Doomsday: an Unlimited Material Every Day

When they wake up, everyone has traveled to the apocalyptic world, where zombies and mutant monsters are everywhere, and they may die at any time.
Chen Dong suddenly discovered that he had actually obtained the system and could obtain an unlimited material every day.
【Congratulations for getting unlimited mineral water】
【Congratulations for getting unlimited 9mm bullets】
【Congratulations for getting unlimited cold medicine】
【Congratulations for getting... 】
When everyone was precarious and struggling to survive, Chen Dong had already lived in a luxury villa, drinking red wine and eating barbecue...