Uchida was born in
Tokyo. She practiced fencing in high school, and ranked 3rd in a tournament in Tokyo in 1991. She began her career as a model in commercials, notably for the confectionery company
Lotte (ロッテ), then debuted in acting in 1992 in the
drama Sono Toki, Heart wa Nusumareta. She became a swimsuit model for the swimwear company Unitika in 1993, and got popular as an
idol, partly due to her then unusual tomboyish look with short hair and husky voice. She began to get large exposure in commercials and media, and hosted her own weekly 30mn late radio show,
Yozora ni YOUKISS!, from April 1994 to March 2001 on Nippon Broadcasting. She released her first single at the end of 1994, "TENCA wo Torou!", theme of one of her dramas, which ranked number 1 in the
Oricon music charts, the first time for a solo debuting female singer, with a record of sales in this category only topped by
Erika Sawajiri's debut single 12 years later. She went on a successful singing career for the next two years, her first album ranking number 1, with hits written by
Tetsuya Komuro (notably "Only You" and "Baby's Growing Up"). The latter part of Uchida's music career saw a pivot from
idol music as she began to write her own lyrics, before ceasing activities as a singer in the late 1990s. She was cast in many
dramas and movies, often as the lead actress, most notably in the live movies adaptations of the famous
manga Hana yori dango (Boys over Flowers) (as Makino) in 1995, and ''
Cat's Eye'' (as Ai) in 1997. After ten years away from the big screen, she made her comeback to cinema in 2007, in
Takeshi Kitano's "
Kantoku Banzai!", and in the leading role of "
Welcome to the Quiet Room", movie set in a
psychiatric hospital, in which she appears in all the scenes. Since 2012, she has played anesthesiologist Hiromi Jonouchi in the popular medical drama, Doctor-X Surgeon Michiko Daimon. ==Private life==