ひと夏の出来ごころ (1984)

A female college student who grew up in a wealthy family, and a younger half-sister who doesn't even know who she is. She is a young and mature mother-in-law. A variety of dazzling, sexy, and slightly sentimental stories set under the scorching midsummer sun, centered around a mysterious and strange man who enters their lives. A unique experience unfolds in a seaside town.