半熟処女

A literal translation of the title:

Immature Young Girl (1986)

Director: Hitoshi Nimura / 二村仁

Actresses:

Shiori Sawaki / 沢木しおり

Mayumi Sanada / 真田まゆみ   Kana Inoue / 井上華菜 / 井上可奈

Additional movie info: Nikkatsu (in Japanese)