Main Characters | Demon Slayer Corps (Hashira) | Muzan Kibutsuji and the Twelve Kizuki | Civilians | Other Demons | Demon Slayer Academy
Voiced by: Toshiyuki Morikawa (Japanese), Matthew Mercer (English), Idzi Dutkiewicz (Latin American Spanish)
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.
- Batman Gambit: Knows Muzan will make his move after observing Nezuko's ability to withstand sunlight, allowing him to be drawn in so Kagaya can give his life to wound him, setting the stage for the final battle.
- 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 Chessmaster: Kagaya has set up a complex scheme for keeping key locations safe from Muzan's demons, involving multiple guides and constantly changing routes to throw them off for years.
- 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 hidden bomb 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.
- Go Out with a Smile: Muzan describes Kagaya's final expression before his death as that of a smiling buddha. This is the complete opposite of Muzan, who deeply fears death and would do anything possible, no matter how reprehensible or undignified, to avoid facing it.
- The Heart: He's not just the leader of the Demon Slayers, he's their moral center, too.
- Hereditary Curse: The illness that is killing him is said to be a curse caused by his family producing Muzan, every male is cursed to die young in great pain.
- 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 Man: 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.
- Manipulative Bastard: A thankfully benevolent one, he draws Muzan into a trap using his own life as bait, before blowing himself up to wound the demon leader.
- 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.
- OOC 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.
- Reasonable Authority Figure: As opposed to some of the Hashira's Fantastic Racism towards Nezuko, Kagaya bears no ill will towards a Demon Slayer accompanying his demon sister, although he wants Tanjiro to understand that not all people will accept his unique situation due of how most of the members of the corps are victims of Demon attacks. And it's heavily implied that he even lets Tamayo (another demon) help him and the corps on taking down Muzan once and for all, given how she also collaborates with Shinobu on returning Nezuko back to human and create the medicine to bring their shared nemesis down.
- 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.
- You Cannot Kill An Idea: As he is confronted by Muzan, Kagaya informs him that even if he is killed, his will to stop Muzan will live on through the remaining members of the Demon Slayer Corps. He considers thoughts to be indestructible feelings that can be inherited and passed on by those that come after, something that a selfish being like Muzan could never understand. Kagaya laying out that the demon race will die off along with Muzan thanks to his selfishness makes him lose his composure and slip into an expression of sadness, something that Kagaya picks up on despite his blindness and uses to alter the power dynamic of their confrontation even though he is a helpless, dying man.
- This ends up zig-zagging with Gone Horribly Right during Muzan's own final moments, as he genuinely took Kagaya's words to heart and witnessed firsthand how powerful inherited thoughts and wills can be over the course of the final battle. Muzan twists and perverts Kagaya's sentiment into his own selfish interpretation, and decides to pass on his will to destroy the Demon Slayers by resurrecting the deceased Tanjiro into a demon as his final act, cruelly forcing him to carry on his legacy and keep the demon race alive as its new king. However, Muzan's failure to understand that he needs people who genuinely want to carry on his will by being an example to them, like Kagaya (and heavily implied, to his predecessors as well and including his son and successor Kiriya) inspiring hope and wisdom to the Demon Slayers who were once left nothing when Demons ruined their lives had proven from time to time, ends up ruining his attempt to keep his legacy alive, as Tanjiro wanted nothing to do with being an all-powerful demon and resisted Muzan the moment he was able to. Considering that Muzan's a Bad Boss and an abhorrent sociopath, he will never reach the same understanding as Kagaya in regards to this trope.
Voiced by: Aoi Yūki (Japanese), Christine Marie Cabanos (English), Sammir Hernandez (Latin American Spanish)
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.
- Hereditary Curse: The first in his family not to be inflicted by the illness of his forefathers, as Muzan dies shortly after he inherits the role as Head of the Demon Slayers. Having finally atoned, Kiriya lives for a really long time and is even still alive as the oldest man in Japan in the Distant Finale.
- 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.
- Post-Victory Collapse: He collapses from exhaustion after Muzan is finally defeated.
- 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 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.
The Hashiranote 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.
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 (Japanese) Brianna Knickerbocker (English)
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, and she is the only member of Tanjiro's selection to be completely unharmed after the seven-day long Final Selection. 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 Upper-2 Doma.
- 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 Motifs: Butterflies like her mentor, Shinobu, though she uses the Flower Breathing instead of the Insect Breathing. She wears a butterfly-shaped hairclip, is sometimes seen with butterflies surrounding her, and is noted for her extraordinary eyesight, which is similar to butterflies having pronounced color vision. Using the Flower Breathing's final form, Equinoctial Vermillion Eye, makes her look even more insect-like.
- Beauty Is Never Tarnished: Initially played straight, since she doesn't even have a scratch on her at the end of the Final Selection and is never shown to be injured during missions. Averted later in the Infinity Castle arc where 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. Then Volume 19's Taisho Rumors shed a little light on this. As a child, she was naturally talented at demon slaying, having quickly learned Flower Breathing just from watching the Kocho sisters without having been formally trained to fight yet at the time.
- Custom Uniform: She wears a knee-length pleated skirt and knee-high boots instead of the Demon Slayer Corps' standard hakama and sandals. This may have to do with her status as a Tsuguko.
- Cute Mute: She's silent most of the time and a formidable Demon Slayer.
- 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.
- Desperately Needs Orders: Because of her difficult past, she has a hard time functioning without being directly told what to do. Kanae gave her a coin to flip for whenever she has trouble making decisions by herself. Her Character Development focuses on her developing her own free will and not relying as much on her coin.
