Shima was born and raised in Tokyo. She has an MBA from Columbia Business School and over 20 years experience in finance at global investment banks in Tokyo and New York. Wishing to spend more time with her family, in early 2013, Shima relocated to Durham, North Carolina where her husband is a professor of Japanese history at Duke University.
Through her experiences of living outside Japan Shima realised that she wanted to introduce her native country to others. To this end she joined Walk Japan in 2013 as a tour leader and, when back home in the US, also promotes the appreciation and consumption of Japanese sake.
While living in New York Shima became an avid city walker. It is a passion she added to her other ones for wine and medieval churches that have taken her on travels to many European countries.