Luther Kyushu Junior and Senior High School has an outpost in Aso, and our friend, a delightful teacher at the school, Kotegawa-sensei, has provided a photo. There are no international schools in Kumamoto, but if you have a child in search of an international education, Kyushu Gakuin (located in Oe Machi) is as close as you can get. (Both of my children attended there and benefitted greatly.) -https://kyugaku.ed.jp- - William