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 

Additional movie info: Nikkatsu / TMDB