Under such situations, Asateru climbed up the ladder of promotion steadily compared with his brothers, and eventually he became Dainagon thanks to his intimate relation as drinking buddy with FUJIWARA no Naritoki and FUJIWARA no Michitaka, who was the eldest son of Kaneie and later became Kanpaku and Sessho (regent).
そのような中、朝光は藤原済時とともに、兼家の長男で後に関白、摂政となった藤原道隆の飲み友達として親密な仲であったため、他の兄弟よりは順調に昇進し、大納言に至った。