Natural Disaster: Only Humans Have Become Smaller

When I woke up, all humans around the world had shrunk ten times! What's even more despairing is that only humans have become smaller! The pet you held in your hands before has become man's worst enemy. The weapons that could protect oneself in the past are simply not something that human beings can defeat today! If you meet a teddy when you go out, it's a matter of life and death. If you meet a tabby cat, it's a matter of life and death! Those infrastructures have turned into decorations, and the world has been in chaos in a short period of time. Humanity's position as the world's dominant player is in jeopardy!