On a sweltering summer day, Makiko travels from Osaka to Tokyo, where her sister Natsu lives. She is in the company of her daughter, Midoriko, who has lately grown silent, finding herself unable to voice the vague yet overwhelming pressures associated with adolescence. The story of these three women reunited in a working-class neighborhood of Tokyo is told through the gaze of Natsu—thirty years old, an aspiring writer, haunted by hardships endured in her youth. Over the course of their few days together in the capital, Midoriko’s silence will prove a catalyst for each woman to confront her fears and family secrets.

On yet another blistering summer’s day eight years later, Natsu, during a journey back to her native city, struggles with her own indeterminate identity as she confronts anxieties about growing old alone and childless.