks show a variety of emotions based on how they feel.
- Hidden Elf Village: The location of the Swordsmith Village is unknown, and they have kept their village a secret for good reason.
The elderly chief of the Swordsmith Village.
- Dirty Old Man: After Mitsuri saved him from a Lower Kizuki, he thought he died and and went to heaven since he was being hugged by a cute girl a while coughing blood. This makes Mitsuri flutter, and she endearingly calls him a little pervert.
- Miniature Senior Citizens: He is an absolutely tiny old man.
- Promotion to Parent: According to Volume 14 extras, he raised Haganezuka after his parents abandoned him at the age of 2.
Voiced by: Daisuke Namikawa (Japanese), Robbie Daymond (English)
One of many swordsmiths who works for the Demon Slayer Corps.
- Bishōnen: His face behind the mask as shown while in the middle of finishing Tanjiro's blade in the middle of the swordsmith village being raided is quite pretty.
- The Blacksmith: Of course.
- Exact Eavesdropping: He secretly was nearby when Tanjiro was confronting Muichiro, listening to Tanjiro state how the swordsmiths are important to the Demon Slayers. Hearing these words made him willingly go through training and use dangerous smithing techniques in order to forge a strong sword for Tanjiro.
- Eye Scream: He lost his left eye from one of the demons in the middle of the swordsmith village raid.
- Hair-Trigger Temper: Every time Tanjiro broke or damaged his sword, Haganezuka would chase him with knives for several hours. Because of these actions and his bad attitude in general, he doesn't have many clients aside from Tanjiro.
- Heroic Build: During the beginning of the Swordsmith Village Arc, he is reported missing and Tanjiro is unable to find him. When he finally appears, he is positively yoked, having spent weeks putting himself through Training from Hell in the mountains in order to forge the perfect blade for Tanjiro. This is Played for Laughs, but it later saves his life after Upper Moon 5 Gyokko finds him working on the sword and attempts to break his will by torturing him. It is unlikely he would have survived all the punishment for as long as he did if his physical constitution wasn't so durable thanks to his training.
- Hypocritical Humor: Haganezuka regularly attacks Tanjiro when he breaks/loses the swords he builds, not because he's actually mad at Tanjiro, but he's frustrated at himself at the fact that his craft is not good enough for the occupational hazards Tanjiro has to go through. As Chief Tecchin states, the standard of the village swordsmithing is that the swords for the Demon Slayers must never break.
- Jerk with a Heart of Gold: He is easily angered when something happens to his swords, but he really does take his job as a swordsmith very seriously. And although Tanjiro broke some of his swords, at the end of the day he's willing to make new ones for Tanjiro to continue on fighting.
- No Social Skills: Kotestu brutally comments that his social skills are terrible, and it's not a wrong observation considering he doesn't have many clients because of how unlikeable he is.
- Older Than They Look: He's actually 37 years old, but his face exposed during the raid on the swordsmith village looks youthful.
- Parental Abandonment: According to Volume 14 extras, he was abandoned by his parents at the age of 2 due to his violent temper, and he ends up being raised by the chief of the Swordsmith Village, Tecchikawahara.
- Skewed Priorities: Being attacked by a Kizuki while he's at work restoring Yoriichi's blade? Nah, ignore the enemy, this is priority. This actually works in his favor, as said Kizuki sees itself as an artist, and while it can easily kill him, being ignored by him makes it want to capture his attention before killing him.
- Trademark Favorite Food: Mitarashi Dango. When he gets a bad temper, he always buy his favorite food to calm himself down according to the Volume 8 extras.
Voiced by: Eiji Takemoto
A swordsmith affiliated with the Demon Slayer Corps.
- Beauty Mark: Without his mask, he has a beauty mark above his right eye.
- Happily Married: To his wife, Kanamorien.
- Love at First Sight: According to Volume 14 extras, he fell in love with his wife five years ago when he was 21 years old.
- Not So Above It All: Despite chiding Haganezuka for overreacting to Tanjiro breaking his katana, Kanamori goes absolutely apeshit over Inosuke chipping his own creation in front of his eyes, so much so that Tanjiro had to hold him back. Though in all fairness, he had a much more valid reason to go all Haganezuka at Inosuke, as the damage done to his sword was clearly self-inflicted.
