A 28-year-old single woman is pressured to marry.

Shuhei Horikawa, a poor schoolteacher, struggles to raise his son Ryohei by himself, despite neither money nor prospects.

A professor, Komiya, and his bossy wife, Tokiko, are to look after Setsuko, their high-spirited niece from Osaka. Despite being a minor, Setsuko is a liberated woman who does whatever…