Growing up in the Apocalypse

The close contact between human beings and extraterrestrial civilizations has turned out to be a disaster for mankind. Is the earth becoming a testing ground for other civilizations, as experts predicted, or is there another hidden reason? Where will mankind go, unaware of all this? The protagonist will go through those hardships again. The girl rescued during the escape behaves abnormally. Does she have any secrets that cannot be told? What kind of crisis is hidden behind these secrets? Is mankind definitely going to perish? Is there any other way to save itself? If the earth really cannot survive, should we choose to be forced to leave our homeland? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.