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 1756, he achieved to become Jusanmi (Junior Third Rank), which gave him the title Kugyo.
以降清華家当主として速いスピードで累進して、宝暦6年（1756年）に従三位に達して公卿に列した。