Due to the death of Emperor Buretsu in 506, the imperial line failed, therefore Kanamura invited a child in Echizen Province of Hikoushi Ou who was a great-great-grandson of Emperor Ojin to let him ascend the throne as Emperor Keitai and Kanamura served Emperor Ankan, Emperor Senka, and Emperor Kinmei since then.
506年の武烈天皇の死により皇統は途絶えたが、応神天皇の玄孫である彦主人王の子を越前から迎え継体天皇とし、以後安閑天皇・宣化天皇・欽明天皇の各天皇に仕えた。