C201 There's Something Behind Him

Xu Zhitian walked alone on the mountain path, probably because of the plague. Xu Zhitian's physical strength did not decrease much, but he felt extremely tired. His legs felt like they were filled with lead. He was fine just now. But now it's very difficult to take a step forward. Unknowingly, on Xu Zhitian's forehead... It was already beaded with sweat.

"Lord System..