Edited sentence: In 983, Seo became Byeonggwan eosa (兵官御事), the title in charge of military affairs.Since Seo Hui passed gwageo, the state examination with a highest grade, in March of 960, the 11th year of King Gwangjong's reign, he served for the government as the Gwangpyeongwon eorang (廣評員外郎) and Naeui sirang (內議侍郎) posts.Soon after that, he took important positions like Naesasirang pyeongsangsa (內史侍郎平章事), the second rank of Naesaseong (Supreme Council during the period), and finally raised to a highest position with the Taebo Naesaryeong title, the head of Supreme Council