South Korean order of precedence in the context of "Co-leadership"

The prime minister of the Republic of Korea (Korean: 국무총리) is the deputy head of government and the second highest political office of South Korea. The prime minister is appointed by the president of the Republic of Korea, with the National Assembly's approval. The prime minister may be a member of the National Assembly, but this is not required to hold the office.

Unlike prime ministers of parliamentary democracies, the prime minister of South Korea is not the head of government of South Korea but a senior member of the cabinet, since the president is both the head of state and head of government in the country. The prime minister is the principal executive assistant to the president, and is first in the order of succession; the prime minister assumes the presidency in acting capacity, upon the removal or incapacitation of the sitting president, similar to the vice president of the United States.