Keimei Gakuen was established in April, 1940 in the home of Takasumi Mitsui, at Daimachi, Akasaka, Tokyo. Its objectives were to educate returning international students in those aspects of Japanese education which they lacked in their studies abroad, to encourage a broad, international outlook, and to emphasize the study of English and other foreign languages. Later the school was expanded to include Japanese students who had not lived overseas.