Apocalypse Rebirth: A Reward System Helps Me Survive the Apocalypse

[Apocalypse] + [Reward System] + [Reborn] + [Stockpiling] + [No Saintly Protagonist] A global zombie outbreak brings the Apocalypse, and 90 percent of the world's population dies. In his previous life, Xie Chen lost his best mentor, while the friend he trusted most eventually led him straight into a tiger's jaws. Reborn before the Apocalypse, he suddenly gains a Reward System. In this life, he will turn the tables against all odds. Those who killed him in his previous life will suffer a fate worse than death at his hands, and those who betrayed him will pay him back a hundredfold.