Saki's father, a pianist, passed away, leaving her mother to raise her and her siblings as a single mother. Saki trained in ballet as a child and attended Horikoshi High School. In 1987, while trying to raise funds to study abroad with the intention of becoming a ballerina, she learned about the "3rd Cinderella Contest," which she won. This victory shifted her career focus from ballet to modeling.
Later, she ventured into acting and met Kinji Fukasaku, who cast her as Oiwa in "Chushingura Gaiden: Yotsuya Kaidan" (1994). This role marked a breakthrough in her acting career, earning her critical acclaim and the Best Actress award.
she had two sons from her ex husband Naoki Hosaka and daughter who is born in 2010 from previous relationship. since 2014, she had relationship with Atsuhisa Matsumura.