- 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: Despite having a different family name (which she chose for herself, having been nameless beforehand), she considers the Kocho 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 Tanjiro, Doma with Shinobu in his final moments. Their fight against each other showcases just how much Kanao has changed since she met Tanjiro.
- Friend to All Living Things: Kanao seems to have a fondness for nature and animals, and is often seen with a butterfly gently perched on her finger. It is for this reason that Sanemi gave her the deceased Obanai's pet snake Kaburamaru to care for after the final battle.
- Heads or Tails?: Up until meeting Tanjiro, she makes decisions by flipping a coin if she is not given instructions on what to do.
- Heroic Sacrifice: Kanao uses the final form of Flower Breathing: Equinoctial Vermilion Eye in her remaining left eye to avoid Tanjiro's attacks and inject the antidote to turn him human again. She succeeds in injecting Tanjiro with the antidote at the cost of getting stabbed through the chest. Fortunately, she makes it out alive.
- Hidden Depths: Volume 19's Taisho Rumors reveal that Kanao took the Demon Slayers' Selection Exam by her own volition and without permission from either Kocho sisters back in her very first appearance in the manga, showing that she had a bit of a rebellious streak even way back then and before Tanjiro helped get her further out of the comfort zone she made for herself.
- 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 Total 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.
- Important Hair Accessory: 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 Doma, it gets broken and she later replaces it with Shinobu's butterfly hairclip after Shinobu's own death at Doma's hands.
- Instant Expert: According to Volume 19's Taisho Rumors, Kanao learned and eventually mastered Flower Breathing just by watching Kanae and Shinobu from afar.
- 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.
- Lady of War: A quietly graceful young girl and user of the Flower Breathing, a style which focuses on graceful sword flurries and spins. She is noted to be even stronger than her adoptive older sister Shinobu, the Insect Hashira.
- 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.
- The Medic: The special illustrations and accompanying info in the second Fanbook shows that after Muzan and the Demon Slayer Corps are done, Kanao devoted herself to the more clinical aspect of the Butterfly Estate practices, something that she previously sucked at, which prompted her to become a strong demon slayer before, since she really wanted to be useful.
- 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 Doma 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.
- My Defense Need Not Protect Me Forever:This is the crux of her entire plan in the battle against Doma. Kanao knows she can't defeat him in a straight-up fight, and she is also aware of Shinobu's gambit to poison him after being devoured, so she only fights to prolong the battle until the poison kicks in and creates an opening to kill Doma. This plan is fortunately helped along by Inosuke's arrival and Doma's decision to toy around with them instead of fighting seriously.
- Also done in in the battle with Demon Tanjiro. Kanao knows she can't beat him, and even Flower Breathing: Equinoctial Vermilion Eye won't allow her to avoid his attacks forever (along with possibly blinding her remaining eye). But all she needs to do is dodge until she gets an opening to inject the last of Tamayo and Shinobu's demon antidote to turn him human again, at which point Tanjiro can come back to his senses on his own.
- Never Given a Name: Her abusive parents thought so little of their children that Kanao was never given a name, like all her siblings; when Kanao was properly adopted by the Kocho sisters, she was given the name Kanao Tsuyuri. The extras within Volume 19 reveal it was Kanao herself who came up with her name, choosing through several suggestions of given and family names presented to her.
- 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 Breathing adept like Kanae, unlike Shinobu, who became an Insect Breating adept, a direct offshoot from the Flower Breathing.
- Pink Means Feminine: Kanao's Nichirin Sword is pink.
- Progressively Prettier: Gotouge starts to draw Kanao more mature looking much later in the series, with her possibly going through a another puberty spurt despite these changes happening in less than a year in-story, Kanao becomes more feminine and with more notable body curves, matching Shinobu in this regard.
- 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 Kocho and Shinobu Kocho 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.
- She's Got Legs: As part of her Progressively Prettier treatment later in the series, Kanao's legs are shown off quite a lot during her action scenes due to her choice of attire. Officially colored artwork also draws a lot of focus to her legs, such as the cover for Volume 18 or the color spread for chapter 162.
- 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.
- The final chapter, taking place in modern day Japan, opens featuring two siblings (Kanata and Sumihiko) who look like fullblown Generation Xeroxes of Kanao and Tanjiro respectively. This implies that the two ultimately ended up starting a family together.
- 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.
- Wrecked Weapon: Her sword is destroyed by Muzan in the final battle.
Voiced by: Kouki Miyata (Japanese), Khoi Dao (English)
One of the Demon Slayers middle ranks and a friend of Tanjiro.
- Action Survivor: Apart from being one of the survivors of the Mountain battle, he would also managed to survive the assault against Muzan and the Upper Ranks.
- 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 castle collapsing in chapter 183.
- Making a Splash: Murata utilizes the Water Breathing, but isn't at Tanjiro or Giyu'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.
- Older Than They Look: It can be easy to assume he's within the same age range as Tanjiro's group due to his appearance and behavior, but he is actually closer in age to Giyu, as it's revealed that they both took part in the same Final Selection.
- 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 Water Breathing user, but Murata is seemly so weak that his moves don't even produce the visual effects for water like Tanjiro and Giyu 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.
Voiced by: Nobuhiko Okamoto (Japanese), Zeno Robinson (English)
A Demon Slayer who took and passed the same entrance exam as Tanjiro. He is also the younger brother of the Wind Hashira, Sanemi Shinazugawa.
- 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 Kokushibo before being saved by his brother Sanemi. He gets put back together by eating a piece of Kokushibo's hair with the help of Muichiro.
- Big Brother Instinct: Genya's brotherly instincts have returned after entering into puberty and after the Swordsmith Village Arc. In chapter 4 of the second light novel, Genya stops an angry Demon Slayer member from harming the girls at the Butterfly Estate while in a enraged state. He single-handedly catches a vase that was thrown by the member and manages to convince the member to calm down.
