Tsukiyama Yumiko(月山ゆみこ)

Tsukiyama Yumiko is a JAV actress who appears to have debuted around 2008, judging by the available information, and maintained a presence in the industry for several years, with releases spanning at least until 2012. Her work primarily focuses on the mature woman (熟女, *jukujo*) and married woman (人妻, *hitodzuma*) genres. Many of her titles also highlight themes of infidelity (不倫, *furin*) and feature scenes involving ejaculation inside (中出し, *nakadashi*). Analyzing her filmography reveals a strong emphasis on established genres popular within the mature JAV market. Keywords like "mature woman," "married woman," "big breasts" (巨乳, *kyonyuu*), and specific acts such as fellatio (フェラ, *fera*), cunnilingus (クンニ, *kunni*), and riding position (騎乗位, *kijou-i*) appear frequently, suggesting a consistent output catering to those preferences. There doesn't appear to be a significant shift in genre focus over the period represented by the listed works. Tsukiyama seems to have worked with several different studios. NEXT GROUP appears frequently in the list of her works. She also has releases with other makers like GLAZE (グレイズ) and STAR PARADISE. She has appeared in series such as "Monthly Mature Woman Treasure Hall" (月刊熟女秘宝館) and "Big Breast Mature Woman Will Heal You" (巨乳熟女が癒してあげる). Overall, Tsukiyama Yumiko presents as a seasoned JAV actress specializing in mature woman and married woman content. Her appeal likely lies in her portrayal of sensual, experienced women, often engaging in intimate acts that cater to a specific audience within the JAV market.