Emiko Koike (小池絵美子), born January 1, 1976, in Kanagawa Prefecture, Japan, is a seasoned Japanese AV actress celebrated for her work in the mature woman (jukujo) genre. Standing 161 cm tall with measurements of 90-60-88 cm (F-cup), she was scouted during a job transition and debuted in December 2003 with 'Oppai Campaign Girl' from GLAY'z studio. Koike specialized as a kikatán actress in non-exclusive productions, portraying seductive housewives, stepmothers, and submissive roles for studios including Glory Quest, Madonna, Tameike Goro, and Ruby.
Her career peaked from 2006 to 2009, yielding hits like '義母 絵美子' (2006), 'アナル奴隷夫人' (2007), and '熟女犬エミコ' (2008). She received the Mature Actress Award at the 2009 Sky PerfecTV! Adult Broadcasting Awards. Afterward, AV releases became sporadic; she transitioned to pink films such as 'Shatakuzuma: Nettori furinzuke' (2009), 'Perfect kiss: Nurashite playback' (2023), and 'Naked Dance Partner: Desire Fully Open' (2024).
Today, she stays active via X (@emiko_koike), cabaret performances at Shinbashi's SHUNGA club, and affiliation with Tester agency, using aliases like Saori Sawatari and Chiya Shiomi.