Yagi Masako(八木雅子)

Yagi Masako is a Japanese Adult Video (JAV) actress who appears to have debuted around 2010. Based on the available information, her career seems to have been active for at least a couple of years. Her work primarily focuses on the mature woman ("熟女" - jukujo) genre. The titles and genre tags associated with her films suggest a focus on mature women in scenarios involving massage, pick-up scenes ("ナンパ" - nanpa), and riding positions. The limited information makes it difficult to assess any significant genre evolution during her career. However, the consistency in the "jukujo" tag indicates a clear specialization within this niche. The available titles indicate that she has worked with the studio Ruby. She has also appeared in the series "熟女風俗最前線" (Jukujo Fuzoku Saizensen). In summary, Yagi Masako appears to be a JAV actress specializing in the mature woman genre, primarily working with Ruby and known for her roles in scenarios involving massage and pick-up situations.