In Fog Harbor, a city shrouded year-round in grayish-purple mist, the delivery business hides terrifying secrets. Changfeng Express delivers more than just packages: it carries all manner of eerie supernatural phenomena. Ma Yuan, a former firefighter turned courier, loses the lines on his right palm and unexpectedly gains the ability to touch a package and see the recipient's death within the next 24 hours.
In the city's shadows, Zhong Wujiu, a fugitive from the Time Administration, poses as the owner of an antique clock shop. He controls "time leeches" and sends fragments of time through the mail, trapping recipients in an endless cycle of torment. His only goal is to resurrect his sister, who died in a delivery van accident.
Lin Xia, a pianist who awoke from a vegetative state, loses her memory every night at exactly 7:07 and relies on memory capsules in her deliveries to stay alive. Lao Wu, a one-eyed veteran and branch manager, is secretly a time enforcement officer. His pocket watch holds Ma Yuan's erased childhood. The mysterious woman in a qipao, Bai Lu, is actually a temporal mirror image created by Zhong Wujiu.
While making deliveries, Ma Yuan discovers a special package that triggers a time anomaly. He embarks on a perilous journey to solve the death omens and fight the time thief, while the mystery of his past gradually comes to light.
The delivery process is twisted into something monstrous, and time tricks abound. Each chapter ends on a cliffhanger marked by a "death countdown," blending workplace elements with touches of light horror. The story combines classic films' time loops and narrative structures with real events from the delivery industry to explore the ills and emotional struggles of modern society. Follow Ma Yuan into a temporal labyrinth set in motion by a delivery.