Career
Born Sumiko Kono (河野 寿美子, Kono Sumiko), she made her acting debut by 1979, in Aftermath of Battles Without Honor and Humanity (Eiichi Kudo), with the alias June Sakaki (榊淳 名, Sakaki June). The same year, Kono came under exclusive Nikkatsu contract with the stage name "Junko Mabuki". South&M author Oniroku Dan also approved of Mabuki and scripted her first lead role in White Uniform in Rope Hell (1980) especially for her.
Following Naomi Tani"s sudden retirement in 1979, Mabuki was promoted by Nikkatsu as their new "Master of Science Queen" (SMの女王, Master of Science no joō).
Although Oniroku Dan was appreciative of her energy both onscreen and in actual sex life with her, Mabuki was not able to endure the physical strain that the South&M roles required, and she retired from acting after only two years.