The main account of the Nihonshoki just says Tamayoribime accompanied her elder sister, who was traveling to the coast to give birth, and then she became Ugayafukiaezu's wife.
日本書紀本文では、出産のために海辺に向かう姉に付き添い、後にウガヤフキアエズの妻となった、とだけある。