In 1958 postwar Tokyo, the residents of a humble Third Street neighbourhood struggle, dream, and grow together as rapid modernisation transforms their lives beneath the shadow of the newly rising Tokyo Tower.

The elderly Shukishi and his wife, Tomi, take the long journey from their small seaside village to visit their adult children in Tokyo. Their elder son, Koichi, a doctor, and their daughter, Shige, a hairdresser, don't have much time to spend with their aged parents, and so it falls to Noriko, the widow of their younger son who was kil...

A year has passed in postwar Tokyo, and struggling writer Chagawa enters the Akutagawa Prize competition in hopes of securing a better future for the boy in his care, while the Suzuki family unexpectedly take in a new relative who looks down on their humble way of life.

As the Tokyo Olympics usher in a wave of rapid modernisation, the residents of Third Street face new beginnings as Mutsuko becomes involved with a seemingly perfect young doctor who may not be all he appears, while Chagawa struggles with his stalled writing career and what it truly means to be a father to the boy he has raised as his own.

Near the end of Japanese civil war, several disgraced ronin living in Edo's red light district attempt to regain their honor by defending a brothel from a hostile militia bent on wiping out local prostitutes.