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Kamado Family

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    Tanjuro Kamado 

Tanjuro Kamado

Voiced by: Shin-ichiro Miki (Japanese), Kirk Thornton (English)

https://static.tvtropes.org/pmwiki/pub/images/tanjuro.jpg
The father of Tanjiro Kamado and Nezuko Kamado and his other children and the husband of Kie Kamado.
  • An Axe to Grind: He only needed an axe to fight off and behead a bear.
  • Art Evolution: In the manga, Tanjuro looks quite ghastly for the first time he is seen, in the flashback during the first time Hinokami Kagura is shown; much later in the series in another flashback during the Akaza fight, Tanjuro looks slightly less spent, as Gotoge’s art has changed a little by then, where Tanjuro much looks closer to his son Tanjiro than before.
  • Happily Married: To Kie Kamado.
  • Good Scars, Evil Scars: He has scar in the same place as his son, Tanjiro.
  • Incurable Cough of Death: He died from an incurable disease a year ago before the start of the series.
  • Martial Pacifist: He's a very skilled fighter, but he tried to warn a dangerous bear to leave when it came to his area. It didn’t heed his warning and was beheaded as a result.
  • Nice Guy: He's a kind and gentle person who loves his family very much. Even when he has to fight a bear, he didn't show any hard feelings towards it and he even gives a prayer for it after he defeated it.
  • Papa Wolf: He is very protective of his family as seen with his fight against a dangerous bear.
  • Posthumous Character: By the time the story starts Tanjuro had already been dead for a year, felled by an unspecified illness, he however is the protagonist’s father and seemed to have imparted some important life lessons and some techniques that prove to be pivotal in many events later in the story; with that his son Tanjiro recalls key moments in the past where his father Tanjuro taught him something, using that knowledge to slay the demons Tanjiro encounters throughout the series.
  • Weak, but Skilled: Tanjuro looks outright ghastly due his illness in flashbacks, yet his Breathing techniques allowed him to perform physical feats that his body shouldn’t be able to handle, like performing his ritual of the Dance of the Fire God in the snow for hours upon hours without getting tired.

    Kie Kamado 

Kie Kamado

Voiced by: Houko Kuwashima (Japanese), Dorothy Elias Fahn (English)

https://static.tvtropes.org/pmwiki/pub/images/kie_kamado.jpg

The mother of Tanjiro Kamado, Nezuko Kamado, and her other children and the wife of Tanjuro Kamado.


  • Beauty Mark: One on the left side of her mouth.
  • Happily Married: To Tanjuro.
  • Hard Head: According to the Databook, Tanjiro got his from her. Apparently, she's even able to beat a wild boar with a headbutt.
  • House Wife: She usually stays at home and looks after her kids.
  • Plot-Triggering Death: Her death, along with the deaths of four out of her six children, is what kicks off the plot.
  • Take Care of the Kids: She asks her son, Tanjiro to look after his sister, Nezuko in the afterlife.
  • Sorry That I'm Dying: She apologizes to Tanjiro for leaving him alone to look after Nezuko in the afterlife.
  • We Hardly Knew Ye: She along with her other children (except Nezuko) were tragically killed at the beginning of the series.

    Kamado Siblings 

Takeo, Hanako, Shigeru, and Rokuta

Voiced by: Yo Taichi (Takeo), Konomi Kohara (Hanako), and Kaede Hondo (Shigeru) (Japanese), Michelle Ruff (Takeo), Ryan Bartley (Hanako), and Jessica DiCicco (Shigeru) (English)

They are the younger siblings of Tanjiro and Nezuko and the children of Tanjuro and Kie.
  • The Baby of the Bunch: Rokuta was the youngster sibling of the Kamado family.
  • Big Brother Worship: Shigeru and Hanako love and adore their older brother, Tanjiro.
  • Beauty Mark: Takeo has a mole beneath his right eye.
  • Death of a Child: Their deaths are one of the reasons Tanjiro sent off his journey to become a Demon Slayer and search for the demon who killed them.
  • Plot-Triggering Death: Their deaths, along with the death of their mother, are what kick off the plot.
  • The Speechless: Rokuta was the only sibling who never talked before his death. It makes sense since he was a toddler.
  • We Hardly Knew Ye: They were tragically killed by Muzan.

