Kamimusubi no Kami

Kamimusubi no Kami, according to the first chapter of the Kojiki, was the third kami in existence. His grandson, Kamo no Taketsunomi no Mikoto, manifested himself as the golden Yatagarasu that led Emperor Jimmu across Japan, conquering the various rebellious peoples.

References

http://eos.kokugakuin.ac.jp/modules/xwords/entry.php?entryID=183

Philippi, Donald (trans). Kojiki. Page 47.