Originally Posted by
Lily Emilio
It goes both way due to how the mitama system works. Golden Fox is Amaterasu's Aramitama, and Good girl Amaterasu is Amaterasu Nigimitama. These two are different facets of one single soul, essentially one single being but at times this being is nasty, but at time shes cool. It's different from the bunreis like Daji or Tamamo who splits from her into actual different souls of different entities originated from the original.
However, because these 2 personas are so contrast of each other, Shinto generally considers these 2 facets as different deities (eventhough they are the same being). Becuz you don't want your benevolent chief god to be seen in her terrifying persona. This duality represents the natural phenomenon associated with the kami. The sun is the source of heat for life (Nigimitama, the good girl side), but it can also cause drought and destroy life (Aramitama, the bad girl side).
So the Ise Grand Shrine worships Amaterasu in one side, and in the other side of it worships the Aramitama of Amaterasu (has no known separate name). Nasu took that chance to create Konjiki Hakumen, an OC fox spirit that act as the Aramitama form of Amaterasu, but also the origin point of other nasty fox spirits.
This mechanic actually originated from Buddhism as well, where you have wrathful manifestations of Buddhas, like how Acala (the dude in Musashi's NP) is wrathful version of Vairocana in Esoteric Buddhism. Normally Vairocana is this loving, peaceful Buddha. But when he needs to use force to destroy evil, he pulls out his Acala persona.