The ‘3 Absolute Rules’ Osamu Tezuka Imposed on Manga Artists

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The story

A thread on 5ch’s “Nandemo Jikkyo G” board sprang up to swap trivia about manga legend Osamu Tezuka. Tezuka reportedly held himself to three absolute rules: never mock war victims, specific professions, or specific ethnic groups. Building on that, posters piled on tidbits — how the departure jingle at Takadanobaba Station comes from “Astro Boy,” the backstory behind Black Jack’s unlicensed medical practice, and Tezuka’s friendship with Takashi Yanase. Opinions split along generational lines too: some said “Black Jack is about the only one still fun to read today,” while others countered that his works have long been staples of school library shelves.

What people said

1AnonymousSep 20, 2026 14:38
He's famous as the "God of Manga" — but there's one genre he never once touched: sports manga (the grit-and-guts "supokon" style).
5AnonymousSep 20, 2026 14:39
The 3 rules Osamu Tezuka set that manga artists must never break
· Never draw content that mocks victims of war or natural disasters.
· Manga that discriminates against a specific profession is also an absolute no.
· Manga that ridicules a specific ethnic group is also an absolute no.

Simply put: "Always respect basic human rights, no exceptions."
33AnonymousSep 20, 2026 14:50
Re: #5
I mean, he still gave Black native characters weird broken speech patterns in his work, so it's not like Tezuka was some progressive humanist ahead of his time.
52AnonymousSep 20, 2026 15:00
Re: #5

Basic principles for manga artists

Source: "How to Draw Manga" by Osamu Tezuka.
6AnonymousSep 20, 2026 14:39
Nobody in here is even saying Tezuka was a saint, though?
10AnonymousSep 20, 2026 14:40
Re: #6
Well, there aren't many manga artists who were also great people character-wise…
Feels like most of them had strong quirks (eccentric personalities).

Takashi Yanase might be the one who was actually a saint, though.
9AnonymousSep 20, 2026 14:40
The creator's famous, but I never feel like actually reading his stuff.
11AnonymousSep 20, 2026 14:41
Re: #9
Same, I never found anything besides Black Jack all that fun either…

Honestly I think Akira Toriyama (Dragon Ball) and Takashi Yanase (Anpanman) are way bigger household names these days.
12AnonymousSep 20, 2026 14:42
I'm from Kansai, but I love Aizuwakamatsu City in Fukushima Prefecture.
By the way, he (Tezuka) was also a regular at Higashiyama Onsen there.


JR Aizuwakamatsu Station


Aizu Higashiyama Onsen
13AnonymousSep 20, 2026 14:42


Fun fact: the departure jingle at JR Takadanobaba Station (Yamanote Line) in Shinjuku, Tokyo is the theme from "Astro Boy."
That's because Tezuka's own studio, Tezuka Productions, was located in Takadanobaba.
14AnonymousSep 20, 2026 14:42

· Black Jack (Kuroo Hazama)
A brilliant surgeon, but technically an outlaw since he holds no medical license.
That said, he did receive a full medical education, graduating from the medical school of a private university out in the countryside.
16AnonymousSep 20, 2026 14:42
Re: #14

By the way, the university Black Jack attended is modeled on Kawasaki Medical School, a private medical university in Okayama Prefecture.
18AnonymousSep 20, 2026 14:44

Black Jack (Kuroo Hazama) is known as a genius surgeon, but psychiatry is actually his one weak spot.
You could call it his only weakness.

And it's not just surgery, either — he's also deeply knowledgeable in internal medicine, ophthalmology, pharmacology, and veterinary medicine.
19AnonymousSep 20, 2026 14:44

Fun fact: he was actually good friends with Takashi Yanase (creator of Anpanman).

Yanase was the older of the two (born first),
and yet Tezuka was the one who died first…😢
20AnonymousSep 20, 2026 14:45
Re: #19

By the way, Yanase is from Kochi Prefecture! (Same as Ryoma Sakamoto, former PM Osachi Hamaguchi, and Ryoko Hirosue.)
Besides Anpanman, he also created a boy cat character called "Nyander Kamen."
22AnonymousSep 20, 2026 14:45
Re: #19

When he was young, Yanase actually worked at the Mitsukoshi department store in Nihonbashi.
He's also the one who designed the logo on Mitsukoshi's wrapping paper.
61AnonymousSep 20, 2026 15:06
Re: #19

Takashi Yanase was actually an elite graduate of Chiba University's Faculty of Engineering.
He graduated from Tokyo Kogei School, the predecessor of Chiba University's engineering faculty.

