Apocalypse, Frenzied Top-Up to Buy Equipment

I woke up to find myself reborn. In just twenty days, the global apocalypse would arrive, and the entire world would merge into a game called 'Biohazard'. All the monsters would appear, from zombies and mutants to devouring beasts. At first, I was just a newbie player, quietly leveling up. But when the apocalypse came, my equipment was far inferior to the top-up players. Even more terrifying, the top-ranked top-up tycoons had become high-level monsters, not only eating people but also fighting for territory with beasts, becoming the most terrifying BOSSes. After barely surviving in the cracks, I was hunted down and killed by a tycoon on the rankings, my death incredibly brutal. After being reborn, I went on a top-up frenzy. Supplies, weapons? I bought them all! I swore I would become the number one top-up tycoon on the rankings!