I now complete the series with the ,,Nihon-shinshinto-shi", the history of the shinshinto era of Japanese swords, starting from Suishinshi Masahide ́s initiation of a new trend around An ́ei (1772-1781) to the ban on swords issued by the Meiji government in 1876. As with the ,,Nihon-koto-shi" and the ,,Nihon-shinto-shi", the reader should be able to grasp a coherent picture of the backgrounds and scholastic activities around the Japanese sword at the end of the feudal era. Finally, the time scale must not be overlooked: The ,,Nihon-koto-shi" had to deal with roughly 800 years, from the Nara to the end of the Muromachi period, and the ,,Nihon-shinto-shi" comprised ,,just" about 200 years, whereas the shinshinto era lasted only about a century.