- Big Little Brother: Reaching puberty had done wonders to Genya, like making him tower over his brother Sanemi in height.
- 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 Ranks. The Demon Blood Art he used against Kokushibo has taken elements of Hantengu's Hate emotion's ability to grow trees and Kokushibo'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 Kokushibo, 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 Kokushibo's hair to heal his body. On top of that, it also grants him power copying capabilities, where he can temporarily use the powers of the demon he consumes, like parts from Hantengu and Kokushibo (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 Breathings 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.
- Also to Inosuke, to a certain extent. Both are short tempered, angry members of the Corps, but are almost polar opposites of each other. After completing the final selection test, Genya was so impatient, that he attacked Ubuyashiki's daughter whereas Inosuke was so impatient, that he left. They both encountered Tanjiro after attacking an innocent and got their bones broken by him as a result, but their reactions were completely different: Genya attacked Ubuyashiki's daughter and Tanjiro broke his arm and he hated him because of this and refused to talk to him, until they eventually become friends. Inosuke, on the other hand, brutally beat up Zenitsu and Tanjiro broke his ribs in order to stop him. Inosuke was impressed by his opponent and started fighting back, laughing and giving him a rather tough fight and instead of avoiding him like Genya, he kept trying to provoke Tanjiro to fight him again. Genya also doesn't wield swords, while Inosuke is a dual wielder. Genya also can not use Breathing techniques, whereas Inosuke invented his own Beast breathing technique. Appearance wise, Genya is covered in scars that make him look rather scary. Inosuke, on the other hand appears scary because of his Boar mask and is actually a Bishōnen underneath it.
- Ghost Memory: When Genya eats demons that have a large saturation of Muzan's blood, he can hear his voice and conversations with the demon that he ate.
- Good Old Fisticuffs: Apart from his Demon Art and his gun, Genya is one of the few Demon Slayers that doesn't employ a sword in combat in spite of being issued one after his selection. Thus, he also employs hand-to-hand combat.
- 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 Breathings, 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 Kokushibo. The first time was when Kokushibo defeated Muichiro, and Genya attempted to help out by shooting him, getting his body and limbs sliced horizontally for his trouble. The second time was during Kokushibo'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 Kokushibo.
- Made of Iron: Eating demons had probably raised his body's durability, as shown when he gets his torso and arms cut off by Kokushibo, 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 Kokushibo, 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.
- Never My Fault: He refuses to accept Tanjiro broke his arm because he assaulted one of the Ubuyashiki girls because they didn't give him a Nichirin blade immediately as he demanded. However, when he mellows out later on, he reconsiders his actions and apologizes for his harsh behavior.
- 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 Kokushibo'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 Kokushibo, it is unclear for some chapters if he can regenerate half of his head or not. Later its made clear that he can't, and he only gets a a few moments to speak with his brother before passing away.
- Used to Be a Sweet Kid: Genya was a loving and protective brother in his childhood, always protecting his younger siblings, providing support and care to his mother, and admiring his big brother Sanemi very much. But things had changed when the demons attack their village and Genya grew up bitter and sad. However, all of his times bonding with Tanjiro brought back his loving personality and was able to reunite with Sanemi again.
- 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 (Japanese), Dorothy Elias Fahn (English)
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 Kokushibo.
Yoriichi is the foundation of all Breathing teachings, later labeled as Sun Breathing, 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 Breathing 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.
- All-Loving Hero: Though Yoriichi has a hard time expressing it, he holds all human life to be sacred. Often times, he is willing to put his own life on the line in order to help other people and even became a Demon Slayer to prevent Muzan and his demons from destroying lives. Destroying that sanctity is a good way to earn Yoriichi's ire. He doesn't see all demons as evil things that he needs to kill. Right after he fought Muzan, Yoriichi noticed Tamayo was not a threat and managed to console her when she was crying due to Muzan's escape.
- 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.
- Birthmark of Destiny: Yoriichi was born with a Demon Slayer Mark, something that other powerful characters only awaken in the most life-threatening of situations. The mark also puts incredible strain on the body, but had no negative effects on Yoriichi at all, even living into old age despite the mark killing all other users by age 25. The unique nature of Yoriichi's mark is speculated in-universe to have started the spread of the marks to other swordsmen, and his brother believes that it is proof that Yoriichi was "blessed by the gods".
- Broken Ace: Yoriichi is the greatest, strongest demon slayer in history and the most powerful character in the story. He is still haunted by his failure to kill Muzan, his brother becoming a demon and how he could not protect his family from demons, being a far sadder man than anyone truly knew.
- But Now I Must Go: He left Sumiyoshi's home after teaching the Sun Breathing and leaving behind his earrings to continue his fight against Muzan.
- Cain and Abel: His relationship with Michikatsu, his older brother, wasn't perfect. Especially when Michikatsu harbored envy towards Yoriichi for his invention of 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 Demon Slayer Mark and that he had improved 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.
- Childhood Friend Romance: Not long after leaving his family's home at age seven, Yoriichi came across a young girl name Uta who had lost her family to disease, and the two became inseparable friends living together as they had no one else. Ten years after meeting, they became a couple and were expecting a child, but it ended tragically as both Uta and their unborn child were killed by a demon shortly before the birth while Yoriichi was away searching for someone to assist with the delivery. The loss of his young family was the reason that drove him to join the Demon Slayer Corps and swear revenge against Muzan.
