Sung Jae-gi (Hangul: 성재기; hanja: 成在基 [sʰəːŋ dʑɛgi]; September 11, 1967 – July 26, 2013) was a South Korean men's rights activist and anti-feminist. He was the founder and first header of Man of Korea, a men's rights group advocating the abolition of the Ministry of Gender Equality and Family, whose Korean name (여성부; 女性部) literally translates as "Ministry of Women", and compensation demand of the South Korean military time's all sorts of limit.