She secured her first national title in 2006 and was also runner-up at the Corporate Championships and Japanese Games. Ishino won a second, consecutive national title the following year and also topped the podium at the 2007 Asian Athletics Championships with her time of 13.26 seconds. She won the titles at the Corporate meet and the National Games as well. She made her global debut at the 2007 World Championships, but did not get past the heats stage.