    Sumiyoshi 

Sumiyoshi

https://static.tvtropes.org/pmwiki/pub/images/kny_sumiyoshi.jpg
The Kamados' ancestor from four centuries prior to the events of the series, a humble coal burner and seller. Sumiyoshi once was just a simple man living his life with no big aspirations, however, an encounter with a legendary Demon Slayer made him and his entire bloodline be connected to the Sun Breathing legacy.
  • Alliterative Family: Sumiyoshi had a wife named Suyako and a daughter named Sumire.
  • Happily Married: To Suyako.
  • He Will Not Cry, So I Cry for Him: He was such a gentle man that he cried for Yoriichi's pain when Yoriichi himself wouldn't.
  • I Owe You My Life: Yoriichi once saving Sumiyoshi from falling prey to demons made the coal seller express utmost gratitude towards his savior, wanting to pass Yoriichi's life story, if nothing else, to his descendants. Sumiyoshi ended up passing something more tangible to his descendants than a mere tale.
  • Instant Expert: This man learned Sun Breathing just from watching Yoriichi practice one time. Every other Demon Slayer including Yoriichi's twin brother tried and failed to do so despite years of training in the blade.
  • Nice Guy: The kindness and respect of the family generations all originated from Sumiyoshi, one of the kindest and loving characters.
  • Only One Name: As a peasant from the Sengoku period, he had no surname. The Kamado name was likely integrated much after his generation.
  • Photographic Memory: He has astounding memorization capabilities, and he can memorize entire sword styles just from watching them used once. Tanjiro later accesses these memories to improve his Sun Breathing.
  • Strong Family Resemblance: He looks exactly like his descendant Tanjiro Kamado, both in appearance and personality. And his daughter Sumire resembles their descendant Nezuko Kamado when she was a child.

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Ubuyashiki Family

    Kagaya Ubuyashiki 

Kagaya Ubuyashiki

Voiced by: Toshiyuki Morikawa (Japanese), Matthew Mercer (English)

The blind leader of the Demon Slayer Corps.


See here for tropes regarding him.

    Amane Ubuyashiki 

Amane Ubuyashiki

https://static.tvtropes.org/pmwiki/pub/images/amane_2.jpg

The wife and caretaker of Kagaya Ubuyashiki.


  • The Caretaker: She takes care of her husband, Kagaya.
  • Exotic Eye Designs: Amane's large purple eyes have the same unique spiraling design as her children.
  • Happily Married: To Kagaya.
  • Ms. Exposition: Amane appears at the Hashira meeting following the Swordsmith Village arc in Kagaya's stead, and is the one to explain the nature of the Demon Slayer Marks to all present.
  • Together in Death: Since she refuses to leave her husband to die alone, she decides to die with him along with her elder daughters in an explosion to ensnare Muzan and bring in the Hashira to finish Muzan.
  • Ugly Guy, Hot Wife: Downplayed, as Kagaya is only ugly due to his condition marring his appearance, but Amane is noted to be exceptionally beautiful, with Muichiro initially believing her to be a spirit upon first seeing her.

    Kiriya Ubuyashiki 

Kiriya Ubuyashiki

Voiced by: Aoi Yuuki (Japanese), Mela Lee (English)

One of children of Kagaya and the only son. He succeeded the leadership of the Demon Slayer Corps as its 96th leader.
See here for tropes regarding him.

    Elder Ubuyashiki Sisters 

Hinaki and Nichika Ubuyashiki

The oldest of the sisters among Ubuyashiki Kagaya's children.
  • The Caretaker: Like their mother, both of them are willing to look after their father and help him out when he's unable to do anything.
  • Daddy's Girl: Both of them love and care for their father deeply. Their love for their father so strong that they are willing to stay by his father's side along with their mother to die in the explosion to ensnare Muzan.
  • Emotionless Girl: Downplayed. Both of them rarely show any emotions besides their default smiles due to the fact their parents raise them to grow up fast instead of having a normal childhood. The only time they show their emotions is by giving their heartwarming smile to their younger siblings before their deaths.
  • Identical Twin ID Tag: Both of them look exactly identical to each other and the only way to tell them apart is by the color of their ribbon headpieces; Hinaki wears a red ribbon headpiece on the right of her head, and Nichika wears a yellow ribbon headpiece on the left of her head.
  • Strong Family Resemblance: Both of them bear a strong resemblance to their sisters.
  • Together in Death: Since they refuses to leave their father alone, they decides to die with him along with their mother in an explosion to ensnare Muzan and bring in the Hashira to finish Muzan.
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    Younger Ubuyashiki Sisters 

