Civilization: Genetic Nirvana

What is the real trial? Isn't the biochemical apocalypse tragic enough? Aliens have arrived, but they look exactly like humans They call themselves the 1st, 2nd and 3rd civilizations, and we are the fourth civilization their brother What exactly is the Nirvana Plan? Is it a gift? But it wasn't until Zhou Si buried his family with his own hands that he realized that the zombie virus was a gift from his brothers. And the judgment is still coming maybe The day when mankind is destroyed will be the day when civilization reaches nirvana.