- Older Than They Look: He's really 26 years old.
- Brutal Honesty: A trait of his. He doesn't hesitate to point out that Haganezuka should have just told Tanjiro what he wanted to do with the sword instead of attempting to take it without explanation since it's a form of trust.
- Drill Sergeant Nasty: His real personality. Sadness over his father's death made him temporarily timid.
- Mouthy Kid: He's rather outspoken and blunt.
- Pocket Protector: He was saved from a fatal wound to the solar plexus thanks to Rengoku's sword hilt he was carrying to put on Tanjiro's new blade once Haganezuka was finished restoring it.
- Training from Hell: Puts Tanjiro through a week without food, water, or sleep. While it does actually work in having Tanjiro learn to predict attacks, he only survived during this period by drinking raindrops. The Narrator points out that Kotetsu's training is so hellish because he is too young to understand the limits of the human body (such as a human only being able to go three days without water).
See here for all tropes regarding her.
Voiced by: Maaya Sakamoto
Live actor: Mimi Maihane (Stage Play)
A demon doctor in Asakusa who Tanjiro encounters. She helps him try to cure Nezuko.
- The Atoner: It's revealed that Tamayo ate her family after being turned into a demon and ate other humans in her despair afterward, which she clearly regrets doing in present-day and works to live peacefully with humans... and why she's perfectly willing to kill herself to end Muzan.
- Beware of the Nice Ones: She attacks Muzan directly with her newly developed drugs and the Demon Blood Art of one of her patients, because Muzan turned her into a demon and purposely didn't warn her about her needing to eat humans, resulting in her eating her own family.
- Damsel in Distress: Tamayo is currently trapped in a cocoon created by Muzan's flesh after trying to use the medicine to turn him human. Sadly, no one is able to save her and she is killed by Muzan once he recovers.
- Defiant to the End: She tells Muzan to go to hell and demands her family back.
- Emotion Control: Her Demon Blood Art is capable of emotional manipulation via creating certain scents.
- Eye Scream: After getting close to Muzan in order to inject him with the demon-curing medicine, he gouges out her left eye with his finger and keeps it lodged in her head while he enters his flesh cocoon to recover.
- Gone Horribly Wrong: Her attempt to turn Muzan back into a human by injecting him with a demon-curing drug backfires horribly, as it instead empowers Muzan to an even greater degree once he heals in his flesh cocoon.
- Horror Hunger: Tamayo originally became a demon in order to survive a fatal illness to see her children grow up... but unlike Nezuko, Tamayo ate her own family after turning and in her despair ate other humans before she began to atone for it.
- Ill Girl: Was suffering from an incurable illness as a human, which was why she agreed to have Muzan turn her into a demon in the first place.
- Magic Antidote: After doing research with Nezuko's blood and the blood of both the Lower and Upper Kizuki, Tamayo was able to create a medicine that can instantly revert a demon back into a human state. A young man who got turned into a demon by Muzan in the early chapters instantly became human again thanks to the medicine and is shown to be tearfully embracing his wife. Now that the medicine is confirmed to work, Tamayo had given the medicine to Urokodaki to cure and change Nezuko back into a human to foil Muzan's plans, and had attempted to use the medicine on Muzan himself to turn him back into a human to try and finish him off once and for all. Unfortunately, Muzan is able to overcome the medicine because of the cocoon he's made and the stalling from his demons.
- Offing the Offspring: She killed her children upon her demonic transformation, to her horror and despair. The reason she even became a demon in the first place was to survive her illness and wanting to see her children grow up.
- Prim and Proper Bun: She's a Yamato Nadeshiko with a neat bun in the back.
- Raven Hair, Ivory Skin: She's frequently described by Yushiro as beautiful, with black hair and pale skin.
- Tears of Joy: She breaks down in tears when Tanjiro tells her that Nezuko considers her and Yushiro humans, seeing that she has spent 300 years living in an unnatural monstrous state.
- Truth Serum: One application of her Demon Blood Art.
