Exchange World

Exchange World is a science fiction and fantasy web novel by Hanye Shiyin serialized on Qidian Chinese Network, complete at about 600,000 characters. The protagonist is an ordinary boy in the real world who, after an accident, gains a special ability called the "Exchange System," which allows him to travel to one plane world after another. Each "exchange" means a new identity, new rules, and new dangers; he moves among academies, cities, other worlds, and other settings, fighting zombies, warriors, espers, and various formidable enemies, repeatedly testing his limits on the edge of life and death. The novel is labeled "slaughter flow"; its early tone is dark and oppressive, and the protagonist gradually becomes cold and decisive in a brutal environment, growing from a weakling passively struggling to survive into someone who can dominate the situation. The word "exchange" in the title is both the ability setting that runs through the whole book and the work's core metaphor: to get something, you must pay the corresponding price. The book has about 238 chapters in total, and the final chapter concludes with "Opening the Door to a New World," completing the leap from narrow planes to a broader world. The work is tightly paced with fast plot progression and a strong flavor of genre fiction, suited to readers who like infinite flow and plane-crossing themes.