ONANIE 24 Hours (1984)

At dawn, Yuki goes out onto the balcony and indulges in masturbation in a bold pose. Michiko spreads butter on her private parts and writhes in pleasure as her dog licks them. Hiroko, a nurse, is a lecherous woman who goes out to the city after her shift to hunt for men and masturbates without hesitation if a customer at a bar requests it. Emi, a female college student, discovers the joy of masturbation with a vibrator she found in a friend's room. Mari, thinking of her lover who died in a traffic accident, gazes out at the sea and fondles her private parts with her fingers. Saeko, a wealthy madam, has a habit of getting drunk and masturbating in the toilets of bars...