If you are looking for her specific filmography or videos, you can search for her name on major Japanese AV databases or retail sites using the following terms: 真芝鏡花 (Mashiba Kyōka)
Videos featuring Kyouka Mashiba are often cross-referenced with IDs such as 10musume-1007_01 or similar numerical strings from 2009-2011, though official metadata remains volatile due to site shutdowns. -10musume- -- kyouka mashiba- -