Kanata Ubuyashiki

Voiced by: Shiori Izawa (Japanese), Christine Cabanos (English)

The daughter and one of the lastborns of Kagaya Ubuyashiki. She currently serves her older brother, the current head of the Ubuyashiki Household, Kiriya Ubuyashiki.
  • Get A Hold Of Yourself Man: She slaps Kiriya to get him out of his state of despair after Muzan recovers from his cocoon. Kiriya regains his composure and thanks Kanata and Kuina, who both shed Tears of Joy for Kiriya's resolve.
  • Identical Twin ID Tag: Like her elder sisters, she looks exactly identical to Kuina and the only way to tell them apart is by their sides of their elongated wisteria headpieces.
  • Not So Stoic: She rarely slows any emotions and she didn't react after Genya punched her, but after her parents and older sisters were killed in the explosion, she briefly break down in tears until her brother told her to stop crying and focus on the battle.
  • Strong Family Resemblance: She bears a strong resemblance to her sisters.

Kuina Ubuyashiki

The youngest daughter of Kagaya Ubuyashiki. She currently serves her older brother, the current head of the Ubuyashiki Household, Kiriya Ubuyashiki.
  • Identical Twin ID Tag: Like her elder sisters, she looks exactly identical to Kanata and the only way to tell them apart is by their sides of their elongated wisteria headpieces.
  • Strong Family Resemblance: She bears a strong resemblance to her sisters.

Rengoku Family

    Shinjuro Rengoku 
The father of Kyojuro and Senjuro and the former Flame Hashira. He retired and gave his position to his eldest son Kyojuro.
See here for tropes regarding him.

    Ruka Rengoku 

Voiced by: Megumi Toyoguchi

https://static.tvtropes.org/pmwiki/pub/images/ruka_kny.jpg
Shinjuro's wife and the mother of their two children: Kyojuro and Senjuro; an apparently strong-willed woman who passed on her will and morals towards her oldest son Kyojuro, much of his character seems to have been shaped by her; however, Ruka's strong will inhabited a weak body, she fell to illness years before the story had begun.
  • The Lost Lenore: Her death heavily impacted the Rengoku household, her husband Shinjuro lost all his will to continue being the Flame Hashira coupled with him losing faith in his abilities after reading on the Sun Breathing capabilities, with the eldest son Kyojuro trying to shoulder the weight of his family all by himself.

    Kyojuro Rengoku 
The Flame Hashira.
See here for tropes regarding him.

    Senjuro Rengoku 

Voiced by: Jun'ya Enoki

The younger brother of Kyojuro Rengoku and the son of Shinjuro Rengoku and Ruka.
  • Big Brother Worship: He loved his big brother very much and always admired him.
  • Extreme Doormat: He has been put through unspeakable abuse by his father, going through it all without saying a word.
  • Hereditary Hairstyle: His father and older brother both share his red and yellow hair.
  • Missing Mom: His mother, Ruka died from an incurable disease after giving birth to him.
  • Multicolored Hair: He has blond hair with red streaks.
  • Tragic Dream: He wanted to become a Demon Slayer like his brother. However, due to his lack of skill in the field, Senjuro gave up on that dream and decided to spend his life helping people in other ways.

Other Human Characters

    Saburo 

Voiced by: Masaki Terasoma (Japanese), Jake Eberle (English)

A hermit that lives close to the mountain that Tanjiro and Nezuko used to reside in.
  • Back for the Finale: After Muzan dies and all demons are (apparently) gone, the Demon Slayer corps is disbanded. Tanjiro and Nezuko return home, and the moment he sees them, he brings them into a tearful hug.
  • Properly Paranoid: Saburo makes Tanjiro stay at his place for the night when he is on his way back home from selling charcoal, reasoning that demons could attack him on the way back. Tanjiro didn't believe in the existence of demons and concluded that Saburo is senile due to his loneliness, but Saburo ended up saving Tanjiro's life since Muzan slaughtered his entire family that night.
  • Small Role, Big Impact: Only appears in the first chapter, but Saburo giving Tanjiro shelter the night his family is killed by Kibutsuji Muzan allows him to survive alongside Nezuko, allowing Tanjiro to become a Demon Slayer and pursue Kibutsuji for revenge.
  • The Hermit: Tanjiro mentions that Saburo has been living alone ever since his family died.

