Karayuki-san, the Making of a Prostitute

Karayuki-san, the Making of a Prostitute (からゆきさん) is a 1973 Japanese television documentary film by director Shōhei Imamura. It tells the story of a karayuki-san, a term for Japanese women who were sent to foreign Asian countries to serve as prostitutes.

Source: Wikipedia — Karayuki-san, the Making of a Prostitute (CC BY-SA 4.0)