The Shimoyama Incident, the Toyota Shoji Scandal… Cases ‘Only the Showa Generation Knows’ Go Viral

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The story

A thread titled “Incidents only geezers born in the Showa era know about” drew a flood of case names from the Showa and early Heisei periods that rarely come up anymore — the Shimoyama Incident, the Toyota Shoji scandal, events tied to Aum Shinrikyo, and more. Posters chimed in with things like “Even us Showa-born folks don’t know about incidents from before we were old enough to understand” and “My teenage years were already in the Heisei era, so I’m not that familiar,” highlighting just how much knowledge varies even within the so-called "Showa generation."

What people said

1AnonymousSep 12, 2026 20:14
The Shimoyama Incident
5AnonymousSep 12, 2026 20:16
The Anita Incident
29AnonymousSep 12, 2026 20:25
Re: #5
Rumor has it that old guy tearfully belted out Anita's favorite song at some kind of prison talent-show event.
51AnonymousSep 12, 2026 20:35
Re: #29
That's sad 😢 Has he been released yet?
13AnonymousSep 12, 2026 20:19
The Toyota Shoji scandal is more thrilling than any V-cinema movie (V-cinema: Japan's genre of direct-to-video films)
59AnonymousSep 12, 2026 20:40
Re: #13,27
This is the first thing that came to mind

You can watch the real footage on YouTube, plus the dramatization where Takeshi Kitano played the role.
119AnonymousSep 12, 2026 21:16
Re: #13
The stabbing of Aum's Murai happened right around my puberty years, so it gave me a weird thrill.
14AnonymousSep 12, 2026 20:20
The Akebono Incident
The Osu Incident
The Asama-Sanso Incident
The Haneda Airport Control Tower Occupation
21AnonymousSep 12, 2026 20:22
The Telephone Shocking Random-Person Gatecrash Incident (someone burst into a live segment of the talk show 'Telephone Shocking')
25AnonymousSep 12, 2026 20:24
Honestly, even the Showa-born people here don't know that much about the Showa era.
62AnonymousSep 12, 2026 20:41
Re: #25
Yeah, our teenage years were already in the Heisei era.
26AnonymousSep 12, 2026 20:24
Gotta be Aum.
I've never seen an incident get reported on that relentlessly, every single day, in my whole life.
31AnonymousSep 12, 2026 20:26
The one where the couple casually kept appearing on TV together right in the middle of their killing spree
34AnonymousSep 12, 2026 20:27
Everything related to Aum Shinrikyo is probably forgotten by now.
43AnonymousSep 12, 2026 20:31
I'm early-Heisei born, so about all I know is Kosuke Kitajima's 'I've got nothing to say' line.
48AnonymousSep 12, 2026 20:33
As far as man-made disasters go, the Hiroshima system-collapse incident was the most shocking one for me.
58AnonymousSep 12, 2026 20:39
This has gotta be the JAL Flight 123 crash.
It has nothing to do with the topic, but the impact was huge.
63AnonymousSep 12, 2026 20:41
The 'got two free Cokes out of a vending machine, lucky me, glug glug— gack, this has pesticide in it, I'm dead' incident
65AnonymousSep 12, 2026 20:42
Re: #63
That'd be Oronamine C (a Japanese energy drink).
66AnonymousSep 12, 2026 20:44
The Bikkuriman Chocolate 'toss-the-chocolate-keep-the-sticker' incident (Bikkuriman: a candy famous for its collectible stickers)
67AnonymousSep 12, 2026 20:45
Re: #65
Oh, it was Oronamine C, huh
Back when the cap was still the same as Lipovitan D's.
84AnonymousSep 12, 2026 20:52
Even a 50-year-old was 14 when Heisei started
Surely nobody here is in their 60s.
85AnonymousSep 12, 2026 20:52
Wasn't the Snow Brand expiration-date falsification scandal during Heisei?
92AnonymousSep 12, 2026 20:57
During the Asama-Sanso Incident, everyone at the office dropped their work
and was glued to the live broadcast in the archive room where the TV was.
93AnonymousSep 12, 2026 20:57
Something as major as the Shimoyama Incident, even little brats probably know about
Stuff like Kanta-kun the pelican, which got hyped up on daytime talk shows, seems more likely to be forgotten.
110AnonymousSep 12, 2026 21:08
Re: #93
Pretty sure the pelican's name was Katta-kun.
94AnonymousSep 12, 2026 20:58
What even is the Shimoyama Incident?
107AnonymousSep 12, 2026 21:07
Re: #94
Right after the war, Shimoyama, the head of the national railway, went missing at a department store,
and the next day he was found run over and dead on the Joban Line tracks.
95AnonymousSep 12, 2026 20:58
The media circus over the Kazuyoshi Miura L.A. murder suspicions
97AnonymousSep 12, 2026 20:59
The Beat Takeshi Friday Magazine Assault Incident
104AnonymousSep 12, 2026 21:03
S.O.S.!
Somebody help me!
109AnonymousSep 12, 2026 21:08
Kids today probably don't know who Tsutomu Miyazaki is
Though it's probably better that way.

Background and Key Points of This Topic

The Shimoyama Incident was an unsolved 1949 case in which the president of the Japanese National Railways was found dead under mysterious circumstances, while the Toyota Shoji scandal was a 1985 investment-fraud case in which the company’s chairman was stabbed to death in broad daylight — both dominated news coverage at the time. As commenters in the thread pointed out, awareness of these cases varies widely by birth year, even among those born in the Showa era, let alone those born in Heisei. Incidents from an era when television was the main source of information don’t surface easily in internet searches, which makes them harder to pass down across generations. That said, some of the rumor-like content and details about unsolved disappearance cases in the thread remain unconfirmed, so they should be treated as unverified information.

*This article is excerpted and summarized from the 5channel (Nandemo Jikkyo G, a live-commentary board) thread “Incidents Only Geezers Born in the Showa Era Know About.”

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