Madoka Ozawa made her adult video (AV) debut at age eighteen with the video Pure Love for the Media Station Cosmos Plan label in December 1996. Another early work for the same studio was the January 1997 release 18 Dreams. Ozawa made several more adult videos for Cosmos Plan before moving on to another major studio, h.m.p, by October 1997. From early 1999, she also worked with Alice Japan and Atlas21 where she made Legend Of An AV Idol in May 1999. This was a documentary-style AV supposedly describing Ozawa's adolescence, her early sex-life, and the story of how she became an AV queen.