- Cradle of Loneliness: After coming home only to discover his wife and their unborn child had been killed by some demon, Yoriichi held them in his arms for 10 days. He only stopped when a demon slayer (implied to be Rengoku's ancestor) came and broke him out of his shock enough to give the dead a proper burial.
- Curb-Stomp Battle: Yoriichi did this to Muzan. He cuts Muzan into pieces almost immediately and is unable to fully recover due to the Breathing's stifling effect on his regeneration. He is only able to survive by splitting himself into 1800 pieces and fleeing in terror, and even then Yoriichi is able to slice up 1500 of his pieces instantly. To top it all off, the wounds Yoriichi inflicted have not healed in the centuries since their encounter, acting as a permanent reminder of Muzan's helplessness and terror during that moment.
- 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.
- Dramatic Irony: His wish was to live a happy life with his family, but lost it all when a demon killed them when he was away. His own twin brother who wanted to be strong just like Yoriichi already had that when the two met up again as adults, but gave it up in pursuit of strength.
- The Dreaded: To Muzan, as Yoriichi was the demon slayer who almost killed him. Even as an old man on deaths door, Kokushibo knew he stood no chance of defeating him.
- Dull Eyes of Unhappiness: He had these for most of his life, signifying his alienation from other people due to his see-through-sight, along with his search for his purpose in life. Then later, his failure in defeating Muzan protecting his family and others with his strength.
- 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 after his wife and unborn child were killed in his twenties, instead choosing to die alone 60 years later 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 Breathing 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. Interestingly, Yoriichi had compared his wife Uta's eyes to obsidian the day he met her.
- Friend to All Children: Yoriichi loved children very dearly. It was his dream to become a father for his and Uta's unborn child and his interactions with Sumiyoshi's children have been very kind and gentle.
- From Nobody to Nightmare: A benign example. Though he had incredible talent, Yoriichi was perfectly content with living a peaceful life with his family because he didn't like hurting people. Then Uta is killed with their unborn child because of a demon, and the resulting Heroic BSoD has Yoriichi dedicate his life to ending Muzan. Even though he wasn't successful (although he was very close to doing so), his techniques and skills remained as part of the Demon Slayers and Muzan is still terrified of him centuries later.
- 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. He also didn't see the envy and despair fermenting in his own twin brother's heart until it was too late.
- Greater-Scope Paragon: He is the creator of the breathing style, with Sun Breathing being the progenitor of all breathing styles. He almost killed Muzan in their battle and Yoriichi handed down his earrings to Tanjiros ancestor.
- 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 jealousy and impotent rage.
- Happily Married: His marriage with Uta was the happiest and most peaceful time of his life, and he wanted nothing more than to continue his life just like that. Unfortunately, it didn't work out due to circumstances beyond his control.
- Heartbroken Badass: Yoriichi started his life-long career as a demon slayer after his wife and child's death, never seeking personal happiness again. His heart was broken a second time when his brother chose to become a demon.
- Heroic BSoD: Had a huge one after discovered the bodies of his wife and unborn child in their house. Even after the worst had passed, Yoriichi never quite recovered and chose to live his life alone, dedicating himself to the single goal of killing Muzan.
- 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 he ultimately failed to kill Muzan, and couldn't protect his wife and unborn child or prevent his brother from walking the path of a demon.
- Horrifying the Horror: Muzan, who's a Humanoid Abomination is terrified shitless at him.
- 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.
- I Just Want to Be Normal: In contrast to his brother, Yoriichi just wants to have a mundane life free of conflict with his wife and family. Unfortunately, Muzan and the demons made that impossible and Yoriichi ended up locked on the path of the sword in order to purge the world of their evil, outright saying that he was born specifically to slay Muzan.
- 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.
- Implausible Fencing Powers: His swordmanship was so inhuman, that a combat training dummy modelled after him to train Demon Slayers had to be installed with six arms to even begin to emulate his techniques.
- Inexplicably Awesome: Yoriichi is a complete anomaly within the series due to his strength. No explanation is ever truly given for why he was so inhumanly powerful and skilled, other than being "blessed by the gods". He was simply born that strong, having access since birth to Full Concentration Breathing, the Demon Slayer Mark and the 'Transparent World', techniques that take incredible amounts of effort for others to achieve but were simply a fundamental part of Yoriichi's life.
- Invincible Hero: Yoriichi went his entire life unchallenged in battle, utterly trivializing the skills of anyone he fought. Both his brother Michikatsu/Kokushibo, the strongest of the Twelve Kizuki by a very large margin, and Muzan, the most powerful demon to ever exist, stood no chance against him at all. He dealt with them as if they were just ordinary demons.
- Long Dead Badass: Yoriichi has been dead for centuries by the time of the present story, but his influence on the setting is still heavily felt.
- Manly Tears: He sheds tears before his fight against Kokushibo, 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 Breathing form 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. And in his youth, he was the only one who was very close to defeating Muzan.
- My Greatest Failure: He never forgave himself for failing to kill Muzan, knowing how many would die as a reuslt. His failure to protect Uta and their unborn child never left him either.
- 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.
- No Good Deed Goes Unpunished: Yoriichi saved Tamayo from Muzan's control, however, the other Demon Slayers argued that this was against their rules and Yoriichi ended up getting banished from the organization.
- 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. But, the first time he actually cried was when he went to visit Sumiyoshi and cried when he was playing with Sumiyoshi's child Sumire because she showed him what he would miss with his own unborn child.
- Old Master: As an over-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 Kokushibos 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 over-80-year-old man, no longer had the hanafuda earrings. By that point, he had already passed his will on to Tanjiros ancestors. Yoriichi taught Sumiyoshi the Sun Breathing when he humored his wife Suyako's desire to see him practice once, then passed his earrings to them after that. Sumiyoshi pledged to pass down the earrings and Sun Breathing down his family out of gratitude for saving his life.
