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Fun Facts About Demon Slayer: Kimetsu no Yaiba

Demon Slayer: Kimetsu no Yaiba is a big favorite here at The Otaku Box, and among the characters, I especially love the wonderful Nezuko. While I am busy finding more merch for subscription boxes, I want to share some facts about the show and, of course, the absolute cutest demon!

Fire Plays an Important Part

Tanjiro uses Hinokami Kagura: Dance
Demon Slayer, Season 1, Episode 19 || Credits:

Nezuko and Tanjiro’s family worked with fire; even their last name, Kamado, refers to a traditional charcoal-fuelled stove. They respected fire, and we see their father, during a flashback, perform a traditional dance in a ring of torches on New Year’s Day.

This may partly explain why both siblings have fire-based powers, with Nezuko able to manipulate demonic flames from her blood that don’t hurt humans.

Nezuko Appears to be a Different Kind of Demon

Nezuko crawls out of the box
Demon Slayer, Season 1, Episode 14 || Credits:

This is obvious from the story's beginning, as Nezuko retains some of her humanity and does not harm the people she loves. Sanemi Shinazugawa later tests her, and she refuses to bite him, turning her head in disgust.

Also, instead of using human blood to regenerate, Nezuko can recover with sleep.

The Demon Slayer Mark

Tanjiro fights to protect Nezuko
Demon Slayer, Season 1, Episode 14 || Credits:

The Demon Slayer Mark appears after experiencing life-threatening conditions, usually when a demon attacks.

Tanjiro’s mark awakened after he was attacked by a demon called Gyutaro. The marks look like tattoos or scars and grant the bearer extra abilities to help them in battle. They can gain increased speed, strength, and agility.

Demon marks also come with a price, as most with it die by the age of 25. Tanjiro’s Demon Slayer Mark is on his forehead and resembles a flame pattern.

The Perfect Seiyu

Nezuko in Tanjiro's arms
Demon Slayer, Season 1, Episode 19 || Credits:

Akari Kitō is the voice actress who plays Nezuko in the anime. Interestingly, one of the kanji used to spell Akari Kitō’s name is the kanji that means ‘demon.’ Nezuko and Akari are also the same height, standing 5 feet tall!

The Hashira

The Hashira sitting together
Demon Slayer, Season 1, Episode 23 || Credits:

The Hashira are the most powerful members of the Demon Slayer Corps, and it usually takes a demon slayer years of training to be skilled enough to join the group. There are currently seven of them out of the nine initially presented. To become one, a Demon Slayer must kill fifty demons or one of the strongest demons belonging to the Twelve Kizuki (those under the direct command of the Demon King).

The Hashira each are masters of a unique breathing style —which might even be created by themselves— and have authority over a given region, protecting the humans that live there and knowing about any demon activity on their land.

Demon Slayer Ancestor

Tanjiro Kamado fights the demon Rui
Demon Slayer, Season 1, Episode 19 || Credits:

The siblings potentially come from a mighty lineage of sword-wielders. In the manga, Tanjiro dreams of his ancestor, Sumiyoshi, and the two have very similar facial features. Some even think their family is linked to the first Breath of the Sun user, which may be why Nezuko is such a unique demon.

Sibling Bond

Nezuko protects Tanjiro
Demon Slayer, Season 1, Episode 1 || Credits:

This fact is obvious, but Nezuko and Tanjiro have an unfathomable sibling bond. Right from the first episode, we see Nezuko protecting Tanjiro, which is unexpected as other demons have been known to eat their family.

Tanjiro, in turn, shows his devotion and love for his little sister on many occasions. He does this through significant actions and trivial things, like carrying her while she sleeps. Ultimately, their bond gives them strength, as they can combine their powers in new, more effective ways.


Matsuemon Tennoji is one of the Kasugai Crows in Kimetsu no Yaiba
Demon Slayer, Season 1, Episode 15 || Credits:

The Demon Slayer Corps uses birds to deliver messages. Known as Kasugai Crows, each bird is assigned to a member and is responsible for delivering missions from the corp headquarters!!

These special crows can speak, and while they might look very similar at first, they have distinct and fun personalities!. Also, despite being called Kasugai Crows, one is a sparrow.

Zenitsu’s assigned bird, Ukogi (nicknamed Chuntaro), whose family was killed by demons, is the only sparrow in the series that has passed the test to become a Kasugai Crow! Although, unlike his mates, he can’t speak.

Blue Spider Lilies

Blue Spider Lilies from Kimetsu no Yaiba
Demon Slayer, Season 2, Episode 8 || Credits:

If I asked you to tell me an anime that shows Red Spider Lilies, you could promptly list many excellent titles! Whenever I see one in anime, I can tell something intense is about to happen. These flowers are associated with death so strongly that they are sometimes called “the death flower” or “red flower of death.”

However, in Demon Slayer: Kimetsu no Yaiba, there’s a mythical version of the famous flower: The Blue Spider Lily!

Blue spider lilies are rare plants that only bloom for two or three days a year during the daytime or may not even bloom. Due to their properties, they were an essential ingredient of medicine for Muzan Kibutsuji's treatment centuries ago when he was still a human — and the reason he turned into a demon!

Many Events Take Place At Real Life Locations

Tanjiro under Wisteria trees
Demon Slayer, Season 1, Episode 4 || Credits:

Demon Slayer: Kimetsu no Yaiba is a historic anime whose events occurred during the Taisho era (1912 to 1926). While much of it is purely fictional, some places visited by Tanjiro and Nezuko across Japan exist in real life!

Locations such as Mount Kumotori, Asakusa district, and others that appear in the series can be visited and should be part of the itinerary of any Demon Slayer fan visiting Japan!

Despite not being explicitly mentioned, other places bear a solid resemblance to locations from the real world. The similarities attract cosplayers looking for the perfect photos and otaku looking to feel closer to the world of Kimetsu no Yaiba.

For instance, the wisteria trees in Mount Fujisaki from the Final Selection arc look much like the ones from the Ashikaga Flower Park. Also, the interior of Muzan’s Infinity Castle can be compared to the famous Ashinomaki Onsen in Fukushima Prefecture.

In Nara prefecture, a massive stone called “itto-seki” is split in half, making it a special location for fans who wish to recreate the scene from Tanjiro’s training.

Eiichiro Oda Praises Demon Slayer

Zenitsu, from Kimetsu no Yaiba, looks happy
Demon Slayer, Season 1, Episode 15 || Credits:

According to Anime News Network, at the Jump Festa '21, Luffy's voice actress read aloud a message from Eiichiro Oda, the creator of One Piece, that complimented Demon Slayer manga for its success. He even mentioned that the series touched him!

Final Considerations

One impressive thing about Demon Slayer: Kimetsu no Yaiba is that the more I follow the exciting adventures of Tanjiro and Nezuko, the more interesting facts I can find about the show. It’s like a fun detective game!

What is the best part of the anime for you? And what would you like to learn more about?

You can always send your suggestions through my socials. Or join the Otaku Community to share information about all kinds of anime with fans like you and me!

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