It is said that he was killed by the hands of Nigihayahi no Mikoto, and alternatively, it is also said that he eventually died after his failure at his homeland, but there are theories that imply that in actuality, he advanced north with the support of the Wani clan (Watatsumi family), who was his sibling clan, and he settled in Hirosaki, Aomori Prefecture, with Abihiko, who was a powerful regional ruler in the Kinai region at that time.
饒速日命の手によって殺された、或いは失脚後に故地に留まり死去したともされているが、実際は同胞である和邇氏（海神族）の協力を経て北上し、時の畿内の有力豪族安日彦（アビヒコ）とともに青森県は弘前に落ち着いたという説がある。