001 Natural Disaster

In 2120, a terrible virus swept across the world, leaving only 1 billion people in the world. But this was not over yet, and there was something even more terrifying. This made the remaining humans understand that the natural disaster was far from over. (The author is a student and it is my first time to write a book. I may update it intermittently. If there is something wrong in my writing, please point it out. Thank you.)