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A thousand years ago, after the devastation of World War III, the world lay in ruins. Nuclear fire had scorched the lands, poisoned the seas, and twisted life itself. Animals mutated into monstrous forms—creatures of hunger and destruction, driven by instinct alone. Humanity teetered on the edge of extinction, powerless against these new apex predators.
Amid the chaos, scientists worked tirelessly, experimenting with ways to push human limits. Through their efforts, humans discovered the ability to transcend their natural physical strength, unlocking powers beyond imagination. With these newfound abilities, humanity fought back. Yet, no matter how powerful the warriors became, it was never enough to eradicate the monsters completely.
Civilization did not falter. As humanity endured, they advanced further, merging science and spirit. Mecha technology was born—a marvel of engineering that allowed humans, and even AI, to battle monsters on an unprecedented scale. Armed with overpowered Mechas, humanity finally pushed the monsters to the brink of annihilation.
But victory was incomplete. The nuclear missiles that had once ravaged the Earth had done more than destroy; they weakened an ancient barrier, one that had protected the world from beings of unimaginable power. With that barrier shattered, the world's safety was only an illusion.
A hundred years passed. The Earth, now seemingly peaceful, had begun to rebuild. But then, in the vast expanse of the sea, a colossal crack opened in the sky. From this rift poured monsters—beings so powerful that the terrifying creatures of old were now nothing but ants in comparison.
Chaos returned. Cities and nations fell under the rampage of these monsters. Even the mightiest Mechas, humanity's ultimate weapons, struggled to hold them back. And with the monsters came spiritual energy—raw, potent power that awakened within select humans. Those who mastered it stood against the creatures, fighting not only with steel but with spirit.
Through tireless cultivation, humans learned to harness this power and ascend to higher realms. Yet their scientific progress did not halt; Mecha technology continued to evolve, producing machines capable of fighting even opponents in the Core Birth realm—a level of power once thought unattainable.
In this turbulent world, Kaelen Morcroft awoke. He had been reborn, carrying the memories of his previous life.
"This… this is the world I have returned to," he murmured.
But reality was harsh. "I'm just a poor, parentless child. Cultivation requires resources I don't have, and I can barely survive. According to this body's memories, I'm a college student studying engineering, focusing on Mecha development. And I still have classes… I need sleep."
As he settled into bed, a sudden, chilling voice pierced the quiet:
"Host detected."
A shiver ran down Kaelen's spine. This world was not only alive—it had noticed him.
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