In Luofeng Town, deep in the mountains of the south, countless unwritten rural taboos have been passed down from generation to generation:
You can't walk on the night road without lights, you can't fish for floating clothes in the mountain pond, you won't look back during the Qingming Festival, you won't plant trees behind your house, you won't set foot in an empty house...
These are not superstitions, they are all rules used by our ancestors to suppress the injustices of living people, cover up old secrets, and repay old debts.
The heroine's grandmother is the last "secular teacher" in the town. She does not catch ghosts or exorcise evil spirits, but only explains folk customs, breaks taboos, and balances cause and effect.
After her grandmother passed away, the heroine, who was studying abroad, was forced to return to her hometown and took over an old house and a incomplete "Country Customs Book".
Every time a local strange story is solved, an old injustice that has been covered up by the whole village is revealed.
