The 10th century saw the appearance of Tadayuki KAMO and Yasunori KAMO, a father and a son who mastered all Ommydo, Tenmondo, and Rekido, and ABE no Seimei, one of their disciples and a superb Ommyodo diviner, who was fully trusted by the imperial court.
10世紀には陰陽道・天文道・暦道いずれも究めた賀茂忠行・賀茂保憲父子が現れ、その弟子から陰陽道の占術に卓越した才能を示し、宮廷社会から非常に信頼を受けた安倍晴明が出た。