Ame-no-Fuyukinu is the son of Omizunu and Futemimi [ja], the husband of Sashikuni Wakahime [ja][4][5] and the father of Ōkuninushi[6](Ōnamuchi)[7].
The Kojiki extensively documents his genealogy.
It says Amenofuyukinu married Sashikuni Wakahime [ja].
This sword was to go to the Plain of High Heaven to be delivered to Amaterasu[1] Amenofuyukinu is worshipped at Hinomisaki Shrine.
The ritual is based on the Kusanagi sword myth.