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Books about Shinbei:
Shinbei hanbei kenbeiron (Japanese Edition) by Yoshimi Ishikawa (1992)
Shinbei to hanbei: sengo Nihon no seijiteki muishiki by Yoshimi Shunya (1000)
Wiki information Shinbei:
Tanaka Shinbei was one of the four members of the hitokiri, elite samurai, active in Japan during the late Tokugawa shogunate in the 1860s. The hitokiri including Shinbei were working under the command of Takechi Hanpeita, the leader of the Loyalists...
Shinbei Fukutomi is a fictional character from the film Ninja Kids!!!