Yu Chi-song

Yu ran for political office during the 1963 legislative election, winning a seat in the National Assembly for the Civil Rule Party.

Yu sought re-election in 1967, this time running on the New Democratic Party ticket, but lost his seat.

Yu returned yet again for his National Assembly seat in the 1973 election on the New Democratic ticket, this time succeeding in his effort.

Yu finished second behind incumbent President Chun Doo-hwan, receiving 404 electoral votes (7.67%).

Yu died on 2 June 2006 at Seoul National University Hospital, aged 81, being survived by his two daughters and his son Yoo Il-ho (who would serve as Acting Prime Minister of South Korea in 2017).