Prehistoric: Bind the Invincible Field at the Beginning

Taiga's whimpers penetrated into the seams of bones, and Xuan Mu stepped on the humus soil and was stunned for a long time. As soon as I left the convenience store, I was bumped into the ancient dungeon. I had no spiritual roots, no powers, and not even a knife. In the desperate situation, mechanical sounds exploded in his mind, and the invincible system was activated, sending an absolute field with a radius of ten meters. The conditions for upgrading were simple and crude. It was expanded once every hundred years. He found a stone and sat down to wait. At the foot of Kunlun Mountain, three newly transformed human youths pushed aside the bushes and ran towards the top of the mountain, saluting respectfully and calling their seniors. Xuan Mu stood up and clasped his hands behind his back, the corners of his mouth slowly raised. Even if you come here, you have to pretend to be like that.