- The Perils of Being the Best: Yoriichi being the strongest demon slayer to ever exist in the story has brought him nothing but constant misery and loss, all he ever wanted to do was to live a happy life without ever relying on his immense strenght to get by, as his hidden strenght unitentionally caused a succession dispute between his older twin during their childhood; to note, the happiest moments of his life was just living quietly with his wife for a few years, where his strenght wasn't needed at all.
- Reality Ensues: Yoriichis skill may have been as sharp as it was during his prime but at over-80 years of age, his body just could not go any further and Yoriichi passed away before he could deliver the finishing blow to Kokushibo.
- Red Is Heroic: Yoriichi wears a red haori and has a mysterious power that allows him to turn his Nichirin Sword from black to red.
- 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 Kokushibo by surprise, but it only slashed his neck. After that, Yoriichis life just expired, and he died standing with his sword in hand.
- This is how his battle with Muzan went as well. The first second, Muzan launches just one attack at Yoriichi which the latter dodges. The second after, Muzan is literally trying to hold his body together in vain after Yoriichi cut him up into pieces with his red blade.
- Single-Target Sexuality: He only has eyes for Uta. After the death of his wife and unborn child, he never finds love and starts a family again since Uta was the only woman he ever loved.
- 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.
- Super Speed: An absolute master of the Flash Step. All his battles ended with one swing of his sword and then the demon trying to figure out what the hell happened in that split-second.
- 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.
- Tears of Joy: Yoriichi cries when he plays around with Sumiyoshi's child Sumire because she reminded him of his own child that he wished to have.
- Tragic Dream: Yoriichi tells Sumiyoshi (Tanjiro in his memory) that all he wanted was to live in a small, quiet home with his wife Uta and their newborn child, both of whom were killed by a demon.
- Tragic Keepsake: As a child, Yoriichi was given the hanafuda earrings by his mother and a handmade wooden flute by his twin Michikatsu. While he passed on the hanafuda earrings to Sumiyoshi and his family line, he never stopped carrying his brother's flute, not even when in death as an 85-year-old man, long after Michikatsu became the demon Kokushibo. The flute was kept encased in a small piece of fabric, with the same pattern as his long-deceased wife Utas kimono; Yoriichi kept the memories of his most cherished people close to him through all his life
- 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.
- Tranquil Fury: His face is shown to be visibly angered when he encountered Muzan for the first time.
- When He Smiles: The last time Yoriichi ever smiled was when he left Sumiyoshi, who gave him a You Are Better Than You Think You Are speech.
- 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 after a one-sided Single-Stroke Battle. Literally the only reason that he didn't win his final fight against Kokushibo was that he was at least eighty 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 over eighty. Likewise, the only reason he didn't kill Muzan was because he paused his onslaught to ask Muzan what he thought of all the lives he took, which gave Muzan the opening he needed to escape.
- You Are Better Than You Think You Are: Sumiyoshi tells him that his life did have meaning despite his failures since he saved Sumiyoshi and his family. His descendant Tanjiro echoes that sentiment 400 years later, by saving Tamayo's life (which she later provides the medicine needed to return Nezuko back to human) and taught the Sun Breathing/Hinokami Kagura to the Kamados, gave the Demon Slayers a critical advantage in the final battle against Muzan and to fulfill Tanjiro's personal mission to return Nezuko's humanity. Yoriichi is so touched that he gives one last heartfelt smile to them before he left forever.
Voiced by: Yuri Ehara (Japanese), Reba Buhr (English)
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 Tanjiro, Zenitsu, and Inosuke volunteered to go in her place.
- Making a Splash: The second Fanbook reveals Aoi is a Water Breathing user as well; it is the most common Breathing style within the Demon Slayer Corps.
- 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.
- Ship Tease: With Inosuke in the penultimate chapter, invoking from him a Luminescent Blush and an uncharacteristically tender smile when she gives him his own personal plate of food; eventually they become a couple, as the series final volume confirms Aoba Hashibira is their descendant indeed.
- 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 Tanjiro 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, Tanjiro 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 voiced by: Ayumi Mano (Japanese), Michelle Marie (English)
Kiyo Terauchi voiced by: Nanami Yamashita (Japanese), Jackie Lastra (English)
Naho Takada voiced by: Yūki Kuwahara (Japanese), Kimberly Woods (English)
Three young girls who work as servants at 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 butterfly 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.
- Parental Abandonment: It's implied by Kocho all three girls lost their parents and families to demons and were taken into the Butterfly Estate to support them.
- Precocious Crush: All three girls have a crush on Tanjiro since he's so nice and friendly to them. Although in chapter four of the second light novel, Sumi might have developed an attraction to Genya when she properly meets him in the Butterfly Estate after the Swordsmith Village arc. This happened because Genya stood up to protect the girls when an angry Demon Slayer member had a breakdown at the estate. After the situation calmed down, Sumi was in charge of caring for Genya and later on decided to bond with him after getting to know him.
Voiced by: Makoto Furukawa (Japanese), Derek Stephen Prince (English)
A member of the Kakushi, the clean-up brigade of the Demon Slayers.
- Big Damn Heroes: It's implied that he was among the Kakushi who helped assist the Demon Slayers in preventing Muzan from escaping.
- Car Fu: Implied that he was among the Kakushi who drove the cars in the city to ram into Muzan's giant baby form to slow him down.
- 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, Goto 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, Goto 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.
A member of the Kakushi and also the head uniform maker for the Demon Slayers.
