Career
In 991, the 10th year of King Seongjong"s reign, as he passed gwageo or civil minister exam, with the highest point, he entered to the court. When Kim Chi-yang (金致陽) plotted to throne his natural born son in 1009, the 12th year of King Mokjong"s reign, Choe prevented the conspiracy by helping Hyeonjong, to ascend the throne along with Chae Chung-sun.
