A rare item should always be protected.

Izumiko Suzuhara is not what you would call social. Raised in the remote mountains by her grandparents and with a penchant for modern technology to break at her fingertips she's learned to grow up by herself.

In a bid to step out of her shell, Izumiko enrolls into a school based in Tokyo along with Miyuki Sagara, her estranged childhood friend. Together they discover that Izumiko is more than your typical shy 15 year old and in fact is a vessel for the goddess known as Himegami with Miyuki tasked as her guardian. Forced to get along with their entwined destinies, Izumiko and Miyuki are battling an uphill battle in Red Data Girl.