Kokubo Yumiko(小久保ゆみこ)

Kokubo Yumiko is a Japanese adult video (JAV) actress who debuted around 2008. Her career appears to have been active for a few years following her debut, with a noticeable presence in the mature woman (熟女/jukujo) and married woman (人妻/hitodzuma) genres. Based on her work titles and genre tags, Kokubo's roles frequently involve mature female characters in scenarios featuring riding positions (騎乗位/kijou-i), and sometimes more explicit acts such as face-sitting (顔射/gao-sha) and group sex (3P/4P). Some of her works also feature elements of bondage (拘束/kousoku) and cunnilingus (クンニ/kunnilingus). Her filmography includes appearances in series produced by Crystal Eizo (クリスタル映像) such as "Kanjuku Madam World" (完熟マダムワ～ルド) and series produced by Athena Eizo (アテナ映像) such as "Zenkoku no Ero Okusan Asoko Araote Mattoke ya" (全国のエロ奥さん アソコ洗おて待っとけや) and "Okusama Yokujo Nikki" (奥様欲情日記), suggesting a sustained working relationship with these studios during her active period. Her style centers around the mature woman archetype, performing in scenes that emphasize the allure and experience of older female characters.