Yuko completed for her final year of high school as an exchange student in Washington state, U.S.A.. She then went on to study economics at the Minneapolis community college and University of Minnesota. On returning to Japan, Yuko worked at an international sales department of a medical and industrial equipment manufacturer and she was in charge of the North American and Oceanian regions. She has also had one and half years experience teaching students aged 3 to 12 years at a private English school.