Meeting Konohanasakuyahime
When Hikohono-ninigi-no-mikoto was at Kasasa-no-misaki, he met a beautiful girl. He asked the girl her name and she answered she is Kamuatatsuhime, also called Konohanasakuyahime, a daughter of Ōyamatsumi-no-kami.
Hikohono-ninigi-no-mikoto also asked her if she had any siblings, and she answered she has a elder sister, named Iwanagahime.
Falling in love, Hikohono-ninigi-no-mikoto asked Konohanasakuyahime to marry him. However, she said that she can't answer, and she has to ask her father, Ōyamatsumi-no-kami. Hikohono-ninigi-no-mikoto sent Ōyamatsumi-no-kami a messenger. Ōyamatsumi-no-kami felt really happy, and let him marry Konohanasakuyahime, together with Iwanagahime, and sent momotori-no-tsukue-no-shiromono.
However, because Iwanagahime was terribly ugly, Hikohono-ninigi-no-mikoto refused Iwanagahime and sent her back. Then, Hikohono-ninigi-no-mikoto spent a night only with Konohanasakuyahime.