Summary
The heroine of this work is a survivor of the "Sanjiyan" (Three-eyed ones). She appears to be a teenage girl, but she is over 300 years old. She has two personalities, referred to as "Pai" when the third eye is closed, and "Sanjiyan" when the third eye is open. Additionally, her name in the work, Pārvatī, is the name of Shiva's second wife in Hinduism.
Attracted by the "holy power" that humans possess, she decides to become a human and meets the protagonist of this work, Fujii Yakumo, while on a journey seeking a way to become human.