[1/2]FILE PHOTO - A student stops to bow to a portrait of Japanese former Emperor Hirohito and Empress Kojun at Tsukamoto kindergarten in Osaka, Japan, November 30, 2016. REUTERS/Ha Kwiyeon/File Photo Acquire Licensing Rights TOKYO (Reuters) - Japan's largest opposition Democratic Party has demanded that the head of a school operator with ties to Prime Minister Shinzo Abe's wife, Akie, appear befo