The Secret of the Concave and Convex World

Based on the original content, a new character is added. Well, the ending should probably be possible. It will be very cruel, right? Every time you update a chapter, the previous ones may be revised, so be mentally prepared. Sometimes your hands may be shaking, so post the unfinished chapters. What I want to say is that each chapter is generally 1,000 words. If it is less, your hands will be shaking. Intention: I want the storm to come more violently