Mizuno Ryoko(水野良子)

Mizuno Ryoko is a Japanese Adult Video (JAV) actress who debuted around 2004, indicating a career spanning at least several years. Her work history suggests a focus on the mature women (人妻・主婦) genre, particularly featuring amateur or "non-professional" (素人) performers. Early in her career, she appeared in compilation or "best of" (ベスト・総集編) releases focused on amateur married women, like those in the "素人マダムズ" series from Alice JAPAN. Later works suggest a shift towards more explicit and individual titles. The presence of tags like "squirting" (潮吹き), "anal" (アナル), and "cunnilingus" (クンニ) in her later works indicates a move toward more hardcore and diverse content. Her later works seemed to be mainly released by the studio, Gen-ei-sha. While she appeared in various single-title productions, Mizuno Ryoko also participated in series such as "奥さんいいじゃないですか" (Okusan Ii Janai Desu ka) from Gen-ei-sha, showcasing her work within established brand names. Overall, Mizuno Ryoko's career appears to have centered on the married woman niche, with an evolution from amateur-focused compilations to more explicit and varied standalone productions.