Natural Disasters!, there are so many things that we have seen and learned at some point and there are still many other phenomena that we have never met and never imagined. Like this phenomenon, it looks like a bit of smoke and it floats a little until it comes to a downtown area where everyone runs into everyone's home.
When that phenomenon came, it was like rain but it was unusually rainy and the people at one point couldn't see their surroundings. Like rain mixed with smoke, you rarely see in such a phenomenon very well.