Ugayafukiaezu

Ugayafukiaezu no Mikoto "Unfinished Cormorant-Feather Thatching" 鵜葺草葺不合命, commonly shortened to Ugayafukiaezu, is a Japanese (kami) [spirits, not deities], and in Japanese mythology, he is the father of Japan's first emperor, Emperor Jimmu.

In the Kojiki his name appears as Seaside Brave Lad of Unfinished Cormorant-Feather Thatching (天津日高日子波限 建鵜草葦不合命, ama tsu hikohiko nagisa take u ga ya fuki aezu no mikoto^?) and in the Nihon Shoki the same name appears with a different spelling.

Ugayafukiaezu was a child of Hoori "Flickering Flame" (the son of Ninigi-no-Mikoto "Ripening Rice-Ears Lad", who was sent by Amaterasu to rule the Earth), and of Toyotama-hime or "Lady Bountiful Soul", a daughter of Ocean Majesty (now identified as the dragon king, Ryūjin).

Although Lady Bountiful Soul became pregnant at Ocean Majesty's undersea palace of Ryūgū-jō, she opted not to bear the child in the ocean and decided to head to shore.

On the shore, the parents attempted to build a house in which she could give birth, and attempted to construct the roof with feathers of the cormorant instead of saw grass. However, while they were finishing the roof, she went into labor.

And so just as she was about to give birth, she spoke to her husband, saying:

"When their time draws near, people of other lands all give birth in the form of their homeland. So I will now give birth in my original form. Please, I beg you, do not look at me!"

Now, thinking these words strange, he sneaked up and peered in at her just as she was about to give birth.

...
Wikipedia