AV Idol. The line between "adult" and family entertainment in Japan is not as clear-cut as it is in some other countries. A celebrity may appear in AVs after already having established a career in mainstream television. Also, it is not rare for a popular AV actress to go on to mainstream celebrity. Fornander reports that "a background in porn is not necessarily a skeleton in the cupboard anymore. In some cases, it’s a career move."
The AV, or "Adult Video" market is a major industry in Japan, reportedly worth about ¥400 billion per year. In 1992, it was reported that over 11 AVs were being made every day by over 70 production companies in Tokyo alone. The AV market was estimated to make up about 30 percent of Japan's video rentals. It was estimated in 1994 that, between legal and illegal videos, around 14,000 AVs a year were being made in the country, in contrast to about 2,500 in the United States.
The AV actress
AV performers were often struggling actresses who could not find work in the theatrical Roman Porno films and girls from the soaplands. AV star Kaoru Kuroki has been credited with raising the status of AV idols in the public's eye. According to Rosemary Iwamura, "she didn't seem to be making videos because of a lack of options but rather as an informed choice."
AV actresses are usually recruited by scouts in Tokyo neighborhoods such as Roppongi, Shinjuku and Shibuya. These scouts are affiliated with talent agencies who then hire the actresses to the AV production companies. Some women wishing to appear in AVs apply to the production companies, but they are usually referred to the talent agencies. The production companies are typically charged ¥1.5 million or more for an actress to appear in a video. AV actresses make between ¥200,000 and 4 million yen per video. Steve Scott, president of Third World Media, an importer of Japanese adult movies to the United States, estimated a top-tier AV star could make up to nearly ¥36 million for an eight picture deal.
AV fans are invited to follow the progress of a prominent AV actress' career over several video appearances. In her AV debut video, the actress is introduced as a "new face," and her inexperience is played up in interviews preceding the modeling and sex scenes. Following this debut video, the AV audience follows the actress' journey through sexual awakening, and her eventual specialization, after about five AV appearances, in a specific genre such as lesbianism or SM. Once the actress has established herself as a mature AV star, she has the options of continuing into some of the more outrageous AV genres, retiring, or, sometimes, re-emerging under a new name as a "new face." ..... reference and read more detail AV Idol Wikipedia