System: My Doomsday Train Novel

In a post-apocalyptic world overrun by Corpse Tides and death, survivors become Train Captains to endure. They must gather minerals and resources to upgrade their trains, using them to navigate around the undead hordes and stay alive. The alternative is slavery under other Captains. Chen Mang finds himself transported into this nightmare realm. While all trains have Vehicle Accessories with upgrade level caps that grow stronger with each enhancement, Chen possesses a unique advantage: a natural birthmark grants him the power to upgrade accessories infinitely, breaking past normal limitations. One example is the Spider Foot accessory. At Level 10, it achieves a supermodel effect, shooting two strands of Spider Silk up to 100 meters long that last an hour. The train can then travel steadily along these silk strands, consuming 100 units of Level 1 Spider Silk per 100 meters sprayed.