    Kazumi 

Voiced by: Lucien Dodge (English)

A villager and he had a fiancée named Satoko, who was kidnapped and eaten by the Demon of the Bog.
  • Innocently Insensitive: Dazed after the realization that his fiancée Satoko was killed by the Bog Demon, Kazumi dismisses Tanjiro's sympathy saying that he can never understand what it is like to lose a loved one. Seeing Tanjiro's very sad smile made Kazumi realize the implications of what he just said to the Demon Slayer and repent.
  • Tears of Remorse: After he realizes that Satoko was already eaten by the Demon of the Bog.
  • Tragic Keepsake: It is implied that he decided to keep Satoko's ribbon bow as a remembrance of her after the Demon of the Bog was killed by Tanjiro.

    Kotoha Hashibira 

Voiced by: Mamiko Noto (Japanese), Jennie Kwan (English)

https://static.tvtropes.org/pmwiki/pub/images/kotoha.jpg
The mother of Inosuke Hashibira, who was killed when Inosuke was a baby.
  • Born Unlucky: Her life absolutely sucked, being married into an abusive family, escaping to the Paradise cult with the infant Inosuke, and then finding out Doma was a demon eating his followers and was killed and eaten by him after being forced to drop her son off a cliff to spare him.
  • Deceased Parents Are the Best: She loves her son very much and she always sang him the pink promise songs when he was a child. After she discovered Doma's true colors, she decides to drop him off a cliff so he won't share the same fate as her before being killed by Douma.
  • Domestic Abuse: The reason she joined the Eternal Paradise cult? Her husband was incredibly abusive and regularly beat her.
  • Heroic Self-Deprecation: She considers herself stupid for first marrying an abusive man who beat her nearly blind in one eye, then for following the demon Douma which put herself and her son in mortal danger. However, she redeemed her ignorance by saving her son's life in a last-ditch effort.
  • Kindhearted Simpleton: Doma described her as a very kind but unintelligent woman. Given how he viewed his other followers, it is unknown if she truly was as dimwitted as he thought her to be.
  • Morality Pet: Perhaps too strong a term, but Doma seemed as fond of her as he could possibly be of a human being. By his own admission, he enjoyed her purity and had no plans to ever kill her. It was only when she discovered his nature and fled that he acted to kill her. For someone like Doma, this is an unbelievable level of benevolence.
  • Nice Girl: Kotoha was a gentle young mother who loved her son Inosuke very much. She even showed respect for Douma for saving her and her son and always sang for him, up until she found out his true colors.
  • Posthumous Character: She died when Inosuke was just a baby, having been killed by Doma after she tried to escape his cult.
  • Silk Hiding Steel: Nobody can deny Kotoha's courage when it counted. Upon discovering Doma's true nature, she refused to believe his lies and fled, giving her all to save her baby son at the last moment.
  • Strong Family Resemblance: Inosuke bears a strong resemblance to her, which is why Douma realizes who he is.

