When Lin Mo was seventeen, his grandfather passed away.
He was left with half a copy of "Du Yin Miscellaneous Notes" with a cowhide cover, and an indelible black line on his wrist.
The old people in the village said privately that this was a Yin contract.
The Lin family has been doing the work of crossing the underworld for generations, but none of them live past the age of thirty.
Originally, he had followed his last words and stayed away from other things, but the girl under the old locust tree at the entrance of the village was borrowed and resurrected, a funeral at the construction site gave birth to a resentful spirit in red, and the school pen fairy brought out the ghost of the bully three years ago... Weird things happened one after another, and if he didn't reach out, someone would die.