The End of the World Strong Training System

Suddenly awakened, Chen Tiansheng found that he was reborn and returned to ten years ago, there are still 12 hours before the apocalyptic eruption! !

The system hit Chen Tiansheng’s head.

There is the strongest, most caring, and considerate system in history.

Kill zombies to exchange attributes, skills, weapons, super powers, and black technology.

Only unexpected, there is no system that cannot be exchanged.

The cow-gatherers are younger brothers and younger sisters, and live a wonderful life in the last days!