{"rewrite":{"id":"r_a5455491c409f5350d867837","clusterId":"c_043739b5f8541682c3e89fda","slug":"gakken-plus-kindle-99-yen-sale-offers-11-manga-science-volumes","model":"deepseek-v4-flash","headline":"Gakken Plus Kindle 99 Yen Sale Offers 11 Manga Science Volumes","summary":"Gakken Plus is running a 99 yen campaign on Amazon Kindle for a selection of its books, with the promotion active until September 3. Among the discounted titles is the educational manga series Manga Science, where 11 of its 14 volumes are available at the reduced price. Volumes 5, 8, and 11 are excluded from the offer. The sale spans a broad catalog beyond Manga Science, including the Girls \u0026 Panzer Storyboard Collection, Venus Wars, and Kilarity. Gakken's historical manga line is also included, with titles such as World History, History of Japan, Three Kingdoms, NEW Biographies of Japan, and NEW World Biographies, though the Japanese Historical Figures volume covering Takasugi Shinsaku is not part of the discount. The campaign extends to nonfiction and practical guides as well, including Japan's Poisonous Plants, Moving Creature Picture Book, Fun Muscle Training: Muscles Rejoice! Shortest Path to a Cool Body, and Table Manners and Tips: A Picture Book of Daily Life. The full list of eligible titles is presented in the announcement, and the campaign is limited to the Kindle storefront.","whyItMatters":"The 99 yen price point makes a deep back catalog of Gakken educational manga accessible for bulk purchase, a move that could push the Manga Science series toward new readers ahead of its September 3 deadline.","webCardHtml":"\u003cp\u003eThe Gakken Plus Kindle 99-Yen Campaign groups educational manga with hobby and lifestyle titles under a single flat price. Beyond the 11 Manga Science volumes, the promotion includes the Girls \u0026amp; Panzer Storyboard Collection and Venus Wars, which sit alongside historical series like World History and Three Kingdoms. Nonfiction entries cover topics from poisonous plants to muscle training, and the list also features An Unexpected Ending 5 Minutes Later and Slacker Time Management: 23 Unbeatable Tactics to Survive a Managed Society. The announcement names each title without ranking them, and it notes that the Japanese Historical Figures manga excludes the Takasugi Shinsaku volume, mirroring the Manga Science exclusions. Readers who want the full catalog can review the complete list in the source announcement, which also carries an affiliate disclosure.\u003c/p\u003e","blueskyPost":"Gakken Plus excludes volumes 5, 8, and 11 from the 99 yen Kindle discount, leaving readers to buy three volumes at full price if they want the complete Manga Science set.","twitterPost":"Gakken Plus's 99 yen sale on Manga Science skips volumes 5, 8, and 11, so a full set still costs more than the headline price.","threadsPost":"Gakken Plus's Kindle sale prices 11 of Manga Science's 14 volumes at 99 yen, but volumes 5, 8, and 11 stay at full price. Completing the set requires buying those three separately, which undercuts the sale's appeal for collectors.","newsletterBlurb":"Gakken Plus dropped 99 yen prices on 11 Manga Science volumes and a wide supporting catalog on Kindle, running until September 3. The deal spans historical manga, storyboard collections, and nonfiction guides.","attributionJson":"[{\"source\":\"Denfaminicogamer\",\"url\":\"https://news.denfaminicogamer.jp/news/2608273e\",\"title\":\"【99 yen】Sale underway where 11 of the 14 Kindle volumes of 'Manga Science' can be purchased for 99 yen each. Gakken Plus publications discounted until September 3.\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":5680,"outputTokens":897,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1787898111,"createdAt":"2026-08-28T06:03:20.000Z","publishedAt":"2026-08-28T06:06:44.000Z","updatedAt":"2026-08-28T06:03:20.000Z"},"cluster":{"id":"c_043739b5f8541682c3e89fda","canonicalTitle":"【99円】『まんがサイエンス』Kindle版全14巻のうち11巻分が「99円」で購入できるセールが開催中。学研プラス出版の書籍が9月3日までお得に","representativeArticleId":"a_b07de221fe98de64119c951d","sourceCount":1,"writtenSourceCount":1,"writeAttempts":2,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[\"Manga Science\",\"Nihon no Rekishi\",\"Sekai no Rekishi\"],\"work_titles\":[\"Girls und Panzer Picture Story Collection\",\"Nihon no Yudoku Shokubutsu\",\"Nakeru Ikimono Zukan\"],\"studios\":[\"Gakken Plus\"],\"people\":[],\"type\":\"news\",\"domain\":\"manga\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-08-27T04:57:34.000Z","lastSeenAt":"2026-08-28T05:16:19.000Z","updatedAt":"2026-08-28T06:06:45.000Z"},"attribution":[{"source":"Denfaminicogamer","url":"https://news.denfaminicogamer.jp/news/2608282i","title":"『ファイアパンチ』『ダイの大冒険』Kindleにてポイント“50％還元”セール開催中！『ロックマンX』『武装錬金』など熱くなれるものから、『左門くんはサモナー』『デッドプール：SAMURAI』などコメディまで「少年マンガ」特集"}],"entities":{"anime_titles":[],"manga_titles":["Manga Science","Nihon no Rekishi","Sekai no Rekishi"],"work_titles":["Girls und Panzer Picture Story Collection","Nihon no Yudoku Shokubutsu","Nakeru Ikimono Zukan"],"studios":["Gakken Plus"],"people":[],"type":"news","domain":"manga","is_roundup":false},"keyFacts":["The Gakken Plus Kindle 99-Yen Campaign runs until September 3 on Amazon Kindle.","11 of the 14 Manga Science volumes are priced at 99 yen each, excluding volumes 5, 8, and 11.","The sale includes the Girls \u0026 Panzer Storyboard Collection, Venus Wars, and Kilarity.","Gakken historical manga in the sale includes World History, History of Japan, Three Kingdoms, NEW Biographies of Japan, and NEW World Biographies.","The Japanese Historical Figures manga is included except for the volume covering Takasugi Shinsaku."]}