“This train is bound for the Abyss. Passengers, please prepare your organs or memories and buy your tickets in turn.”
Lu Ze, a forensic pathologist with severe OCD and an exceptionally rational mind, boards a ghost subway at midnight, a train that will never reach its destination. There is no morality or law here, only cruel, horrifying rules and bloody executions. Beneath the sickly green lights of Car Thirteen, the other passengers are torn apart by uncanny conductors as they cower in fear. But with his mutated “Absolute Memory,” Lu Ze uncovers the logical flaws hidden in the deadly rules, through endless cycles of death and the rewriting of rules.
While others betray their companions or sacrifice limbs to stay alive, Lu Ze is busy exploiting bugs in the System. Contradictory rules? Logical dead ends? With the same rigor he would use to dissect a corpse, the pathologist takes apart the seemingly inviolable rules one by one, turning the execution system against its masters and making high-level monsters his stepping stones.
On this desperate journey through an endless loop, Su Li, a hot-tempered, formidable policewoman from the Major Crimes Unit, becomes his sharpest blade. The mysterious uncanny girl Nightingale enters into a pact of life and death with him, while Lin Chuchu, a timid college student with astonishing instincts, helps him find a way out. As they advance step by step toward the first car, Lu Ze gradually uncovers the massive conspiracy behind this train at the border between yin and yang.
When the Abyss's train conductor tries to enter the real world, Lu Ze nudges his gold-rimmed glasses up his nose. “Your rules for killing don't make anatomical sense.”