On October 26, 1003, Korechika was invested with Junii (Junior Second Rank); on April 12, 1005, his precedence was officially decided to be lower than Daijin (Ministers) and higher than Dainagon (chief councilors of state); on May 13, 1005, he was permitted to enter into the Imperial Court again; and on December 22, 1005, he attended a Court Council.
同5年9月22日、伊周は従二位に叙せられ、寛弘2年（1005年）2月25日正式に座次を大臣の下・大納言の上と定められ、翌月26日、改めて昇殿を聴され、11月13日には朝議に参加した。