    Koinatsu 
https://static.tvtropes.org/pmwiki/pub/images/koinatsu_149260.jpg
An oiran working in the Yoshiwara Red Light District who befriends Tanjiro.
  • Beauty = Goodness: She is considered one of the most beautiful courtesans in the district, rising to the status of oiran, and is also one of the kindest characters in the series. This contrasts with Daki, who is in a similar position but embodies Beauty Is Bad.
  • Benevolent Boss: She treats the girls working under her very well, and they view her as a big sister figure in return.
  • Damsel in Distress: She is kidnapped by Daki and held within her sashes in an underground cavern. She is rescued by Inosuke and Uzui's wives.
  • Foil: She serves as one to 'Warabihime', aka Daki. Both are High-Class Call Girls renowned for their beauty, but Koinatsu treats all around her with kindness and respect while Daki is cruel and petty to those who work with her. Daki also puts on a very fake and transparent Yamato Nadeshiko act when in public, but in private or when in her true demon form she is as far from ladylike as possible, while Koinatsu is very genuine in her behavior both in public and in private, embodying the traditional qualities of the trope.
  • High-Class Call Girl: She works as an oiran, a type of Japanese courtesan.
  • Nice Girl: She is incredibly kind to everyone around her, particularly her assistants. She also treats Tanjiro very well despite immediately seeing through his disguise.
  • Onee-sama: She has a sisterly relationship with the girls who work as her assistants, treating them kindly and rewarding them with candy often. They are saddened when she informs them of her engagement and departure.
  • Retirony: Koinatsu becomes engaged to a client and plans to retire from her work as a courtesan, but she gets kidnapped by Daki the night before she was to depart.
  • Single Woman Seeks Good Man: She works as a courtesan in the hopes of meeting a decent man who will marry her and provide her with a good life away from the district. She eventually meets a man who proposes to her, but she is kidnapped the night before she leaves.
  • Unknown Rival: To Daki, who views her as a rival for the status as most beautiful oiran in the district. Koinatsu is unaware of Daki's resentment towards her and is very shocked when she is attacked and kidnapped.
  • What Happened to the Mouse?: She is never seen or mentioned again after getting rescued by Inosuke.

    Yuichiro Tokito 
https://static.tvtropes.org/pmwiki/pub/images/kny_yuichiro.jpg
The older twin brother of the Demon Slayer and Mist Hashira Muichiro Tokito.
  • An Arm and a Leg: He lost his left arm from a demon.
  • Cruel to Be Kind: Yuichiro was deliberately mean to Muichiro because he believed Muichiro's kindness would eventually spell out his death just like their father's kindness caused both him and their mother to die, leaving them both alone. Even in death, Yuichiro tries to sternly tell out his younger brother for choosing to die fighting instead of running away to live another day. He is forced to admit that he didn't want Muichiro to die after the Mist Pillar sternly rebutted that he is satisfied that his death had meaning.
  • Foil: To his ancestor Michikatsu Tsugikuni aka Kokushibo. Both were older twin siblings that had younger siblings whom were ultimately were destined for far greater than they would ever be. However, Yuichiro acknowledged the qualities he lacked that Muichiro had were what made his brother a special person and accepting he would never be special himself. Meanwhile, even in the end, Kokushibo is still unable to fully understand where he went wrong in his life and was becoming resentful toward his special brother, throwing away everything worthwhile in the process, really showing that his insecurities really blinded him for what was important. To fully illustrate their differences, Kokushibo was dragged into Hell without anyone to accompany him, while Yuichiro reunites with his twin brother in the afterlife, while being sad at the realization that his younger twin being special doesn't mean that he's immune to any misfortune.
  • Identical Twins: He was an identical twin brother of Muichiro.
  • Polar Opposite Twins: With Muichiro. While Muichiro was idealistic, friendly, eager, polite, and optimistic, Yuichiro is cynical, hot-headed, narrow-minded, rude and pessimistic.
  • Posthumous Character: He died before the start of the series.
  • Together in Death: With his brother Muichiro after he perishes during the fight with their ancestor Kokushibo. He is deeply saddened that Muichiro had also died young.

