In September 1993, she made her debut in the Young Magazine special edition "Dash" with Gunjou. That same year, she received the 28th Chiba Tetsuya Honorable Mention Award for her work titled "Miss Cast." Her notable representation works include Haruka 17, Frozen, Nanase, Tokyo Kazoku, Minus, and Mother Lucy. She changed her name twice throughout her career, originally known as Oki Sayaka (沖 さやか), then Yamazaki Sayaka (山崎 さやか), and finally Yamazaki Sayaka (山崎紗也夏).