She gave up snowboarding after the 2006 Winter Olympics and became a television presenter, then a nude model appearing in several gravure DVDs.
Imai has said she envied others her age for being able to lead ordinary lives, and at one point attempted to take her life by slashing her wrists.
Upon her return to Japan, she suffered public humiliation, with commenters calling her "a waste of tax money" and "a national embarrassment".
Both movies were released by Muteki, an AV company specializing in making the adult film debuts of gravure idols and minor celebrities.
[3] Imai has stated she is not embarrassed by her past in pornography, as she did it voluntarily out of the need for money, and considers herself to have been a good mother who did everything to support her children.