    Keizou 
https://static.tvtropes.org/pmwiki/pub/images/kny_keizou.jpg
The mentor of Hakuji and the father of Koyuki.
  • Badass Normal: He only needs his Soryuu Style martial art to handle against foes.
  • Bare-Fisted Monk: His martial art, the Soryuu Style, only requires the use of bare hands and feet to fight. It's even in his philosophy, where despite not being a samurai, he doesn't need to wield a sword to protect people.
  • Cool Old Guy: He's an aged adult and a very friendly and humble man who helped Hakuji step back on the right path.
  • Defeat Means Friendship: He was called by fellow villagers to stop an angered Hakuji from fighting the samurai that wronged him. After trying to talk him into joining his dojo and admiring his skills, he decides to challenge Hakuji to a friendly match and swiftly wins. Later, he allows Hakuji into his dojo and to help take care of his ill daughter. Keizou was always open and friendly towards Hakuji and developed a deep mentor and student bond with him, even allowing him to succeed the Soryuu Style dojo.
  • Heartbroken Badass: His wife committed suicide when she lost hope for their daughter's health and this clearly hurts Keizou, making him feel guilty for not being able to do enough for both of them.
  • Humble Hero: He's a very humble man who uses his martial arts to protect people, while he makes his daily wages through handyman work. He obtained his Soryuu Style Dojo because he saved an elder man from a group of bandits and was rewarded his land and old dojo. However, there was a rival dojo who wanted that land for themselves and shamed Keizou out of spite. Keizou didn't mind, but this caused him to not gain any pupils until he met Hakuji and trained him as his first.
  • Martial Pacifist: He only needs to use his Soryuu Style martial art to protect people. Other than that, he'd rather talk things through and is shown to be very relaxed.
  • Nice Guy: He's a very friendly man who cares for the well being of people. He even allows Hakuji to become his student despite knowing that he's a banished criminal from Edo and let him take care of his ill daughter Koyuki.
  • Papa Wolf: He loves his daughter very much and did his best to keep her safe and healthy. He also looks after Hakuji almost like a father figure for the young boy.
  • Passing the Torch: When Hakuji turned 18, he proved to Keizou that he was ready to become the Soryuu Style Dojo's next successor and Keizou even allowed him to marry his daughter, knowing that both of them had bonded and were very much in love with each other.
  • Stepford Smiler: He's always shown to be happy and smiling, but deep down, he's still hurt over his wife's suicide and his daughter's ill condition. It was thanks to Hakuji that he managed to find peace within himself.
  • The Mentor: He decided to become Hakuji's martial arts master and taught him the Soryuu Style, which became the foundation for Akaza's fighting style.
  • Too Good for This Sinful Earth: He was a very humble and friendly man. Unfortunately, he had gotten poisoned by the rival dojo because they could not best him or Hakuji in sparring.

    Koyuki 
https://static.tvtropes.org/pmwiki/pub/images/kny_koyuki.jpg
The daughter of Keizou and lover of Hakuji.
  • Apologises a Lot: When she was sick, she always apologized to Hakuji for being a burden and having him taking care of her daily while missing out the chance of going outside like the other youths did. Hakuji didn't mind, but he certainly felt uncomfortable when she cried often.
  • Because You Were Nice to Me: She fell in love with Hakuji because he didn't treat her as fragile or someone to pity. Instead, he treated her as a caring friend.
  • Brooding Boy, Gentle Girl: She is the Gentle Girl to Hakuji aka Akaza's Brooding Boy.
  • Exotic Eye Designs: She has flower-shaped pupils.
  • Ill Girl: Koyuki was born with a weak body and remained ill for most of her life. It was the efforts and care of Hakuji that helped her recover and she was able to enjoy a normal life for the first time.
  • Luminescent Blush: She blushes innocently and happily when hearing that Hakuji would continue on her father's dojo and when he confesses his love and protection for her.
  • Morality Chain: Losing her was the final step in Hakuji's transformation into the monstrous Akaza. He had no more will to live or care about anything without her. Her spirit is what breaks Muzan's control over Akaza at long last.
  • Nice Girl: She's a very sweet and kindhearted young girl who became Hakuji's best friend and eventually, his lover.
  • Snow Means Love: Koyuki invokes this trope literally, as her name contains the charcters for both "love" and "snow". She had snowflakes as a design motif and her love for Hakuji is what gave him a true sense of purpose in life. This also tragically invokes Snow Means Death, as her death serves as Hakuji's Despair Event Horizon towards his transformation into Akaza.
  • Tender Tears: When she was sick, she would always cry because of Hakuji's kindness towards her, which made him feel uncomfortable internally.
  • The Promise: When Hakuji was nursing Koyuki, he made a promise to her, saying that they would one day see the fireworks when she got better. And their promise finally came true when she finally recovered from her sickness. Hakuji soon made another promise to Koyuki, his Declaration of Protection for her and her father.
  • Too Good for This Sinful Earth: She was a kind and innocent young girl who certainly did not deserve to get poisoned by the rival dojo.
  • When She Smiles: Because she was ill at first, she was always in distress. After Hakuji helped her recover from her sickness, she was able to smile more often.
  • You Are Worth Hell: She follows the repentant Hakuji into hell at the end.

