{"rewrite":{"id":"r_eb423fa00d747c847782ce24","clusterId":"c_beee1d12d1caeb21bd02ecda","slug":"ninja-researcher-yuji-yamada-supervises-bilingual-book-ninja","model":"deepseek-v4-1-flash","headline":"Ninja Researcher Yuji Yamada Supervises Bilingual Book 'NINJA'","summary":"Natsume-sha will publish 'NINJA,' a Japanese-English bilingual book on ninja history and culture, on Thursday, October 15. Yuji Yamada, a Mie University professor and president of the International Ninja Research Association, supervises. The A6 format book runs 160 pages in all color at 1,650 yen. It covers ninja attire, tools and weapons, ninjutsu, ninja mansions, philosophy, and daily life across six parts, with illustrations.","whyItMatters":"The book puts the historical record of ninja and the fiction-derived image built by works like 'NARUTO' between the same covers, addressed to the overseas readers who met ninja through fiction first.","webCardHtml":"\u003cp\u003eThe book is organized into six parts: ninja attire, tools and weapons, ninjutsu using the body and tools, ninjutsu using the mind and mysterious powers, ninja mansions, and the daily life of ninja. Illustrations run alongside the text throughout.\u003c/p\u003e\u003cp\u003eYamada specializes in the history of medieval Japanese religion. Mie University began its ninja and ninjutsu research in 2012 with cooperation from Iga City and others, according to the article, because academic work on the subject was scarce at the time even as ninja were widely known overseas. The university now runs the International Ninja Research Center in Iga.\u003c/p\u003e","blueskyPost":"Yuji Yamada's bilingual book treats 'NINJA' as an exported image and ninja as a historical practice. The gap between those two is the book's subject, not a translation problem.","twitterPost":"Yuji Yamada's 'NINJA' book sets the exported image against the historical ninja. The difference is the subject, not a wording issue.","threadsPost":"Yuji Yamada's 'NINJA' is bilingual because the word itself is the problem: what the world calls Ninja and what Japanese records call ninja are not the same thing. Natsume Publishing's book treats that gap as the subject, not a translation snag.","newsletterBlurb":"Natsume-sha publishes 'NINJA' on October 15, supervised by Yuji Yamada, a Mie University professor and president of the International Ninja Research Association. The 160-page, all-color book is Japanese-English bilingual and covers ninja attire, tools, ninjutsu, mansions, and daily life. It sets the fiction-derived image of ninja, including the anime 'NARUTO,' beside what historical source research shows.","attributionJson":"[{\"source\":\"KAI-YOU\",\"url\":\"https://kai-you.net/article/96770\",\"title\":\"Book by leading ninja researcher published: Explains the difference between the world-beloved \\\"NINJA\\\" and ninja in Japanese and English\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4531,"outputTokens":659,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1791366744,"createdAt":"2026-10-07T09:48:12.000Z","publishedAt":"2026-10-07T09:51:11.000Z","updatedAt":"2026-10-07T09:51:11.000Z"},"cluster":{"id":"c_beee1d12d1caeb21bd02ecda","canonicalTitle":"忍者研究の第一人者による書籍が刊行　世界が愛する「NINJA」と忍者の違いを日英で解説","representativeArticleId":"a_9b281a68b5efd2ff253b4c8b","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"NINJA\"],\"studios\":[\"Natsume Publishing\"],\"people\":[\"Yuji Yamada\"],\"type\":\"release\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-10-07T08:44:00.000Z","lastSeenAt":"2026-10-07T08:44:00.000Z","updatedAt":"2026-10-07T09:51:07.000Z"},"attribution":[{"source":"KAI-YOU","url":"https://kai-you.net/article/96770","title":"忍者研究の第一人者による書籍が刊行　世界が愛する「NINJA」と忍者の違いを日英で解説"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["NINJA"],"studios":["Natsume Publishing"],"people":["Yuji Yamada"],"type":"release","domain":"other","is_roundup":false},"keyFacts":null}