The anime is set in postwar Japan between 1955 and 1964 and focuses on stories illustrating the humour and pathos of ordinary life in Japan of that era, mainly about the residents of the fictional Tokyo neighbourhood called San Choume (Third District).

The anime is set in postwar Japan between 1955 and 1964 and focuses on stories illustrating the humour and pathos of ordinary life in Japan of that era, mainly about the residents of the fictional Tokyo neighbourhood called San Choume (Third District).