Stop hand.png


Click To Help Dr. Wily!
Dr. Wily has declared that this article is still under construction.
Please don't delete or edit this article yet, it may contrast with the original author's edits.
After I finish this article, the world will be mine! MWAHAHAHAHA!
This article's content is marked as Mature
The page Mature contains mature content that may include coarse language, sexual references, and/or graphic violent images which may be disturbing to some. Mature pages are recommended for those who are 18 years of age and older.

If you are 18 years or older or are comfortable with graphic material, you are free to view this page. Otherwise, you should close this page and view another page.

Kyogai, also known as the Drum Demon, is a supporting antagonist in Demon Slayer: Kimetsu no Yaiba anime and manga series. He was a former member of Twelve Demon Moons and the former Lower Six, until he was driven out by Muzan Kibutsuji due to his weakness. He later went on a quest to reclaim his title. He serves as the main antagonist of the Drum House Arc.

He is voiced by Junichi Suwabe in the Japanese version, and by Steve Blum in the English dubbed version.


While being a bloodthirsty oni/demon, Kyogai is actually very collected and soft-spoken, and always mummurs things that irritate him. He is also shown to be intolerate towards rudeness and will kill anyone who barge into his house. Even so, if irritated enough, Kyogai will raise his voice about the nuisance and insult his opponents. But deep down, Kyogai is an insecure man who desires to be recognized by the world through his writing skill.



Kyogai was once a human who aspired to be a writer. Unfortunately not only there was no one to understand or appreciate his dream, people sneered and outright ridiculed his talent. To make matters even worse, his skill at drum which he practiced as a hobby in his spare time, was also mocked and unrecognized. Life as a human was a struggle for Kyogai who suffered being constantly ignored. Then at some point in his life, he met Muzan Kibutsuji, received his blood and turned into an Oni.

In spite of being an Oni, he was still attached to his human dream of being a writer. So he hid his newfound powers and continued to live among humans. Then one day he showed his completed scripts to his editor, hoping for positive feedback. But Kyogai's editor not only verbally insulted Kyogai by denouncing that Kyogai's work is a waste of papers and pencil, but trampled Kypgai's scripts with his foot. That was the last straw for Kyogai. Consumed with demonic urge, Kyogai turned Oni and brutally slaughtered his editor.

Giving up on being writer and human altogether, Kyogai devoured as much humans as he could since, becoming stronger and elevating himself onto one of the Lower 6th rank in Twelve Demon Moons. But somewhere along the line, he slowly began to consume less and less humans - a sign of Oni reaching his evolutionary limit. Discovering that Kyogai had reached his limit, Muzan stripped Kyogai of his title of 6th Lower Ranker of Twelve Demon Moons. Relegated to his manor and weakened due to him reaching his capability limit, Kyogai sought how to reintegrate into Twelve Demon Moons. To fulfill his wish, humans with special type of blood - blood that possesses nutrition value 100 times that of ordinary human blood. A human boy named Kiyoshi possessed such blood, and he would seek the human boy to devour him.

Drum House Arc




           Kimetsu no Yaiba logo.svg Villains


Demon King
Muzan Kibutsuji

Twelve Demon Moons
Original Upper Moons †
One: Kokushibou † | Two: Douma † | Three: Akaza † | Four: Hantengu † | Five: Gyokko † | Six: Daki † & Gyuutarou

Replacement Upper Moons †
Four: Nakime † | Six: Kaigaku

Lower Moons †
One: Enmu † | Five: Rui † | Six: Kyogai (replaced) † Second: Hairou † |

Muzan's Lesser Followers †
Susamaru and Yahaba † | Hand Demon † | Swamp Demon † | Spider Family † (Father Spider † | Mother Spider † | Brother Spider † | Sister Spider †) | Snake Demon

Tengan Uzui's Father | Iguro Family | Douma's Parents

Community content is available under CC-BY-SA unless otherwise noted.