Futatsu no Kurumi

Ayaka is a typical twelve-year-old girl who takes her comfortable city life for granted, brushing off her grandmother's tales of World War II. On a day like any other, the girl begrudgingly takes her dog Ryan for a walk when she's forced to flee into a telephone booth to take refuge from a sudden storm – and that's when it happens. Lightning strikes, teleporting her and Ryan sixty years into the past, several days before Tokyo was bombed and 100,000 people lost their lives. Stranded from everyone she knows and the comforts of home, Ayaka must struggle to survive amidst the hardships of war, all the while trying to find a way home.