Takushoku University is a private university in Tokyo, Japan. It was founded in 1900 by Duke Taro Katsura (1848–1913). It has two campuses: the main campus in the Bunkyō Ward and a satellite campus in Hachiōji. Takushoku University has five faculties: Commerce, Political Science and Economics, Foreign Languages, International Studies, and Engineering.

Nisshō Inoue was a radical Buddhist preacher of Nichirenism who founded the interwar Japanese far-right militant organization Ketsumeidan . Contrary to popular belief, he was never an ordained Nichiren priest, but was rather a self-styled preacher whose extremist tenets were widely denounced by Japan's mainline Nichiren Buddhist establishment of the time.