東京音楽大学
Takamori was born in Ichikawa, Chiba Prefecture. She has two sisters. Her father is a dentist and professor of dentistry. She started learning the piano at the age of 3. She went to high school attached to the Tokyo College of Music, and entered the piano department of the Tokyo College of Music. Although she applied for the Nippon Broadcasting System-sponsored amateur voice actor contest while in college and was defeated, she entered Hisashi Katsuta's voice acting school (now voice actor Katsuta Gakuin) in 1983, her sophomore year at university. In the second graduation in the same period, Ayako Shiraishi, Miki Itō, Maya Okamoto and Omi Minami were among the older people of the first generation. In the fall of 1984, while still enrolled in college and the voice acting class, she made her voice acting debut as Patty Pumpkin, the heroine of "Super Power Robot Garat". After debuting, she joined Arts Vision from the voice actor classroom.