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 Jun Sakaki (榊淳 名, Sakaki Jun).
The same year, Kono came under exclusive Nikkatsu contract with the stage name "Junko Mabuki".
S&M author Oniroku Dan also approved of Mabuki and scripted her first lead role in White Uniform in Rope Hell (1980) especially for her.
Although Oniroku Dan was appreciative of her energy both onscreen and in actual sex life with her,[1] Mabuki was not able to endure the physical strain that the S&M roles required, and she retired from acting after only two years.
[2] Four of Oniroku Dan’s stories, originally published in Japanese in 1997, were published in English in 2010 by Vertical, Inc.[3] The collection of these stories is titled Season of Infidelity; the collection’s last story, Bewitching Bloom, is a telling of Dan’s relationship with Naomi Tani, and also includes notes about three subsequent Nikkatsu "Queens"; Mabuki, Izumi Shima, and Miki Takakura.