Civilization Testing Ground

When all human beings enter the same world in their sleep, they think it is a game. Only Lin Yuan knew - it was a test. When he died again and again and returned to the past again and again, he finally understood: The condition for passing the level is not to survive, but to change history. From border wars, to dynasty changes, to the rise and fall of civilizations. When he reached the end, he discovered—— Human beings are nothing more than samples in a testing ground.