Zerg Scourge? I Open a Supermarket and Kill People Randomly

In the post-apocalyptic wasteland, Lingshan is resurrected, there is a natural disaster from the Zerg tribe, and powerful enemies are waiting around. The Dragon Kingdom is in danger! Others awakened S-level powers, but I, Lin Xiaochuan, only picked up a broken supermarket system? Selling [Aura Chives] and [Five Elements Escape Slippers]? Can this thing fight Zerg? ! When the hostile forces and the insect swarm came to the city and everyone fell into despair, I took out the goods I had just drawn: "Canned herrings, invisible chewing gum, Martial God Realm experience card... There are new ones today, and the Zerg have to stay still!" Let's see how I, a supermarket owner, can become the biggest savior in this apocalyptic world by selling goods (with the side effect of breaking my waist)!