amaterasu (fate)
Fate/Type-Moon's version of the Shinto goddess of the same name, first appearing in Fate/EXTRA CCC.
The source of Tamamo, who split from her as an avatar/bunrei/incarnation before being splitted into nine entities. Exclusive to the same game, the player can unlock Amaterasu's costume for Tamamo by completing quests.
This tag implicates tamamo_(fate) (learn more).