Tadayuki was surprised that his own child had the talent of Kenki (the ability to see spirits) without training, and instructed him Onmyodo from that time hence.
忠行は、我が子が修行を積まなくても見鬼（鬼を見る能力）の才を身に着けていることに驚きいり、以後陰陽道を指南したという。