Naramaro, who felt threatened by the empowerment of the Fujiwara clan, talked to SAEKI no Matanari again about his plan of rebellion during the Daijo-sai festival (a festival that celebrated the succession of an emperor) to enthrone Empress Koken in December.
藤原氏の台頭に危機感を抱いた奈良麻呂は11月の孝謙天皇即位大嘗祭の時佐伯全成に再び謀反の計画を謀った。