Uehara Sachiko(上原幸子)

Uehara Sachiko is a Japanese Adult Video (JAV) actress whose career appears to have begun in the late 2000s and continued into the early to mid-2010s, based on the release dates of her listed works. Her primary genre focus is clearly on mature women ("熟女," *jukujo* in Japanese), often featuring themes related to older women and their experiences. Her filmography includes titles that highlight this demographic, with several works explicitly using terms like "forties," "fifties," and even "sixties and seventies" in their titles, suggesting a focus on a wide range of mature ages. Common themes within her work include oral sex (*kunnii*), finger stimulation (*yubiman*), and riding positions (*kijou-i*), indicating a variety of performance styles within the mature genre. She also appears in works featuring traditional Japanese clothing such as kimonos and yukatas. Uehara has worked with several makers, but Gen-eisha (現映社) appears to be a frequent collaborator, as many of her listed titles are produced by them. She has also appeared in several series, including "大年増 極楽の11人" (Ootoshi Masa Gokuraku no 11-nin), "新 三十路だ！四十路だ！五十路だよ！" (Shin Misoji da! Yosoji da! Isoji da yo!), and "五十路だよ！" (Isoji da yo!), suggesting a recurring presence and popularity within these established mature-themed collections. In general, many of her works seem to be compilation or best-of releases, indicating a substantial body of work. Overall, Uehara Sachiko's career in JAV focuses heavily on the mature woman genre, with a variety of performance styles and collaborations with specific studios and series.