In the Kojiki, Kotoshironushi is the son of Ōkuninushi, the earthly deity of Izumo province.
When the heavenly deities sent Takemikazuchi to conquer Izumo, Ōkuninushi deferred the decision over whether to resist to his two sons.
Kotoshironushi, who had been fishing at the time of Takemikazuchi's arrival, agreed to accept the rule of the heavenly gods, surrendered his spear and left Izumo.
[3] Kotoshironushi is the principal deity of the Asuka shrine,[4] and is associated with the god Ebisu.
[5] In mythology, he was an adviser to Empress Jingū during her invasion of Korea.