Maruhi sennyû: Gyaku soap tengoku

Directed by Sachi Hamano

Written by Kuninori Yamazaki

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...

Cast

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Koyuki Fuji

Kaede Nishihara

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Jun Yahagi

Maki Hidejima

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Kaori Kuwabara

Hiroko Machino

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Kanichi Hiraga

Eijiro Kawai

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Masahiro Yoshida

Wataru Saito

Ryou Kurihara

Tetsuji Kajiki