Rusty Dusk: Beneath the Gray Realm

It is a full-length online novel about doomsday zombies, with a total of five volumes, one thousand chapters, and approximately 2.2 Million words. The story is not satisfied with the classic proposition of "human beings versus zombies", but instead asks a more cruel question: when the color of the world is disappearing bit by bit, when memory and perception are being eroded - can you still confirm that you are a "human"? After the zombie outbreak, the survivors quickly discovered a phenomenon even more terrifying than the zombies - the sky faded from blue to gray, the plants withered from green to gray, and even human skin and pupils were slowly "losing color". Scientists call it "rust phenomenon." It and zombies interact with each other: the more zombies, the faster the rust; the deeper the rust, the stronger the zombies. Humanity retreated to seven fortress cities. This is the fifth year of the end. The protagonist, Chen Mo, is an ordinary field collector in Iron Dome City - he was a graduate student in the Department of Biology before the end of the world, and his research direction is "cell adaptability in extreme environments." Ironically, he is now becoming the best "adapted" experimental subject - he was scratched by a second-level zombie during a mission. Not only did he not die, but he unknowingly acquired a unique superpower: rust empathy - sensing the location of the zombie, reading the energy flow of the zombie, and even - under certain extreme conditions - "seeing" the residual memory of the zombie. But every increase in superpower corresponds to an irreversible gray line on the body. Start at your wrists and slowly crawl toward your heart. The day the lines reach his heart - is he still human? No one knows the answer. Including himself.