They are a hitorigami, and the third of the first three kami to come into existence (Kotoamatsukami),[1] alongside Ame-no-Minakanushi and Takamimusubi, forming a trio at the beginning of all creation.

[3] Since the Izumo gods are not mentioned in Nihon Shoki, Kamimusubi exists only as a kinematic pair of Takamimusubi.

[4] While being an Amatsukami ('Kami of heaven'), Kamimusubi has a strong connection to Kunitsukami ('Kami of land') in Izumo tradition.

During the medieval and early modern periods, Motoori Norinaga in his commentary on the Kojiki wrote that Kamimusubi and Takamimusubi are the “First Ancestors of heaven and earth, of the kami, and of all existence”,[6] placing greater importance on them over Ame-no-Minakanushi.

This viewpoint challenged the belief of the Watari Priesthood, which was that Ame-no-Minakanushi was more important than Kamimusubi and Takamimusubi because they were created first.