    Uta 
https://static.tvtropes.org/pmwiki/pub/images/kny_uta.jpg
A young girl that a young Yoriichi met during his travels. She befriends Yoriichi and soon, both of them get married when they become adults.
  • Childhood Friend Romance: She became friends with Yoriichi when they were kids and after 10 years, they got married and Uta became pregnant with their child.
  • Happily Married: She's married to Yoriichi.
  • Meaningful Name: "Uta" translates to "song" in Japanese.
  • Motor Mouth: Yoriichi mentioned to Sumiyoshi (actually Tanjiro viewing his memory) that this was a habit of Uta, where she could talk from morning to evening.
  • Nice Girl: She is kind and loving individual.
  • Tears of Joy: Her tears fall from her eyes when Yoriichi asks her to accompany her home after seeing how lonely she was.
  • Too Good for This Sinful Earth: Uta was a very kind girl who made Yoriichi incredibly happy, so of course she had to die tragically at a young age while carrying their child.
  • What Beautiful Eyes!: Yoriichi commented that her eyes were like obsidian when they first met.

    The Doctor (Major Spoilers) 
https://static.tvtropes.org/pmwiki/pub/images/knythedoctor.PNG
A generous doctor from the Heian Period, where Muzan was born in. He was assigned to cure the disease that resided in Muzan, but got offed by him out of anger and impatience. However, the medicine The Doctor gave to Muzan really did cure his disease after all, only to leave Muzan unable to walk in sunlight and thus beginning his start of darkness. The Doctor is a key character as he is technically the one who started the demon lineage through Muzan and his medicine.
  • Elixir of Life: Essentially, his experimental medicine granted Muzan semi-immortality as he is able to live for centuries, but the downside was that it made Muzan weak to sunlight.
  • No Name Given: He wasn't named in Muzan's flashback, only referred to as just "The Doctor".
  • Perpetual Smiler: The only expressions that we see from The Doctor are genuine smiles.
  • Slippery MacGuffin: The Doctor had written in his notes about a medicine called the "Blue Spider Lily", which was the cure to solving Muzan's sunlight weakness and involved the use of a rare variant of the Spider Lily flower. Muzan searched near and far for the Blue Spider Lily to make the medicine for himself, but he hasn't succeeded in finding it. Instead, he chose the alternative to find and absorb a demon with sunlight immunity.
  • Small Role, Big Impact: The Doctor only appears for a few panels, but the entire story would not have happened if it weren't for his attempt to help Muzan.
  • Unwitting Instigator of Doom: The Doctor only wanted to cure Muzan's disease, but unintentionally made him into a powerful monster instead, setting up all of the story's events.
  • We Hardly Knew Ye: All we knew was that he tended to Muzan and his experimental drug turned Muzan into a demon, but it was after The Doctor was offed by Muzan that Muzan realized that his drug really worked and we never hear anything else about The Doctor again.

    Epilogue Characters (Major Spoilers) 

In General

https://static.tvtropes.org/pmwiki/pub/images/knyepilogue.jpg
  • Identical Grandson: Half of them are descendant lookalikes of some main character or another.
    • Sumihiko and Touko in particular are dead ringers for Tanjiro and Nezuko, respectively.
  • Identical Stranger: The other half are also lookalikes...of characters who'd died young and, in some cases, without any living relatives.
  • Last Episode, New Character: All are introduced in the very last chapter of the manga, which takes place in modern day Tokyo.
  • Reincarnation: Yoshiteru wonders about this for all the lives lost fighting Muzan, pondering if they've been reborn to live happier lives. Considering the above, he might be onto something.
  • Reincarnation-Identifying Trait: Although many are obvious reincarnations like Sumihiko or Touko looking exactly like their previous incarnations, there are one or two that are much less obvious, such as the reincarnation for the Tokito twins; the only have one panel for them as babies, and you can only tell who they are being the design of their blanket having the same mist pattern associated with them.

Kanata Kamado

The sixteen year old elder brother of Sumihiko, and a descendant of Tanjiro and Kanao.


  • Dude Looks Like a Lady: He looks like a short haired, male version of Kanao.
  • Holding Hands: With Touko in the epilogue.
  • Kissing Cousins: Is implied to be in a relationship with Touko Agatsuma, the great-granddaughter of Nezuko and Zenitsu, considering their compliments of Touko's beauty and the cover picture of them walking to school holding hands. Given that Tanjiro and Kanao are his great-grandparents, this probably makes them third cousins at most.

