I Am the Protagonist, Killing All the Worlds

My name is Lin Shi, an ordinary young man. I have a childhood sweetheart and today is our first date. Then she pulled out a pistol. The sky cracked. Mutations fell from the sky, and everything they touched was devoured. When I opened my eyes again, I was already in a strange world - a huge hourglass hung in the sky, and a cold mechanical voice sounded in my head: "The player logged in successfully." A thousand "protagonists" were thrown into this arena built by disaster. The red dots on the map went out one by one, and the number of people continued to drop from 1,000. There is only one rule: only one person can get out alive. And I have never even killed a chicken. Transformation gave me power, but it also made me hear the wails of countless dead people. From the first fight in the supermarket, to the life-and-death struggle with bug-men, to facing increasingly powerful opponents... I'm just an ordinary person. But since I was chosen to be the protagonist—— Then kill through this world and find a way to survive!