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Liven up conversations with Demon Slayer trivia and fun facts

Did you know that Demon Slayer: Kimetsu no Yaiba is packed with deep worldbuilding and intriguing little easter eggs? There are lots of surprising facts and hidden details behind its characters and setting.

Learning about them will definitely deepen the way you experience the series! In this piece, we’ll unravel the appeal of Demon Slayer in a clear, accessible way for everyone.

Even if you’ve read the story or watched the anime, you might have missed some of these details.

Enjoy exploring the world of Demon Slayer trivia and fun facts!

Demon Slayer trivia & fun facts to spice up conversations (11–20)

It’s thanks to a certain old man that Inosuke Hashibira, who was raised in the mountains, can speak.

It’s thanks to a certain old man that Inosuke Hashibira, who was raised in the mountains, can speak.

Inosuke lost his mother when he was still a baby and was raised in the mountains by boars.

Since boars don’t speak human language, Inosuke shouldn’t have been able to speak either.

However, he met the grandfather of a young man named Takaharu and learned language from him.

While Takaharu drove Inosuke away as a strange animal, the grandfather doted on Inosuke like a grandson and read him poems from the Hyakunin Isshu.

Thanks to that, he learned to speak.

It was also this grandfather who told him that his name is Inosuke Hashibira.

Genya Shinazugawa ate demons because he lacked talent as a swordsman.

Genya Shinazugawa ate demons because he lacked talent as a swordsman.

Genya Shinazugawa, a Demon Slayer who joined at the same time as Tanjiro.

He is the younger brother of Sanemi Shinazugawa, the Wind Hashira, and enlisted in the Corps to follow in his brother’s footsteps.

Although he passed the Final Selection, he lacked talent as a swordsman and, in desperation, began consuming demons.

Through this, he discovered his unique physiology and learned to fight by gaining power from eating demons.

Despite wanting a Nichirin Sword during the Final Selection, he fought using a gun.

Many of you might have thought, “Huh?” Apparently, he does carry a sword as well.

The pelt that Inosuke Hashibira wears is the fur of the boar that raised him.

The pelt that Inosuke Hashibira wears is the fur of the boar that raised him.

If we had to name Inosuke’s most distinctive trait, it would definitely be his boar headgear.

Many people have probably wondered why he wears it.

In fact, that headpiece is made from the hide of the boar that raised him.

After being separated from his mother by death, Inosuke was taken in and raised by a boar.

Since this happened when he was just a baby, the boar—though an animal—became a precious parental figure to him.

Perhaps he wears it so he never forgets that presence.

It’s also an interesting touch that beneath the boar mask lies a face so beautiful it shocks everyone.

Mitsuri Kanroji’s socks were a present from Obanai Iguro.

Mitsuri Kanroji’s socks were a present from Obanai Iguro.

When it comes to Mitsuri Kanroji and Obanai Iguro, they’re known for having feelings for each other.

The original work depicts them getting along and eating together, as well as Iguro receiving letters from Mitsuri.

One famous episode between the two is that Iguro gave Mitsuri a pair of socks.

Because Mitsuri’s uniform has a short skirt and she felt embarrassed about it, Iguro gifted her the socks.

Iguro is actually not good with women—but the fact that he’s gentle only with Mitsuri is really cute, isn’t it?

When Mitsuri Kanroji was born, she had black hair.

When Mitsuri Kanroji was born, she had black hair.

When you think of Mitsuri Kanroji, her pink and green hair is striking, but she was actually born with ordinary black hair.

The reason her hair changed color is said to be that she ate too many sakuramochi, her favorite food.

Incredibly, she kept eating 180 sakuramochi a day for eight months.

Her eyes were originally black as well, but they also turned green for the same reason.

Normally, overeating wouldn’t cause such changes…

but since she was extraordinary from birth, with a rather unique constitution, perhaps that’s why it happened.

The Demon Slayer Corps’ messengers are crows that understand human speech and can talk.

The Demon Slayer Corps’ messengers are crows that understand human speech and can talk.

In the story, the messenger crows are often met with surprise—“The crow talked!” These crows are called Kasugaigarasu, and each is assigned to a specific corps member.

They relay mission details and sometimes even scold the members.

Conversations between the Kasugaigarasu themselves are entertaining, too.

In the 2025 film Demon Slayer: Kimetsu no Yaiba – The Movie: Infinity Castle, Chapter 1: Akaza’s Return, they shared information with the scattered Hashira and corps members, putting their abilities to use in mapping out the structure of the Infinity Castle.

Fun Demon Slayer trivia and facts to spark conversation (21–30)

Akaza’s name carries an irony.

Akaza’s name carries an irony.

Akaza, who appears in the Mugen Train arc as Upper Rank Three, is shown in the story to have a particular meaning embedded in his name.

Kanji breakdown: “猗” suggests a “strange (unusual) dog,” “窩” means a “burrow” or “den,” and “座” literally means “to sit.” Together, it becomes “a strange dog sitting in a den,” a sardonic twist implying that a guardian lion-dog meant to protect people has become useless.

The nature of this irony ties back to his past before becoming a demon, and starting the story with the idea that it’s an irony can make for an engaging entry point.