Aoki represented Japan in the women's ice hockey tournament at the 2014 Winter Olympics, the women's ice hockey tournament at the 2003 Asian Winter Games, the 2012 IIHF Women's Challenge Cup of Asia (CCOA), and at four IIHF Women's World Championships, in the Top Division in 2004 and 2015, and in Division I in 2012 and 2013. Her club career was played with Mitsuboshi Daito Peregrine (now DK Peregrine) of the All-Japan Women's Ice Hockey Championship and Women's Japan Ice Hockey League (WJIHL) and with the Calgary Inferno of the Canadian Women's Hockey League (CWHL).