Sung was born Hyomokdong in Daegu. he was studying Daeryun middle school, Daeryun high school and Yeungnam University(1985-1993). In 1987 until 1990, he served in the army, 11th Infantry Division, at Dongsong town, cheolwon in Province Gangwon. In his early years, he was a business man. after 2000 to November 2006, he was Operate Thomas MacFly consulting &amp; headhunting company(��� ���� ��� &amp; ����), in Daegu and Busan, Seoul.