Ye Ze, an ordinary company employee accidentally traveled to a world thousands of years later, where civilization was broken and there were no traces of technology. There were only primitive tribes of various sizes, primitive forests, strange oceans, bottomless abyss and unknown beasts. The tribes were fighting endlessly. It was another epic prehistoric era. Is Ye Ze's arrival a guest from outside the world or a fateful choice! (This is not the prehistoric period of ancient mythology, but the prehistoric period of tens of thousands of years after the earth experienced a catastrophic civilization fault)
