Fantasy: the World Runs Rampant in the Book

This is an invincible novel. It tells the story of the protagonist who travels to a familiar book. He remembers the plot clearly, and finally changes a lot of regrets, making many story endings full of drama and making up for a lot of regrets. There is nothing to say but it is amazing. It is also for him that he gained the world and gained a lot in the book. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.