Inoue Enryō was a Japanese philosopher, Shin Buddhist priest and reformer, educator, and royalist. A key figure in the reception of Western philosophy, the emergence of modern Buddhism, and the permeation of the imperial ideology during the second half of the Meiji Era. He is the founder of Toyo University and the creator of Tetsugaku-dō Park 哲学堂公園 in Tokyo. Because he studied all kinds of mysterious phenomena and apparitions in order to debunk superstitions, he is sometimes called "Professor Specter" and the "Spook Doctor" .

Toyo University is a private university with the main Hakusan campus in Bunkyo, Tokyo, Japan. The university operates multiple satellite campuses in the Kanto region, including. Asaka, Kawagoe, Itakura, and Akabane.