A heaven-measuring ruler that had just opened its spiritual wisdom was transformed into the ancient world. Before it could react, Yuanshi Tianzun picked it up and took it back to Yuxu Palace. "Be my disciple." I was stunned and nodded quickly. After a thousand years of hard training, he went from being ignorant of iron tools to becoming a golden immortal. Just after leaving the customs, the system was belatedly arrived - the prehistoric law enforcement system was online. I rubbed my hands: It's my turn to take care of this terrible wasteland.