A university assistant professor spends his days researching. A hidden camera is installed at a reverse soap shop run by a friend of his, and he studies techniques by observing the reactions of female customers...
Koyuki Fuji
Kaede Nishihara
Jun Yahagi
Maki Hidejima
Kaori Kuwabara
Hiroko Machino
Kanichi Hiraga
Eijiro Kawai
Masahiro Yoshida
Wataru Saito
Ryou Kurihara
Tetsuji Kajiki
1966 · Movie
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