Omamori-sama

A zashiki warashi spirit imprisoned by the Takatori family in order to ensure the family's prosperity. During her imprisonment Omamori has been comforted by a long line of white-haired women including Saya's mother. She foretold the coming of a boy with a spear who would free her from her imprisonment, this was fulfilled when Ushio came to the Takatori house and destroyed the barrier imprisoning her. Even after the destruction of the Takatori household she remains behind to watch over Saya. She sides with Ushio during the attack of the Tono and spoke to Osa on his behalf.

(Source: Wikipedia)