Koyama Mayumi(小山真由美)

Koyama Mayumi is a Japanese Adult Video (JAV) actress who began her career around 2005. Based on available information, her career appears to have been relatively brief, with her activity centered around the mid-2000s. Her filmography suggests a focus on titles containing elements of female dominance and mature themes. The tags associated with her work, such as "kunni," "mature woman," "big breasts," and "fellatio," indicate a leaning towards genres that explore more explicit and perhaps fetish-oriented interactions. The title "28歳… 見つめながらしゃぶられて…" (28 years old... Sucked while gazing...) also points to themes of age and experience within the context of the JAV scene. While it's difficult to definitively assess genre evolution based on limited data, the consistent presence of tags associated with mature women and specific sexual acts suggests a relatively stable focus throughout her career. KT Factory appears to be one of the studios she worked with. The title listed is part of the series "見つめながらしゃぶられて…" (Sucked while gazing...), indicating she may have been involved in multiple installments. In summary, Koyama Mayumi presented a mature and sexually confident persona in her JAV work, primarily focusing on genres that explored mature themes and specific sexual acts. She is best known for her roles in the series "見つめながらしゃぶられて…".