Apocalypse: Building a Castle

On this day, an earth storm destroyed the earth's magnetic field, and changes occurred in animals and plants around the world, including humans. Mutated plants, mutated animals, and zombies have appeared on the earth. Temperatures on Earth change dramatically and the seasons are out of balance. A large number of people died unexpectedly. But there are some survivors. Xu Chuyun is one of them. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.