Ayaka Ogawa has no idea why she went to her grandmother’s house that day. Her mother was there, maybe that’s why. Usually after school she went home to the house where she lived with her parents, her older sister, and her other grandparents. This was in the small town of Hakozaki-cho, a village of 300 with bus service only three times a day. It is near Kamaiishi City, in the Iwate Prefecture, in the state of Tohoku, Japan.