Alien Invasion, This Happened to Me in My Last Class

I encountered a UFO at the beginning, but I didn't expect that this time it would actually look like an alien invasion. Is the end of the world coming? Last class, we encountered an alien invasion of the earth. There is no golden finger at the beginning, what should I do? Wu Youwei accidentally became a battlefield internet celebrity The zombie virus is coming, and the number of humans is decreasing rapidly.