Yonetsu was born in Osaka Prefecture on December 4, 1979. After graduating from Himeji Gakuin Women's Junior College, she joined her local club Toyotsu Ladies FC in 2000. In 2004, she moved to Nadeshiko League club INAC Leonessa (later "INAC Kobe Leonessa"). She played 129 matches and scored 62 goals for the club. She retired end of 2011 season.