 In 1590, he was appointed Uuijeong (Third State Councillor) and "Pungwon Buwongun" (풍원부원군, 豊原府院君).In 1591, he was promoted to Jwauijeong (Second State Councillor) and Ijo Panseo (이조판서, Minister of Personnel, the first ranked of the six Ministries).However, the Easterners faction split into the Southerners and the Northerners.