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Japan’s 3 Surviving Ninja Manuals: What Real Shinobi Actually Studied
Summary by The Tokyo Editorial Desk · Byline on the source page: Cezary Jan Strusiewicz , as published by Tokyo Weekender
· September 17, 2026
· 1 min read
Back in mid-June, 131 people took the Koka-ryu Ninja Certification Exam in Koka, Shiga Prefecture, one of the centers of Japan’s ninja culture. The test, devised as a way to promote the local heritage of Japan’s famous spy-assassins, awarded extra points for costumes and shuriken-throwing skills,...
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Summary created by The Tokyo Editorial Desk — automated, rule-governed Byline on source page Cezary Jan Strusiewicz, as published by Tokyo Weekender Original story Read at the source Source published Sep 17, 2026 Indexed here Sep 17, 2026 AI assistance Automated summary drawn from the source’s own published text Prepublication human review No — editorial rules, flagged-item review, and published samples
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What is this story about? Back in mid-June, 131 people took the Koka-ryu Ninja Certification Exam in Koka, Shiga Prefecture, one of the centers of Japan’s ninja culture. The test, devised as a way to promote the local heritage of Japan’s famous spy-assassins, awarded extra points for costumes and shuriken-throwing skills,...
When was this published? This article was first published on September 17, 2026 by Tokyo Weekender and curated for The Tokyo readers.
Who reported this story? This story was reported by Cezary Jan Strusiewicz at Tokyo Weekender. To learn more about how The Tokyo selects and reviews stories, see our editorial standards .
Where can I find related coverage? See more News coverage from The Tokyo, or browse our daily briefing and topic hubs .
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