Kagaya Ubuyashiki | Demon Slayer Kimetsu No Yaiba

kagaya ubuyashiki

I know what eternity is. Eternity is a human feeling. Only human feelings last forever… and are eternal.

Kagaya Ubuyashiki to Muzan Kibutsuji in UndyingKagaya

Kagaya Ubuyashiki (産うぶ屋や敷しき 耀かが哉や Ubuyashiki Kagaya?) is a major supporting character in Demon Slayer: Kimetsu no Yaiba. He is the 97th leader of the Demon Slayer Corps[2], primarily known as Oyakata-sama (お館やかた様さま? lit. “Master”) by his subordinates and peers, and is also the head of the Ubuyashiki family.


Kagaya has fair skin and shoulder-length black hair. He bears a curse mark that slowly kills him and makes his skin look like it’s rotting away. This mark extends across his face and covers his eyes, rendering him unable to see. Muzan, upon Kagaya’s death, described him as having the smile of a Buddha.

He usually wears a black kimono with a long white haori with a pink and purple pattern that starts at the lower back and waist.

kagaya ubuyashiki - demon slayer shop


Kagaya has a calm demeanor and shows genuine care towards the members of the Demon Slayers, even considering them his children. He takes criticism well and is honest about his weaknesses, including his inability to become a Demon Slayer despite his status as the main leader. To compensate, he remembers every member of the body and visits deceased members in their graveyard daily, until he can no longer move due to the curse.

While he may seem lenient, he demonstrates reason and no prejudice, as evidenced by the fact that he accepted Tanjiro and Nezuko’s situation (via a letter from Sakonji Urokodaki) and even championed their cause when others thought otherwise. His way of speaking, although generally fluent and soft, is extremely delicate; he uses words and intonations in such a way that his interlocutor listens to him. His tactful and charismatic speech is even able to make people like the initially passive Muichiro Tokito and the impulsive Sanemi Shinazugawa listen to what he has to say without saying or conveying anything that might affect them. upset.

With his own, like his children, Kagaya is rather strict due to the curse that hangs over their family. He nevertheless shows the same aura and gentle demeanor towards them.


Kagaya became the leader of the Demon Slayer Corps when he was only 4 years old. Kagaya first met Amane when she was 13 when she was 17. She was specifically chosen by a priest to become Kagaya’s wife to take care of his medical needs, but he only agreed to the marriage on the condition that she take care of him of her own free will.


Supernatural Abilities

Soothing Voice : Kagaya possesses the ability to put others at ease just by the tone of his voice and the rhythm of his actions, as was done with Tanjiro Kamado and the Hashira.

Foresight: In addition to his special voice, Kagaya (and the rest of the Ubuyashiki family) possess a high level of foresight that allows them to avoid dire situations and has allowed them to amass a large amount of wealth and fortune. Using this instinct, Kagaya made several accurate guesses about multiple things that ultimately turned out to be true and correct without his knowledge of any prior information, such as when he accurately predicted that Muzan’s only remaining weakness was the sun and could not be destroyed by decapitation, that the death of Gyutaro and Daki would cause waves that would cause the upper ranks of the Twelve Kizuki to begin losing limbs for the first time in hundreds of years,

Kagaya Ubuyashiki - Demon Slayer Shop


  • Kagaya shares the same Japanese and English dubbers as Seijiro Kikuoka from Sword Art Online.
  • Kagaya’s Japanese voice actor, Toshiyuki Morikawa, is also the voice actor for the main antagonist Naraku of the Inuyasha series. Ironically, in a way, Naraku can be seen as a parallel version of Muzan (both are manipulative and want to achieve “perfection”).
  • As Kagaya says, the disease he is currently suffering from is the curse inflicted on his family for giving birth to the “Original Demon”. The disease itself is a genetic disorder passed down from generation to generation in their family, it effectively left the Ubuyashiki family with weak bodies and a lifespan of less than 30 years.
  • His first name contains the kanji for “Shine” (耀 Kagaya) and “How” (哉 Ya), the Ya in 耀 is not included and is replaced by the kanji 哉. His surname contains the kanji for “Bear” (産 Ubu), “House” (屋 Ya), and “Discard” (敷 Shiki).


  • (To Tengen Uzui) “Tengen, the path you have chosen is difficult. It’s hard to reject the values you learned as a child. You must always fight against yourself as you fight on the battlefield. But despite your many inner conflicts and contradictions… I trust you to always fight for me and to protect innocent lives. Thank you Tengen, you are a wonderful child. »
  • (To Mitsuri Kanroji) “Mitsuri, you are especially beloved by the gods. Be proud of your strength. Those who speak ill of you fear your talent and are simply envious! »
  • (To Sanemi Shinazugawa) “I’m sorry. I tried to wield the sword but my heart was racing and I couldn’t even do it ten times. I would have been like you if I could. I wanted to be a powerful swordsman and protect other people’s lives with my own body. But… it was impossible for me. I am sorry to have to ask you to perform such difficult tasks […] If you are pawns… then I am also a piece to be sacrificed. And if a single piece, even a piece like me, that moves the Demon Slayer Corps were to die, nothing would change. This is your first time attending a Hashira gathering, so I think you are mistaken. I don’t place myself above you or anything like that. But everyone treats me like that. If that bothers you, you don’t have to. Instead of worrying about it, defend the lives of others as Hashira. This is my only request. »
  • (To Sanemi Shinazugawa about Masachika Kumeno) “Sanemi…all the children of the Demon Slayer Corps write their own wills. Strangely, the content of these wills is most often similar. Masachika’s was the same. I thought about giving it to you. Masachika thought of you as the younger brother he lost. He dreamed of a bright future. Just like my dream. A wish for loved ones to smile. To live happily ever after until the day they die and never see their lives cruelly threatened. Even if we can’t be with them. We want them to live. We want them to survive. »
  • (To Muichiro Tokito) “You must not be inflexible in your way of thinking, Muichiro. When you regain your confidence, you will become stronger. »
  • (To Muzan Kibutsuji) “And that’s because… I’m dying to defeat you, Muzan. »