The original story follows the human drama of the Yamazaki family in Tokyo in the Year Shouwa 39 (1964) the year that the city hosted the Summer Olympics.
The Yamazaki family lives in Tokyo. Its members are Yuuzou, the father, Kanoko, the mother, Yoshi, the grandmother, Taichi, eldest son and university student, Yuuko, eldest daughter and high-school student, and Kouhei, the youngest sibling and primary school student.
Currently, the Yamazaki family is in a state of flux and discord. However, they are brought together by the activities and festivities surrounding the Tokyo Olympics.