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Guin Saga (グイン・サーガ, Guin Sāga?) is the title of a best-selling heroic fantasy novel series by the Japanese author Kaoru Kurimoto, in continuous publication since 1979. A record 100 volumes were originally planned,[1] but as of the author's death in May 2009 the total stands at 126 volumes, with 21 side-story novels.[2] She was working on the 130th volume of Guin Saga up until 23 May 2009, after which point she became too ill to write.[3] After the 100th book in the series was published in 2005, an event to celebrate this was held in Tokyo, with 600 attending.[4] Guin Saga is the longest continuing single-writer's work in the world with total circulation exceeding 28 million worldwide.