The End of the World: I Brush an SSR Every Day in My Safe Zone

The zombie virus breaks out and order collapses. The time traveler Chu Sheng bound to the "Civilized Fire" system in despair. As long as there is one more survivor in the safe zone, he will get a lottery opportunity every day, and the prizes come from the pinnacle of human civilization! "Congratulations to the host, you won a bag of [Lao Yuan's hybrid rice seeds]!" "Congratulations to the host, you won a set of [complete penicillin production line]!" "Congratulations to the host, you have won one of the [SSR-level survivors: Female Soldier Queen Liu Ruyan]!" While other survivor bases were still fighting for a pack of biscuits, everyone in Chu Sheng's town was already eating white rice, using electric lights, and even formed a mecha army! This has become the only pure land in the last days, a holy place in the hearts of countless survivors!