Why Did Demon Slayer Become Such a Massive Hit? 5ch Calls It ‘The Shohei Ohtani of Manga’

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The story

Why did “Demon Slayer” become a phenomenon that swept up even non-otaku audiences? That question sparked debate on 5ch’s “Nandemo Jikkyo G” board. The thread kicked off with personal stories of fathers who never watch anime — and even in-laws — watching every single episode and crying. Posters brought up “Housekeeper Mita” (a drama that scored huge ratings right after the 2011 Tohoku earthquake) to argue that in times of crisis, people crave classic, straightforward storytelling. Anime fans, meanwhile, offered a harsher take, calling the characters and setting “generic,” which clashed with defenders who argued that sticking to a tried-and-true formula was exactly the show’s strength. The gender split among viewers, and the fact that the sequel film raked in roughly 40 billion yen at the box office, also came up, with opinions remaining divided by the end.

What people said

1AnonymousSep 24, 2026 21:39
My dad, who never watches anime at all, watched every single episode, and even my wife's mom apparently cried her eyes out.
4AnonymousSep 24, 2026 21:41
If that's enough to make you cry, plenty of manga would make you cry.
26AnonymousSep 24, 2026 21:51
Re: #4
The huge thing is it pulled in people who'd never read manga before.
Even if hardcore otaku would rate the content as, at best, mid-tier.
30AnonymousSep 24, 2026 21:53
Re: #26
Good or bad, it's a dead-straight, textbook shonen manga through and through.
98AnonymousSep 24, 2026 23:14
I think Demon Slayer is plenty entertaining, honestly.
By the "otaku standard" Re: #26 is talking about, name a few manga that are actually more interesting than Demon Slayer.
5AnonymousSep 24, 2026 21:41
Haven't watched the Hantengu arc.
Did go see Infinity Castle though.
8AnonymousSep 24, 2026 21:42
Re: #6
Actually, the viewership is 60% male, 40% female.
13AnonymousSep 24, 2026 21:45
Right after the Tohoku earthquake, this otherwise unremarkable drama called "Housekeeper Mita" pulled something like a 40% rating.
Maybe during emergencies like that, people just crave some shared piece of entertainment.
86AnonymousSep 24, 2026 23:05
Re: #13
The only scene I weirdly remember is the "take it off" line.
Other than that, all I know is the theme song.
20AnonymousSep 24, 2026 21:48
Loved across every age and gender — it's basically a national phenomenon at this point.
Easiest way to put it is a baseball comparison: Demon Slayer is like the Shohei Ohtani of manga.
46AnonymousSep 24, 2026 22:09
Re: #20
That's a great comparison.
"The Shohei Ohtani of manga" really nails it.
Both Demon Slayer and Ohtani just keep putting up results nobody can find fault with.
23AnonymousSep 24, 2026 21:49
That's because the media was all in unison going, "Everyone! All entertainment is dangerous! No traveling! No drinking parties! No going outside! No events! But movies alone are safe! Totally safe! Hurry to the Demon Slayer movie! Don't get left out of the conversation!"
24AnonymousSep 24, 2026 21:49
It's more mainstream-friendly than its contemporaries Jujutsu Kaisen and Chainsaw Man.
Those two skew way too hard toward teenage boys.
27AnonymousSep 24, 2026 21:52
Re: #24
When I worked at a convenience store, everyone who came in for the Jujutsu Kaisen Ichiban Kuji (a lottery-style merch draw) was a woman, so that take doesn't hold up.
41AnonymousSep 24, 2026 22:05
The boom died out in an instant though, right?
42AnonymousSep 24, 2026 22:06
Re: #41
Nobody expected that five years later, a second movie would pull in 40 billion yen. Everyone figured the boom would be long over by then.
87AnonymousSep 24, 2026 23:06
Re: #41
Funny how last year's movie made 40 billion yen, proving the boom was nowhere near over.

All that "the boom's over" talk was basically a scam.
50AnonymousSep 24, 2026 22:11
From an anime otaku's perspective, it was wall-to-wall generic characters and settings with zero freshness.
83AnonymousSep 24, 2026 23:04
Re: #50
There were tons of people bashing it with takes like this, and there still are.
What exactly makes being an anime otaku so superior anyway?
52AnonymousSep 24, 2026 22:17
My take is that with COVID as this unknown virus where nobody knew when they might die, the public discovered a manga depicting pure, straightforward family love, and it just blew up.
60AnonymousSep 24, 2026 22:31
Re: #52
That's half right, half wrong.
First off, Demon Slayer's big hit happened in 2019, which is before the COVID era even started.
It's true that family love is one factor behind why it's loved by such a wide range of people, but it's not the only one.
The foundation the story of Demon Slayer draws on is the Bible.
That's why it easily transcends age, gender, and even national borders to become something universally loved.
65AnonymousSep 24, 2026 22:40
It's because the anime hit an SSR on the animation-quality gacha, that's why. (SSR = the rarest, top-tier pull in gacha games)
66AnonymousSep 24, 2026 22:43
Re: #65
Even after they activated a Buster Call, it still didn't take off. (Buster Call: a One Piece reference to throwing overwhelming force at something)
69AnonymousSep 24, 2026 22:46
Demon Slayer, Jujutsu Kaisen, Chainsaw Man — all garbage, right?
75AnonymousSep 24, 2026 22:54
Re: #69
Name a hit Japanese film that isn't garbage, then.
Kokuho ("National Treasure")?
82AnonymousSep 24, 2026 23:03
Well, there aren't many manga that stick to one consistent goal from the start and just go all-in on classic, straightforward storytelling.
When one does, it's honestly just nice to have.
93AnonymousSep 24, 2026 23:09
Golden Kamuy feels like it transformed into something else once it became live-action.
Really good.
95AnonymousSep 24, 2026 23:11
Re: #93
It didn't transform into anything though?
97AnonymousSep 24, 2026 23:12
Re: #93
Far from "transforming," it was already popular as both a manga and an anime.

Background and Key Points of This Discussion

Demon Slayer is a manga by Koyoharu Gotouge that has run in Weekly Shonen Jump since 2016, and its popularity took off with the ufotable-produced anime that aired in 2019. The 2020 theatrical film “Mugen Train Arc” grossed 40.4 billion yen, surpassing “Spirited Away” to become the highest-grossing film in Japanese box office history at the time. This explosive popularity actually began in late 2019, before the COVID-19 pandemic had fully taken hold, which is why posters in the thread pushed back against the simple explanation that it was “because of the pandemic.” The 2025 film “Infinity Castle Arc” also reached roughly 40 billion yen in box office revenue within a short period, suggesting this was no fleeting boom. As for the gender breakdown of viewers, figures were cited in the thread, but since they come from 5ch without a clearly stated source, they shouldn’t be treated as official statistics.

※This article is excerpted and summarized from the 5ch (Nandemo Jikkyo G) thread “Demon Slayer’s popularity boom was crazy, huh.”

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