水溜り (1961)
The stage is Tokyo, a factory town in a downtown area. The young people who work at the bottom of society and one of them, the older sister of the people who work at the bottom of society, no matter how much they are trampled, are written to live a strong life. It is a film adaptation of two short stories of Fumio Niwa's "Water Pool" and "Insects in the Schoolyard."