Sumihiko Kamado

The fifteen year old younger brother of Kanata, and a descendant of Tanjiro and Kanao.


  • The Baby of the Bunch: He's fifteen and the youngest family member of his family and distant cousins family who are older than him.
  • Embarrassing Nickname: His parkour routine to school has earned him the local nickname of "Running Man" from the children. He's not pleased about it.
  • Heavy Sleeper: Sleeps through his brother's twenty-eight attempts to wake him for school. Said brother promptly gives up and leaves without him.
  • Le Parkour: Upon waking and realizing he overslept, he exits his house (through the window) and races to school, jumping, flipping and vaulting over things (including a police cruiser) along the way.
  • Shared Family Quirks: Inherited a 500 years old trait from his ancestor Suyako, she was an extremely heavy sleeper, sometimes even falling sleep while standing up.

Yoshiteru Agatsuma

The seventeen year old younger brother of Touko, and the great-grandson of Nezuko and Zenitsu.


  • Cassandra Truth: His sister doesn't believe him when he tries to tell her about their ancestors fighting demons.
  • Covert Pervert: Just like his ancestor.
  • I Resemble That Remark!: He comments on how good the reincarnation of Kocho siblings smells not long after Touko calls him creepy for wondering if the infant reincarnations of the Tokito twins are girls.
  • Shared Family Quirks: Fawns over just about any girl he sees, just like his ancestor (and apparently father, if Touko is to be believed in an offhand comment). He's a lot less forward about it, though.
  • Tender Tears: Sheds some when reading Zenitsu's journal about his experiences as a demon slayer.

Touko Agatsuma

The eighteen year old elder sister of Yoshiteru, and the great-granddaughter of Nezuko and Zenitsu.


  • All Women Are Lustful: Inherits Zenitsu's love for anyone attractive of the opposite gender, although she acts less bullheaded about it. She openly lusts over Tenma Uzui in one short scene, and she makes sure to comment on how handsome Kanata is.
  • Holding Hands: With Kanata in the epilogue.
  • Kissing Cousins: Is implied to be in a relationship with Kanata Kamado, shown by the hearts around her when she meets up and greets Kanata at school as well as them complimenting each other's beauty, along with them holding hands. Given that Zentisu and Nezuko are her great-grandparents, this probably makes them third cousins at most.
  • Savvy Guy, Energetic Girl: From what we see of her dynamic with Kanata, she plays the bubbly and lively girl to Kanata's stoic and serious guy.
  • Tsundere: Though she hasn't been seen interacting with many other characters, she currently shows a harsh, violent side to her brother and a sweet, doting side to Kanata.

Aoba Hashibira

A famed botanist, and the descendant of Inosuke.


  • Ditzy Genius: Aoba is the accomplished botanist who discovered the long sought-after Blue Spider Lily, but he accidentally let all the samples that he had gathered and planted wilt.
  • Dude Looks Like a Lady: Like his ancestor Inosuke, Aoba has very feminine features and is mistaken for a girl by Zenitsu's descendant, Yoshiteru.
  • Nature Lover: After receiving backlash for ruining the Blue Spider Lily samples, he is seen sitting outside and expressing a desire to move to the mountains to live alone.
  • Shrinking Violet: Contrast to Inosuke's boisterous attitude, Aoba is rather quiet and doesn't like attention on himself.

Toujuro Rengoku

Sumihiko's friend and classmate, Senjuro’s descendant whose personality resembles that of the Flame Hashira, Kyojuro Rengoku.


  • Le Parkour: Is just as good at it as Sumihiko, and they even chat while they're hopping all over the place and being chased by the police.

Tenma Uzui

The twenty year old gymnast and Tengen's descendant.


Side Story Characters

    Yae 
https://static.tvtropes.org/pmwiki/pub/images/kny_yae.png
A young woman that Giyu Tomioka encounter on his travels in Giyu Tomioka Gaiden 1 after her father, Matazo transforms into a demon.
  • Interrupted Suicide: After her father is killed, she attempts to kill herself out of depression until Shinobu stops her.
  • Revenge: She is looking for the demon who killed her family and her dog, Taro.
  • Sniper Rifle: Yae's father taught her how to use a gun when she was a child.
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