Grandpa left behind a shabby notebook, with the title page saying: "If you open this book, it means you have entered the restricted area."
Lin Shouye, a graduate student in folklore, entered the Paper Wedding Village to write a thesis and found seven strange rules engraved on a stone tablet at the entrance of the village. After dark, his teammates turned into paper figures, and the road to the village entrance disappeared—he was trapped in a folk forbidden area that had been in operation for three hundred years.
The only thing that can save him is the notebook. It can see through the "truth notes" behind each rule and tell him which rule is false, which is a trap, and which "person" is not a human.
But the manual has a blind spot: rules it can't parse will kill him.
From the Paper Wedding Village to the Night Parade of Hundred Ghosts, from the closed-door deadlock to the origin restricted area - each restricted area has a set of rules that must be followed. If you violate one, you will be devoured. The traitors within the Night Watch organization are more dangerous than the restricted area.
What secret did grandpa discover thirty years ago? Why did Manual choose him?
When all the rules can be rewritten – who still follows them?