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The story
Iga City (Mie Prefecture) and Koga City (Shiga Prefecture) will hold their first-ever “Shinobi Yo-uchi 2026: Iga vs. Koga — The First Reiwa Rebellion” on October 3 at Yono Park, a sponge-sword night-raid experience event. Modeled on the 1581 Tensho Iga War, it’s organized by the “Shinobi no Sato Iga-Koga Ninja Council,” a group formed by the tourism associations of both cities, and they’re recruiting people willing to pay an entry fee just to play a ninja for the day. On 5ch, the thread sprawled from arguments over the correct reading of “Koga” and whether Koga even had ninja clans historically, to the origins of the popular ninja image and generation-by-generation debates over ninja anime.
The Koga clan marches out on Oda Nobunaga’s orders, the Iga clan rises to meet them. Modeled on the 1581 (Tensho 9) Tensho Iga War, this event lets participants dress up as ninja and experience a night raid using sponge swords
“Shinobi Yo-uchi (Night Raid) 2026: Iga vs. Koga — The First Reiwa Rebellion” will be held for the first time on October 3 from 3:30 to 9:00 PM in Tsuge-cho, Iga City, Mie Prefecture, on the border with Koga City, Shiga Prefecture,
at Yono Park. The organizer — the “Shinobi no Sato Iga-Koga Ninja Council,” made up of Iga City, Koga City, and both cities’ tourism associations — is looking for people willing to pay an entry fee
Source: shinobi-youchi.xn--com)-863c8n.xn--n8j3b0csb8g2etwja9002fnxcoy5byz7aduvtu8at53bcr3b. / Original article here
What people said
That reminds me — there was a pretty girl in my high school named Nakashima (中島) who once got called "Nakajima" by a teacher and snapped, "It's NA-KA-SHI-MA!💢" so hard the whole classroom froze. The memory just came back to me, along with how hard I decided to steer clear of her after that.
Their corpses rot in the fields
Their souls soak into the earth
Their bond severed by the blade
Destroy the heavenly demons
Can we get some regular entertainment threads going too?
The entertainment/sports board has been seriously short on news lately.
their ancestors must be cursing their own descendants right about now.
Isn't it just an exclave of Iga, or pure fantasy?
Ton-toko-ton
Those bumbling Iga fools
Barbecued with a fire jutsu
Caltrops too.
The whole ninja scene is out of control.
Collapsed right here in our town
There lay Hattori-kun…
(a riff on the Ninja Hattori-kun theme song)
You mean Tenzen.
Tengen is from Demon Slayer.
the Hattori, Momochi, and Fujibayashi clans
I had upperclassmen back in school named Hattori and Fujibayashi.
Come to think of it, Tomokazu Sugita is in Basilisk too.
Forget participating, I just want to watch.
Both sides also have spies (traitors) planted among them, and exposing one scores points too. Whichever side has the higher total wins.
The supreme commander of each side is the mayor.
The losing mayor has to produce and release a PR video promoting the winning city.
They even planted spies — this is pretty hardcore.
His grandfather was a fisherman in Wakayama.
Has to be descended from the Saiga clan (famous mercenary gunner clan).
More than a Showa-era novelist,
it actually traces back to Edo-period war-tale kōdan storytelling and picture books.
Your answer will reveal your generation.
Nintama Rantarō
Ninin ga Shinobuden
Ninja Hattori-kun
Background and Points of Debate
The “Shinobi Yo-uchi” event is rooted in a real historical event: the 1581 Tensho Iga War, in which Oda Nobunaga attacked Iga. Neighboring Koga’s actual role at the time remains disputed, and surviving records are too thin to confirm what its ninja groups were really like. The thread split mainly over two points. One was the reading of “Koga” (甲賀) — locally, “Kōka” is considered the original reading, though the voiced “Kōga” has become the standard nationwide. The other was the origin of the classic ninja image — the black outfit, the shuriken — with posters split between a “Showa-era fiction” theory and an “Edo-period kōdan storytelling and picture-book” theory. In truth, the now-iconic ninja costume was largely shaped by modern novels and period dramas, though prototypes do appear in Edo-period kōdan as well, so neither side is simply wrong. One thing the article doesn’t mention but is worth noting: the event itself isn’t a historical reenactment — it’s an entertainment project aimed at tourism promotion.
*This article is excerpted and summarized from the 5ch (Entertainment/Sports News+) thread “[Ninja] Night Raid with Sponge Swords, Iga vs. Koga: “Reiwa Showdown” — Seeking “Ninja” Volunteers.”
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