- HD 1080
- Runtime: 92m.
- Status: Released
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- Languages: ja
- Country: Japan
- Director: Toshiya Fujita
- Stars: Kumiko Akiyoshi, Ryūzō Hayashi, Hideko Yoshida, Yumiko Fujita, Yūko Katagiri
- Production_studio: Nikkatsu Corporation
- The Younger Sister is featured in the top rankings of 1974
- #38 in Top Romance Movies of 1974
Akio's sister, Neri has separated from her boyfriend. They lived in Kamakura. She moves in with her brother. Her ex-boyfriend's sister, Eiko comes to see Neri. She wonders if the separation occurred due to her because the three of them used to live together. Eiko's brother has disappeared in the meantime.