Once upon a time in a faraway land, the world was divided into two countries; the Inner Land and the Outer Land. The humans living in the Inner Land were fearful of the cursed beings that had been forced to live in the Outer Land.

One day, one of those beings from the Outer Land finds a young human girl in a heap of dead bodies. It picks her up and learns that her name is Shiva. Shiva decides to start calling the being “Teacher.”

This story follows these two people, a human and a different creature, as they live together on the border of day and night.