System: I Open a Supermarket at the End of the World

[Science fiction apocalypse + zombies + system + single female protagonist + unlimited supplies + virtual game (contains copies with trace elements of horror, watch with caution!)] Su Nian, a social animal, woke up and found that he had traveled to a post-apocalyptic world where zombies were rampant, and became the owner of a small shop that had been robbed. Fortunately, the [Apocalyptic Business System] has been activated. As long as you run a supermarket in the zombie apocalypse, you can continuously upgrade your permissions and obtain resources. Purified water, canned beef, daily necessities... Can playing virtual games improve real-life strength? Su Nian's supermarket gradually became a mysterious holy place in the apocalypse. But dangers also come - predators, zombie waves, and survivors with evil intentions come to the door one after another. Fortunately, within the scope of the supermarket, Su Nian is invincible! In this apocalyptic world where order has collapsed, Su Nian has only one goal - to build the strongest apocalyptic business empire and become the "business master" of this apocalyptic world!