Toyotama-hime is a goddess in Japanese mythology who appears in Kojiki and Nihon Shoki. She is the daughter of the sea deity, Watatsumi, and the wife of Hoori. She is known as the paternal grandmother
Toyotama-hime with her younger sister Tamayori-hime
Ugayafukiaezu no Mikoto is a Shinto kami, and is in Japanese mythology, the father of Japan's first Emperor, Emperor Jimmu.
Toyotama-hime giving birth to Ugayafukiaezu by turning herself into a wani in an 1886 illustration