Ryōko Mitake (美竹涼子, Mitake Ryōko) is a popular and multiple-award-winning Japanese AV idol and glamour model. Throughout her career she alternated between the two AV studios, Alice Japan and Max-A. At the end of her first year in AV, Mitake was given two Best Actress awards in different AV ceremonies, and at the end of her second year she was given an award as second best actress. After two and a half years in the industry, Mitake retired to devote her time to her family.
Ryōko Mitake was born in Tokyo on December 3, 1982. She was not a sexually precocious youngster, and did not engage in sex for the first time until she was 17, with a 21-year-old boyfriend. By the time of her debut in the AV industry, she had had sex with five men. Mitake wears a Japanese E-cup bra, but says that she is not happy with her breasts, which she believes have a "squashed" look.
Mitake was scouted to appear in AVs while in Ikebukuro by a bill-poster for the company. Mitake was immediately suspicious when the scout asked, "Would you like to do nude modeling?" She had watched a few AVs with lesbian or "molester" themes, so she decided to give it a try. Mitake's first AV contract was for twelve consecutive videos to be made alternately for the Alice Japan and the Max-A Samansa labels.