This environment produced some charismatic onmyoji including SHIGEOKA no Kawahito and YUGE no Koreo and, also, a change of era name to eliminate the effect of disaster based upon 'Shinisetsu' (a periodical prediction theory) preached by the Chinese classic scholar Kiyoyuki MIYOSHI was implemented in 901, which thereafter became a custom, further strengthening the influence of Onmyodo in the Imperial Court.
この環境により、滋岳川人、弓削是雄(ゆげのこれお)らのカリスマ的な陰陽師を輩出したほか、漢文学者三善清行の唱える「讖緯説（しんいせつ）」（周期的予言説）による災異改元が取り入れられて901年（延喜元年）以降恒例化するなど、宮廷陰陽道化がさらに進んだ。