Fifteen-year-old Firiel lives in the remote highlands with her reclusive father. Country life is pleasant enough for Firiel--her father's servants adore her, his apprentice Rune is a good friend, and she's about to attend her first ball! But as Firiel prepares for the gala, she discovers her past is more complicated than she had thought--and she may be the heir the throne! Unaware of the danger that faces her and those whom she loves, Firiel courageously quests for the truth. In this unique, evocative Cinderella story, heritage and destiny converge to change a young girl's life forever!
(Source: Tokyopop).

From Dan of Population GO:
Based off of the novels. Izumiko Suzuhara has been raised in a shrine all her life. Besides for that and her extreme inability to use electronics she is a normal girl. Or is there more that we don't know about? Her parents are both abroad and still hold a huge amount of control on her life, perhaps too much control needed for an ordinary girl...

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The story revolves around Izumiko Suzuhara, a 15-year old girl who has been raised at Tamakura Shrine, part of the Kumano Shrines World Heritage Site. She destroys any electrical device that she comes into contact with.

Despite being shy, she wants to try living in the city. Her guardian Yukimasa Sagara recommends that she enroll at Hōjō High School in Tokyo, accompanied by his son and Izumiko's childhood friend Miyuki Sagara.

While in Tokyo, an entity named "Himegami" appears. Izumiko learns that she is a yorishiro, a vessel for a shinto spirit known as a kami, while Miyuki learns that he is a yamabushi, a warrior tasked with protecting her.