After my life was turned upside down, there was nothing left. The world faded to grey as red skies and flames engulfed the big city in an instant. The screams, pain, and confusion of the people filled the air. I couldn't recall signing up for this. Confusion clouded my mind as I made my way home from work, only to be interrupted by a notification on my phone—an ordinary spam ad for a game called, "World End 000". Then, my vision slowly faded, and I lost consciousness. When I awoke, I found myself in the midst of a catastrophe, a strange noise ringing in my head. [Congratulation! You have won the right to participate in this game!] "Could this be real? Was it a prank? What had happened? I never signed up for this. I just wanted to go back home! Arrghh.."