, there were human civilizations on Earth. They just disappeared over time. 。Human civilization is like a cycle, it will die out after a very long time, and then reappear again. 。The downfall of every...ly!Fang Yu frowned and turned away.At that moment, he saw a multitude of creatures with black hair as sharp as thorns rising from the depths of the sea."Whoosh!"One shadow detached itself from the sea...