Ikutsuhikone

Ikutsuhikone (イクツヒコネ,活津日子根命/活津彦根命) is a god of Japanese mythology. He is the fourth son of Amaterasu. In many versions of his birth story, he is born from Amaterasu’s jewels after being chewed up and spit out by Susanoo-no-Mikoto.

He was fourth born of the five children of the jewels of Amaterasu. In another version he comes from Susanoo-no-Mikoto's jewels directly and is thus his son.

Birth
He was born out of a kami-making competition between Amaterasu and Susanoo. In many versions of the story, Susanoo took Amaterasu's beads and crushed them within his mouth, which created five male kami. The first one to be born was Amenooshihomimi, second was Ame-no-hohi, third was Amatsuhikone, fourth was Ikutsuhikone, and Kumanokusubi was the fifth.