Since then, as the head of the Seiga family (the second highest family status for the court noble in Japan at that time), he was successfully promoted in the Imperial Court in a short period; In 1748, he achieved to become Jusanmi (Junior Third Rank), which gave him the title Kugyo; This happened after he experienced the positions of Chamberlain, Sakone no Shosho (Minor Captain of the Left Division of Inner Palace Guards), Ukone no Chujo (Middle Captain of the Right Division of Inner Palace Guards) and Sagami no Gon no Suke (provisional vice governor of Sagami Province).
以降清華家当主として速いスピードで昇進し、侍従・近衛府・近衛府・相模国を経て、寛延元年（1748年）に従三位となり、公卿に列する。