- All Men Are Perverts: Oh he's definitely a pervert big time. In fact, he was the one repsonsible for making the Stripperific Demon Slayer uniform for Mitsuri. He made some for Shinobu and Kanao too, but Shinobu immediately burned those uniforms right in front of him.
- Butt-Monkey: No one respects this guy. And for good reason too because he's a massive pervert. His reputation is so bad that he even called the attention of Shinobu and Sanemi, who both gave him a good scolding for his behavior.
- Nerd Glasses: He wears a pair of round glasses to help him see.
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 used 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.
Voiced by: Manaka Iwami (Japanese), Abby Trott (English)
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.
- Blunt "Yes": When Zenitsu's moping about himself falling behind Tanjiro in the Rehabilitation Training arc.Zenitsu: It must be because I'm a lost cause, isn't it?
Zenitsu: Did you... just agree with me? How can you be so cruel? Would it kill you to say something like "you're doing your best" even just this once?
- Dark and Troubled Past: In a little extra trivia in the first databook, it is revealed that Chuntarous parents were killed by demons, showing that he actually enrolled in the Demon Slayer Corps as a Kasugaigarasu, he wasnt raised for the task like the other crows, explaining why theres a sparrow amongst a group of crows at all.
- 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".
- 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: Yūki 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 who was able to kill most of the demons, resulting in all of the others besides him surviving 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.
- 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 Tanjiro, 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 were both 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 were actually 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 gathering.
- Affectionate Nickname: Tengen called Hinatsuru as just Hina once, implying it is how he affectionally treats her, in the Upper-6 fight, however, Tengen called Hinatsuru by her full name whenever she was in danger.
- 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 naturally whenever they feel it's the right time.
- Beauty Mark: Hinatsuru has a mole below her left eye.
- Big Damn Heroes: Hinatsuru saves Tengen and Tanjiro at a critical moment during their fight with the Upper Rank-6, launching a Flechette Storm of wisteria-coated kunai at the demon and creating an opening for them to strike back.
- Damsel in Distress: Tengen lost contact with his three wives on a demon slaying mission, Suma and Makio in particular were captured by Daki herself, forcing Uzui to recruit the main characters in order to find and rescue them.
- 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.
- Flechette Storm: Hinatsuru possesses several boxes that can conceal and launch dozens of poisoned kunai at an enemy. Even a single kunai hitting its target is enough to briefly affect an Upper Rank-level demon.
- 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.
- Kissing Cousins: The second Databook reveals Makio is actually related to Tengen, she is his cousin.
- 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.
- Multicolored Hair: Makio has black hair with light brown bangs.
- Ninja: All three of them are ninja, and along with Uzui they're some of the few that are still left.
- Poisoned Weapon: They all wield kunai that have been coated in wisteria poison.
- Polyamory: All three of them are married to Uzui. According to the second Databook Suma was actually Tengens first promised wife, eventually Hinatsuru and Makio were married off to him as well and Suma supported the idea.
- The Three Faces of Eve: Suma is the child that is emotional, Hinatsuru is the wife who is mature and supportive, and Makio is the seductress who is brash and the most aggressive in her advances.
- Ambiguous Gender: The gender of Chachamaru is unknown.
- Big Damn Heroes: During the final battle against Muzan, it jumps in to save the Hashira as they begin succumbing to the effects to Muzan's cell-destroying blood, injecting them with an antidote that cures the poison and allows them to continue fighting.
- Cats Have Nine Lives: Chachamaru invokes this trope, as the cat is seemingly slashed to pieces by Muzan but is able to survive and be reassembled by Yushiro. It is revealed that Yushiro had turned the cat into a demon some time prior.
- Cute Kitten: Chachamaru is a pretty adorable little cat who's friendly enough to allow Tanjiro to pat its head.
- Heroic Sacrifice: It jumps right into the thick of the battle with Muzan to save the poisoned Hashira despite getting injured in the destruction of the Infinity Castle, and gets swiftly cut apart by Muzan once he realizes what it is doing.
- Kill the Cutie: Being an adorable cat doesn't save it from suffering a brutal death at Muzan's hands. Though it turns out it is Not Quite Dead.
- Perception Filter: As a feline, it does not posses any magical powers. However, it does manage a spell of invisibility cast on it by Yushiro by meowing whenever it arrives to collect blood.
- Undying Loyalty: Chachamaru is very loyalty to Tamayo and later Yushiro after Tamayo's death.
- 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 Rank, he thought he died and and went to heaven since he was being hugged by a cute girl 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.
- Berserk Button: Anyone who damages or loses his swords makes him go into wild bouts of anger. Because of this, he doesn't have that many clients aside from Tanjiro.
- 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 Rank 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.
- Large Ham: Haganezuka is a larger-than-life character when it comes to creating swords, using overly dramatic, flowery language to describe his craft and flying off the handle completely if he feels his work is disrespected in any way.
- Manchild: Is 37 years old, but throws tantrum like a kid when it comes to swords. The manga even sometimes points out his age when he gets pissed at Tanjiro.
- Meaningful Name: The first character of his name literally reads as "steel" (鋼), the material he works with as a swordsmith.
- 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 an Upper Rank while he's at work restoring Yoriichi's blade? Nah, ignore the enemy, this is priority. This actually works in his favor, as said Upper Rank 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 buys his favorite food to calm himself down according to the Volume 8 extras.
Voiced by: Eiji Takemoto (Japanese), Kyle Hebert (English)
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.
- He Had a Name: Kanamori invokes this trope during his encounter with Upper Rank 5 Gyokko, as he recognizes each individual swordsmith that is part of the horrifying corpse sculpture that the demon presents.
- 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.
