Two Hearts, Three Lungs, Steel Armor: Who's Really Surviving Here?

Everyone else is scraping by with sticks and stones, but you've got two hearts, three lungs, and a body of living steel—and you call yourself 'ordinary'? Sure, it's still a gun, but why does yours have the caliber of a tank cannon? When a walking biological anomaly crashes into a brutal survival world, the real question isn't how to survive—it's who's actually the apex predator.