*Pictured: an Anpanman-related book sold at Chiba University's co-op store.
23AnonymousSep 20, 2026 14:46
AI art of Mabel and friends in Tezuka's style



Rabbit girl "Mabel"


Rabbit girl "Pacifica"


Rabbit girl "Wendy"
24AnonymousSep 20, 2026 14:46
Re: #23
Hey, Philosophy News (a popular 5ch roundup/aggregator blog)!
Put this thread together in a summary post!
27AnonymousSep 20, 2026 14:48

Boccherini

An Italian mafia boss who appears in "Black Jack."
After his grandson dies of severe heart disease, he shoots the son of the Japan Medical Association's chairman in revenge.
28AnonymousSep 20, 2026 14:48
Re: #27
By the way, he'd tried to get Black Jack to operate on his grandson, but Black Jack had been arrested through the Medical Association chairman's influence, so the surgery never happened.
That's why Boccherini's grandson ended up dying.
29AnonymousSep 20, 2026 14:48
Probably lost on middle-aged guys who've spent their whole lives reading Shonen Jump.
32AnonymousSep 20, 2026 14:49
Re: #29
Yeah, I think it's genuinely hard to appreciate what's great about Tezuka when you're comparing him to stuff like Dragon Ball…
I couldn't get into anything besides Black Jack either…
30AnonymousSep 20, 2026 14:48
Re: #28

Afterward, the Medical Association chairman had a medical license made for Black Jack so he could formally ask him to operate on his son — but Black Jack refused anyway.
That made the chairman break down crying.
31AnonymousSep 20, 2026 14:49
Feels like "Adolf" (Adolf ni Tsugu) actually worked some gag elements into its take on the war, though?
57AnonymousSep 20, 2026 15:02
Re: #31

Tezuka was heavily influenced by Disney and American cartoons to begin with, so he was skilled at mixing gags (satire) into even the most tragic stories.

Even Black Jack was packed with gags, played as "just a manga, not real medicine."

That said, he still never once made light of war victims — no exceptions.
(He didn't just hold himself to that line; he strictly enforced it on other manga artists too.)
44AnonymousSep 20, 2026 14:55
Re: #38
I don't think Tezuka's making the reading list of a middle schooler who just started getting into manga.

That's more of an old-man-who-never-stopped-reading-manga thing.
45AnonymousSep 20, 2026 14:56
Re: #44
My elementary school library had Tezuka on the shelves, and it was popular.
46AnonymousSep 20, 2026 14:57
Re: #44
Nah, you hear a lot that Tezuka's and Fujiko Fujio's works are basically the only manga you're allowed to check out of a school library, so plenty of kids do end up reading the classics.
60AnonymousSep 20, 2026 15:04
He pioneered a lot of techniques that became so standard they now just feel ordinary — so is a lot of his stuff only average when you read it today? But I think it's still impressive that it holds up well enough that you can read straight through without dropping off. I recently read "Buddha." Since I watched the movie, I want to read "Princess Knight" next too.
64AnonymousSep 20, 2026 15:09
Re: #60
He just loved working no matter what, so a lot of his stuff got dismissed as flops back in the day — which means some of it might actually land better if you read it now.
Well, nobody's ever going to top his sheer output anyway.
Apparently at his peak he was running 11 serializations at once.
107AnonymousSep 20, 2026 15:34
Re: #60
Whether Tezuka's work is fun depends on the reader (a lot of it's pretty tough going for casual readers, at least), but even a novice can tell he's not a bad artist.

If I had to pick one Tezuka work for beginners, I'd say "Marvelous Melmo."
67AnonymousSep 20, 2026 15:10
Tezuka just doesn't seem like the sports type, honestly.
78AnonymousSep 20, 2026 15:16
Re: #67
Well, he was famously bad at sports himself, and he hated the strict senior-junior hierarchy of athletic-club culture too.
79AnonymousSep 20, 2026 15:17
Re: #67
It's not just sports — his action scenes in general were consistently weak, or more like understated, and the battle-manga grammar that's still mainstream today traces back to gekiga, not Tezuka.

I think that's where Disney's influence on him really shows.
Even early Disney had amazing animation, but the action scenes always felt like they lacked real punch too.
80AnonymousSep 20, 2026 15:17

He was basically what we'd call a "kemono" (furry) enthusiast today.
"W3" features a rabbit girl character named Captain Bokko.
87AnonymousSep 20, 2026 15:21
102AnonymousSep 20, 2026 15:31
Re: #87
Shigeru Mizuki and Takashi Yanase took care of their health and lived long lives.
Tezuka and Shotaro Ishinomori, on the other hand, neglected their health and died young.

Background and Key Points of This Discussion

Osamu Tezuka died in 1989 at age 60. The three principles discussed in the thread — never mocking war victims, specific professions, or specific ethnic groups — are known from sources such as his book “How to Draw Manga.” That said, as post #33 points out regarding character depictions in his early work, it’s worth noting that Tezuka’s works have repeatedly drawn industry discussion over revisions made to their depictions in later reprints — there was a gap between the stated principles and how individual works actually portrayed things. Opinions in the thread split over whether his work is “still fun to read today,” with some saying nothing but Black Jack holds up and others countering that his books have long endured as staples on school library shelves for children. The thread ranged well beyond a simple highlight reel of his famous works too, touching on trivia like the departure jingle at Takadanobaba Station, his friendship with Takashi Yanase, and the differing attitudes toward health behind the early deaths of Tezuka and Shotaro Ishinomori.

*This article is excerpted and summarized from the 5ch (Nandemo Jikkyo G) thread “[Manga Artist] What I Know About Osamu Tezuka (Astro Boy, Black Jack, Phoenix, etc.).”

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