- Big Damn Heroes: He saves Muichiro's life by helping to break the water-prison that Gyokko had trapped him in, despite being assaulted by small fish demons while doing so. He nearly dies in the process but is saved once Muichiro fully breaks free.
- 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.
- Meaningful Name: Quite appropriately, he shares a name with a famous blacksmith: Nagasone Kotetsu, whose blades have been patronized (and attributed to) a number of legendary swordsmen.
- 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.
- Put on a Bus: He's hasn't been seen after the swordsmith arc, implying that he traveled along with the rest of the villagers to find a new location to resettle everything. He came back along with the other swordsmiths to visit Tanjiro and everyone one last time.
- Small Role, Big Impact: He is a relatively minor supporting character that only appears in one arc, but his actions, such as helping Tanjiro discover the blade for his ultimate sword or saving Muichiro's life, played a huge role in making many of the Demon Slayers' future victories possible.
- Took a Level in Kindness: From Muichirou's flashback, Kotetsu is briefly shown to be in a happier state, so it's safe to say that he's cooled down after the swordsmith arc.
- 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 (Japanese), Laura Post (English)
Live actor: Mimi Maihane (Stage Play)
A demon doctor in Asakusa who Tanjiro encounters. She helps him try to cure Nezuko.
- Androcles' Lion: In a sense. Yoriichi spared Tamayo's life after she was freed from Muzan's control at the cost of being exiled from the Demon Slayer Corps. Centuries later, Tamayo helps develop the drugs that allow the Demon Slayer Corps to finally end Muzan for good.
- 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.
- Badass Boast: She gives a very nice one about how she and the Demon Slayer corps plan to kill Muzan no matter what.Tamayo: I don't have to be stronger than you if I can make you weaker. Just as you will do anything to live, we will do anything to kill you.
- Batman Gambit: When she injected Muzan with the perfect cure for demonism, she was fully expecting him to be able to disolve it. Albeit incapacitated for some hours by it, Muzan emerges victorious from the drug and gloats in her despaired face as he kills her. Except that it was all an act by Tamayo to make him think that the drug only did that. By the time Muzan realizes there are other effects, it is in the middle of the Final Battle and he can't stop to dissolve them, which in the end spells his doom.
- 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.
- Big Good: Alonside Kagaya, Tamayo is the main force of opposition against Muzan, and in fact the key "quest" that Tanjiro works around is about collecting blood samples from demons for her to study and develop a cure for demonism. Fittingly, she and Kagaya are the ones who orchestrate Muzan's final downfall, with complete success. Kagaya's efforts are centered around creating the situation to bring him down and providing military support in the form of his corps, while Tamayo' efforts are the thing that actually make it possible for Kagaya's organization to gain an edge (turning them from Badass Normal to Empowered Badass Normal that can withstand the harmful effects of blatantly supernatural Demon Blood Arts) into defeating Muzan's henchmen and ultimately kill the man himself. They may be the first casualties of the Final Battle, but they certainly have the last laugh.
- Broken Tears: After breaking free from Muzan thanks to Yoriichi, she sheds these before they evolve into Berserker Tears as she declares her hatred towards her former master and tormentor.
- Crazy-Prepared: The medicine she and Shinobu used to try to make Muzan human again had three other medicines mixed in it, all in order to make sure that Muzan was defeatable. One of them causes rapid aging, which eventually starts slowing him down, another one stops him from trying to divide himself to escape, and the last one starts to destroy his cells. She also created many more, which is pivotal to save a demon-possessed Tanjiro and finally break him free from Muzan's clutches.
- 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, but not after she injected her Magic Antidote on him that lead to his long and painful degeneration and eventual death.
- Defiant to the End: She tells Muzan to go to hell and demands her family back. Even when she is summoned by him later to demand what she had done to him, she tells him off and says to use his multiple brains to figure it out. When he realizes he can't escape by dividing himself, she comes back to tease him about it and the fact that she also put another substance in the medicine to cause cell destruction.
- 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: Spectacularly subverted. 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. Tamayo seems to be in despair later on as he kills her, but halfways through the Final Battle it's shown that it was all an act to lure Muzan into a sense of security, as the drug had several additional effects specifically readied to further weaken him and remove his abilities in the event that he could dissolve the primary component.
- Good Eyes, Evil Eyes: Much later into the series it is show Tamayos eyes used to look more like those of a fierce demon, when she still was bound to Muzans will; after she breaks free from Muzan's curse her eyes become more similar to that of a human, although with a very sad expression. But when she faces her tormentor once more, they return to its fierce form, signifying how she despises him and how she wants him gone.
- HeelFace Turn: Long ago, Tamayo was a vicious demon who served Muzan after despair from killing her family led to her embracing her demonic nature. She has since repented and become a kind doctor who wishes to see Muzan fall. How she was able to break out of Muzan's control was with the help of Yoriichi. When he almost defeated Muzan, Muzan escaped, but his control over Tamayo broke, allowing her to regain her own free will again.
- 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.
- Laser-Guided Karma: Despite being one of the chief Big Goods of the series and playing the single most pivotal role in the final battle, Tamayo is still damned to enter hell alone for the atrocities she committed in the past after first becoming a demon. This is poignantly conveyed in the color spread for chapter 204, which shows all the heroic characters who died during the final arc happily walking together to the afterlife, while Tamayo is solemnly out-of-focus and alone in the background facing the opposite direction, showing that she is not going to the same place.
- Magic Antidote: After doing research with Nezuko's blood and the blood of both the Lower and Upper Ranks, 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. Fortunately for the heroes, Tamayo and Shinobu's well-prepared to create another effect from the medicine that makes Muzan rapidly age... then avoid cell division, and finally to destroy them from within.
