Lin Yan works at an old bookstore in Qingshan City, making a living by repairing ancient books and copying old letters for others. One night, in the Night Rain Manuscript left behind by his father, he finds a strange rule: "Never copy the name of the dead on a rainy night. If you copy the seventh name, the copyist will disappear."
But from that very day, strange disappearances begin one after another in Qingshan City. Before vanishing, each victim had received an unsigned handwritten book. Its pages revealed secrets they least wanted anyone to know.
Lin Yan is dragged into the mystery. As he investigates the truth behind his father's disappearance years ago, he discovers an ancient organization lurking in the city's rainy nights: the Name-Copying Society. They use words as spells and secrets as contracts, manipulate people's hearts, erase the crimes of the powerful, and trade destinies for ordinary people.
As the seventh name draws near, Lin Yan must choose: remain a silent copyist, or use his own pen to tear open the city's dark night.
