It was the spring of 1956, roughly 10 years after the end of the Pacific War. A new teacher named Sakamoto Rieko is assigned to an elementary school in Kiba, downtown Tokyo. At the same time, Miyanaga Shizu, a transfer student from Kobe, joins the class #4 of the 6th grade. Shizu is a bright, pretty girl who dreams to become a singer. Blessed with both athletic and academic abilities, Shizu quickly becomes the center of everyone's attention in the class. Akira, the son of a joiner and also the class president, starts to develop a special feeling for Shizu...