Introduction: Waking up suddenly, Chen Tiansheng found himself reborn ten years ago, 12 hours before the apocalyptic eruption!! The system fell on Chen Tiansheng's head. It has the strongest, most considerate, and most understanding system in history. Adding body. Longtanshu.com kills zombies to exchange for attributes, skills, weapons, super powers, black technology. Only unexpected, there is no system that cannot be exchanged. Be a bully as a younger brother, a younger sister, and live a wonderful life in the last days!