Cheng Jiu went downstairs to buy instant noodles and bought the World of Cultivation, and used the opportunity of instant noodles to learn skills from his master to pass the time. But what happened when a blackened apprentice suddenly appeared in front of him? The surroundings around me are becoming more and more like a novel I have read before. So does he travel through the book or time travel? If so, is there a protagonist in this article? How about a system?