all of them died except for one, 9-year-old sachiko kurikawa.achiko was carrying her little sister on her back when she was knocked off her feet by the blast. she was found half-buried near the entrance. in july, the story of sachiko's survival was unveiled for the first time in the form of traditional picture boards. they are the work of shizuko mitamura. mitamura also lived through the atomic bomb attack. for over 30 years now, she has worked as a volunteer guide, explaining to the school children who visit nagasaki about what happened on that day. a sign at the peace park says that everyone in the area died, apart from one 9-year-old girl. mitamura had long wondered who that one person was who managed to survive so miraculously. >> translator: it's so close to the ground zero, it's amazing that she survived. eventually i decided i had to find out more about this story for myself. >> reporter: through another survivor, mitamura learned that sachiko, the girl who survived, was still alive. mitamura decided to contact her. up to now, sachiko had