In 1889, in cooperation with Yujiro MOTORA (former professor at the University of Tokyo) and Naibu KANDA (former professor at the Tokyo College of Commerce [of the old system school]), he established Seisoku Yobiko (a prep school) in Shiba.
1889年（明治22年）、元良勇次郎（元東大教授）、神田乃武（元東京商科大学(旧制)教授）と共に、芝に正則予備校を開設。