Global Class Change: I'm Backed by an Entire World

Humanity teeters on the brink of extinction when he transmigrates into a world where everyone awakens a combat class. His luck? The weakest hidden class in existence. But here's the twist—he's secretly backed by an entire parallel world's resources, power, and potential. Watch as he shatters every expectation and redefines what it means to be 'weak' in this survival game where strength is everything.