- Not Quite Dead: Tamayo is seemingly killed by Muzan after he overcomes the effects of her drug, and what's left of her is absorbed into his body. However, her consciousness is able to persist within her absorbed cells and Muzan briefly communicates with her in his mind during the final battle, forming her cells into the shape of her head. She takes the opportunity to mock him for his ignorance about his Rapid Aging before Muzan disperses her and just reads her memories instead. Tamayo's physical body may be destroyed, but her mind is still around and doing whatever she can to impede Muzan.
- 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.
- Really 700 Years Old: She's the second oldest character in the series, having been a demon already at Muzan's side almost 500 years ago, outdoing even the likes of Kokushibou and Akaza.
- The Starscream: A rare sympathetic example, since she didn't want to be there and how she detests Muzan that she wants to get out and to kill him as well. She was apparently his right hand woman 400 years ago given that he kept her close to him, but she refused to help him when Yoriichi was cutting him down.
- 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. But, it turns out she was absorbed through Muzan's hand and dwells inside his body.
Voiced by: Daiki Yamashita (Japanese), Kyle McCarley (English)
Live actor: Hisanori Satō (Stage Play)
A young man who was turned into a demon by Tamayo.
- All Love Is Unrequited: He's madly in love with Tamayo, but she doesn't accept his romantic feelings for her since she still hasn't gotten over her husband's and children's deaths.
- Ascended Extra: He plays a prominent role in his introductory arc, but afterwards he only gets very sporadic, brief appearances. In the Infinity Castle Arc he plays a much bigger role, especially on the Final Battle.
- 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 her.
- 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 castle in order to support Tanjiro, Giyu, Mitsuri, and Iguro.
- 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.
- Determinator: After Tamayo's death, it's heavily implied that Yushiro will follow her soon, but he still lives long enough to help the main characters and the Demon Slayer Corps against Muzan and the Twelve Kizuki, long enough to avenge Tamayo as well. Thankfully, its later shown he can keep on living without her, at least on a physical level, as its strongly implied he was planning to kill himself.
- Driven to Suicide: Arguably. Its strongly implied that he plans on killing himself after the Final Battle, as Tamayo is dead. Tanjiro tries to talk him out of it, but Yushiro leaves without saying anything else, making his fate uncertain. He eventually overcomes his grief and dedicates his life to portraying Tamayo's beauty through painting.
- 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 to die alone. Considering that the receiver's quite an ass himself, it's a pretty nice send-off.
- 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.
- "Just Joking" Justification: He proposes that he and Tamayo flee and leave Tanjiro and Nezuko to fight the demons who'd tracked them down. When Tamayo is horrified, Yushiro quickly insists that he was kidding.
- Last of His Kind: Following Muzan's final defeat and death, Yushiro becomes the last demon in the world. He is still around even in modern times.
- 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 Infinity Castle to start crumbling.
- Loophole Abuse: Tamayo warns him that she won't tolerate him hitting Tanjiro. The next time Tanjiro offends Yushiro, Yushiro throws him, then points out that Tamayo didn't say anything about throwing Tanjiro. Tamayo points out that it isn't any better.
- 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 Infinity Castle and allowing Iguro and Mitsuri to join Tanjiro and Giyu.
- 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 Castle and allow Iguro and Mitsuri to regroup with Tanjiro and Giyu.
- Reclusive Artist: As an In-Universe example, in the Distant Finale set in modern-day Tokyo, he became one, to the point that he would threaten anyone who would interview him with a rifle.
- Rage Breaking Point: He absolutely snaps after Tamayo's death and does all he can to bring Muzan down by destroying the Infinity Castle.
- Really 700 Years Old: He is at the very least 200, given that this alone is the time Tamayo took to fully turn him into a demon.
- 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. After Tamayo's death, he never fell in love with anyone again and spent his entire life single.
- 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.
- Sole Survivor: As a demon, Yushiro outlives the entire cast in the modern era epilogue. Kiriya Ubuyashiki also lived to the modern era, but as a human mortal he will eventually die of old age leaving Yushiro as the only living proof that Tamayo and the Demon Slayer Corps ever existed.
- Support Party Member: Albeit he has some combat ability, his utility based skills and ilusion talismans are the crux of his power. He especially leans on this role during the Infinity Castle arc, as he provides the Demon Slayer corps with his eye talismans, allowing Kiriya to oversee the entire operation and map the Castle. Also, when the final showdown with Muzan erupts at the end of the arc, Yushiro focuses on assisting fallen slayers and Hashira to allow them to rejoin the battle. This ends up being immensively important and one of the key factors of the victory as the Heroic Second Wind several of the Hashiras get thanks to this is key in finishing off Muzan, not to mention his eye talisman also allowed Iguro Obanai to continue fighting in spite of getting his eyes torn off.
- Tears of Joy: Sheds this after Muzan's defeat.
- Tragic Keepsake: He kept Tamayo's hairpin as the last reminder of her after she was killed by Muzan.
- Tsundere: He can be blunt and brash, but can also show a sweeter side to him, even if he denies it. He congratulates Tanjiro for overcoming his demon transformation back to human, but comically shuts down Tanjiro before leaving.
- Vegetarian Vampire: Like Tamayo who turned him, he only needs a bit of blood to survive and doesn't need to hunt humans.
- When He Smiles: Yushiro gives a warm smile when visiting Tanjiro at the Butterfly Estate one last time.
- You Gotta Have Blue Hair: Its has three colors. A clear green in center of his scalp, which turns to mint green as it goes down and finally into black tips.
- Your Head Asplode: During the fight with Yahaba and Susamaru, he ends up getting his head blown off by Susamaru's temari ball. Due to being a demon, he regrows it, though it takes a few minutes.