Beads from a Petal , Kaben no shizuku? aka Drops on the Petal and Droplets from a Petal is a 1972 Japanese film in Nikkatsus Roman porno series, directed by Noboru Tanaka and starring Rie Nakagawa and Keiko Maki.
Beads from a Petal was actress Rie Nakagawas Nikkatsu debut. For several years she had starred in independent pink films under the name Sakayu Nakagawa. When she joined Nikkatsu, the studio insisted that she change her stage name. Nakagawa would go on to star in several films for the studio, including the Office Lady Journal series, and Tatsumi Kumashiros critically praised Lovers Are Wet.The film also marked major Roman porno director, Noboru Tanakas debut. The title was originally Im Burning Up Moeagaru watashi, which is the title Tanaka preferred. Tanakas intent in the film was to allegorically portray Japanese society in the postwar years. In a 2005 interview, he said, I thought the very atmosphere that surrounded us at the end of World War II, was similar to that enveloping a woman unable to feel anything when having sex. So I wanted to exemplify the situation we were facing after the war, by using the issue of a womans frigidity. I wanted to think about the real meaning of Japans restoration, following defeat in the war... After the war, Japan suffered from frigidity and the film described how the psychological bruises Japan suffered from would gradually be cured as time passed, through a young womans life. ........
Source: Wikipedia