- Vegetarian Vampire: Instead of devouring humans, she merely needs to drink their blood to survive, which she obtains by purchasing it from willing donors.
- Yamato Nadeshiko: She's a gentle yet strong-willed Japanese woman in a floral-patterned kimono. She's frequently described by Yushiro as beautiful, with Raven Hair, Ivory Skin, and a petite build.
- Your Head A-Splode: After Muzan overcomes her attempt to revert him to a human, he taunts her for her failure before crushing her head in an explosion of blood.
Voiced by: Daiki Yamashita
Live actor: Hisanori Satō (Stage Play)
A young man who was turned into a demon by Tamayo.
- Berserk Button: Don't ever harm Tamayo. Ever. In chapter 182, he gets very pissed off at Muzan after he finds out of what happened to Tamayo.
- Big Damn Heroes: After Zenitsu defeats Kaigaku, Yushiro catches him before he falls to his death and gives him medical treatment. He gets another heroic moment when he stops Nakime from using her biwa to manipulate Muzan's fortress in order to support Tanjiro, Giyuu, Mitsuri, and Iguro.
- Can't Live Without You: As the only person successfully turned into a demon by Tamayo, his life is tied to hers and he can only live as long as she does. After she is killed by Muzan, Yushiro is seen immediately falling to the ground in pain and it's implied he'll soon follow her. Although he makes sure to help out the heroes in the best way he can to defeat Muzan and avenge Tamayo.
- Deadpan Snarker: While he's healing Zenitsu, he snarks at the rookie Demon Slayers who were telling him to not be so negative about Zenitsu's injuries. Moments later, he tells them that they were being too loud and now called the attention of Muzan's lower demons. He also makes fun of Murata fighting the demons, sarcastically rooting for him and calling him "senpai", much to Murata's dismay.
- Green-Eyed Monster: He is madly in love with Tamayo and hates anyone who gets close to her regardless of gender or age.
- I Shall Taunt You: He gives a rather dark insult towards a defeated Kaigaku before rescuing Zenitsu, saying how Kaigaku never received anything because he never gave anything and calling him pitiful.
- Jerk with a Heart of Gold: Quite rude towards anyone Tamayo doesn't know, but deep down, he's a good guy at heart. And he's willing to help anyone out for Tamayo's sake.
- Let's Get Dangerous!: In chapter 182, Yushiro manages to sneak up on Nakime and uses his Blindfold Blood Art to block her vision, causing Muzan's fortress to start crumbling.
- The Medic: He learned medicinal techniques from Tamayo and gives medical treatment to an injured Zenitsu.
- Non-Action Guy: Although he's a demon, he's not one to do the fighting. Instead, he uses his talisman Demon Blood Arts to support his allies in battle and he uses medicinal knowledge and techniques. However, Tamayo has mentioned that he could enter combat mode after an unspecified amount of time. He finally does in chapter 182, where he stopped Nakime from manipulating Muzan's fortress and allowing Iguro and Mitsuri to join Tanjiro and Giyuu.
- Paper-Thin Disguise: When joining in the fight against Muzan, all Tamayo does to sneak Yushiro into the Demon Slayer group was change his eye design and give him the Demon Slayer uniform. Because he was turned into a demon by Tamayo, none of the other Demon Slayers figured out he was a demon, despite feeling something off about him and literally nobody knew his face when he joined in. So he really looks like he fits in with the group of rookies thanks to the uniform and eye change.
- Perception Filter: His Blindfold Blood Art allows him to create talismans that block the scent and presence of objects, people and things. He uses this to fool Nakime's vision to stop her from manipulating the Infinity Fortress and allow Iguro and Mitsuri to regroup with Tanjiro and Giyu.
- Skewed Priorities: While regenerating, he's more pissed off at the fact his time with Tamayo is shortened by others... than the fact they're currently under attack.
- Single-Target Sexuality: He only has eyes for Tamayo and he's not into anyone who isn't Tamayo. He goes as far as calling Nezuko ugly.
- Vegetarian Vampire: Like Tamayo who turned him, he only needs a bit of blood to survive and doesn't need to hunt humans.