The Dreamer's Doomsday Travel Notes

[A newbie writes a book. I just hope someone can read it and comment on where it can be improved. I would be most grateful. The seemingly normal city was turned upside down in one day. Demons, vampires, witches, dragons,... Many of the relatives and friends we once knew have been twisted and degenerated into the remnants of the abyss. Chaos has come to the world, and how can the remaining humans, who are defined as food, survive. Is it truth or fantasy that leads people to tomorrow? It's a story about an alien world that developed very similar to modern times due to some unknown reasons. Under the sudden doomsday, a young man named Lin Xiao relied on various weird fantasy weapons to fight monsters.