Sato was born in Kawasaki, Kanagawa, Japan and graduated from Hiji Women Gakuen High School.
She won the 6th Japan Bishōjo Contest Grand Prize with Ryoko Yonekura in 1992.
Despite sluggish in her debut, Sato co-starred in Seifuku Kojo Iinkai unit Icebox for a period of time.
Sato had a wide range of activities, such as presenting the Fuji Television series Unbelievable and playing a nurse in the NHK asadora Chura-san, and had the same level of popularity with the Japan Bishōjo Contest Grand Prize winner Yonekura.
He knew her when she was in a riding club, and during her 30th birthday on 26 September 2007, Sato later announced that she married him.