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...

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Main Cast: Koyuki Fuji, Jun Yahagi, Kaori Kuwabara, Kan'ichi Hiraga, Masahiro Yoshida, Ryou Kurihara

Director: Sachi Hamano

Writer: Kuninori Yamazaki

Editor: Shōji Sakai

Cinematographers: Naka Ueda, Kanemi Kawanaka, Joji Tanaka

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