Kikyo appears as a powerful priestess active roughly 500 years before the main story's events. Her history includes sealing the plant-demon Root Head immediately prior to her first meeting with Inuyasha. Kohaku later recounts this sealing during his travels, citing Kikyo's unyielding strength as a significant personal inspiration.

Her spiritual presence persists within the Sacred Tree of Ages, which adopts Kikyo's form to communicate with others in the narrative. This manifestation acts as a conduit, offering guidance or information pertinent to unfolding events.