Disaster: the Time of Caius

(Author: My writing skills are limited and my pen name is already occupied. I'm laughing to death) There are countries and history here that are very similar to the real world; but there is no doubt that this is not a peaceful world, or that the wars in this world have long since dispersed. In a disaster called "disaster", humans must give up all disputes over interests and share the same hatred. Disaster: First appeared in 2000, this kind of thing has no roots and is invisible. It will only appear in the history of the world. It will constantly modify history to affect the real world. The modified historical events seem to have never happened. For example, Newton did not discover gravity, Qin Shihuang did not unify, or Einstein died at the age of 18... Of course, this is not the only threat. From the history of the monks, a kind of monster named "Beast" will be born. They will reappear in the real world directly through the monster. The beast cannot be governed entirely by its own instincts. They reacted to hunt the food in their eyes - all organic and inorganic things in the world; but fortunately, with the advent of the disaster, it was not only despair - the "residents" seemed to be a blessing from God. This group of people who could freely come and go to cause disasters came to us eight years after the disaster came. They spontaneously established an organization called "Caius" to fight against the disaster.