Shingon priest and Buddhist reformer of the late Tokugawa period in Japan. His chief interests were in Buddhist education and internal moral reform. With regard to the former, he is known for his erudition in all aspects of Buddhist studies, and in particular for composing one of the first extensive textbooks on Sanskrit in Japan. As to the latter, he revived the precepts.and was especially active in promoting the traditional ten good actions (see daśa-kuśala-karmapatha), speaking and publishing widely on the subject. He established Vinaya studies within Shingon, and set up a separate sub-school devoted to the study of Buddhist precepts that he called the Shōbōritsu (Vinaya of the True Dharma), which received government recognition in 1786.