She was the guardian goddess of the Tianqi Dynasty. After her death, she ascended to the immortal realm and watched over the mortal world for a thousand years.
He is the thirty-seventh Imperial Preceptor, aloof and taciturn. He does not believe in ghosts or gods, yet every day he waits for her to speak through the spirit mirror.
The spirit mirror has rules: she can contact him whenever she likes, but he cannot reach out to her first.
The first time she speaks, she says, "Oh, someone new? At least you have a nice voice."
He answers without changing expression, "Your servant, Shen Du."
She teases him for being no fun, but from then on, she comes by every night.