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Kaitarō Hasegawa was born on 17 January 1900 in Sado, Prefekture Niigata, Japan. Kaitarō was a writer, known for Kuchibue o fuku bushi (1932), Chijô no seiza - Zempen: Chijô-hen (1934) and The Lefty Swordsman (1969). Kaitarō died on 29 June 1935 in Yukinoshita, Kamakura, Japan.