Amai Muchi (甘い鞭) is a 2013 Japanese erotic drama film directed by Takashi Ishii, based on a novel of the same name by Kei Ōishi [ja][1] and starring Mitsu Dan, Yuki Mamiya and Tsuyoshi Nakano.

[2] While working as a doctor that treats infertility, Naoko is also the Celica, a masochist girl at SM clubs.

She treats patients who adore Naoko like a virgin, and men who want Celica like a true masochistic girl who arouses sadistic feelings.

Her double life began when she was 17 years old and endured a terrible incident.

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