Ozawa was born in Hokkaidō, Japan. Her mother is Japanese and her father is Canadian. Since she always attended an international school, she claims that her English reading and writing ability is better than her Japanese. While at school, Ozawa played hockey every day, and often went to karaoke after class. She says she became sexually active at the age of 13, and learned the "48 sexual positions" from a book she bought herself.
While still a student, Ozawa appeared in a short (30 second) Japanese TV commercial for DARS Chocolate with the two members of the Japanese pop group KinKi Kids. The commercial has her sharing chocolate with one singer while secretly holding hands with the other.
