After millennia upon millennia, the era of humanity has undergone countless rises, falls, and transformations. However, in all of history, there has never been a transformation marked by such extreme peaks of prosperity and depths of decline.
In the year 3487 AD, humanity, possessing super-technological capabilities beyond the imagination of people today, spread across the entire galaxy. With their robust vitality and unparalleled colonial ambition, humans expanded their territory to an unprecedented scale—a vast domain spanning 60,000 light-years in diameter.
Yet, humanity's insatiable expansionist ambitions ultimately enraged other races in the galaxy. Thus, a racial war with a ratio of one to hundreds of billions erupted on February 15th, 3487 AD.
Despite humanity's rapidly advancing technology and accounting for a quarter of the intelligent life in the entire galaxy, after a 3,000-year-long galactic war, they finally succumbed to the combined might of all intelligent life in the galaxy. Having lost 99.99% of their population and teetering on the brink of extinction, the remaining nearly ten billion humans gathered in their home planet system—the Solar System.
Deprived of all their starfleet weaponry, with billions of alien races extending their formidable military power to the doorstep of humanity's homeland, intent on wiping out all humans in one fell swoop, the Grand Chief of the Human Interstellar Alliance made a decision he should never have made.
He pressed a button that should have remained forever unpressed—the detonation of the "Artificial Spatial Wormhole Bomb," crafted by hollowing out Pluto, creating a sun-sized black hole with a lifespan of only one second.
In an instant, it annihilated the alien alliance warships, numbering in the trillions, that had amassed outside the Solar System.
But the cost was staggering: 9.5 billion of the last remaining ten billion humans perished, Earth was rendered unrecognizable, and a high-energy electromagnetic storm swept across the entire galaxy.
This cataclysmic disaster, with destructive effects lasting for eons, rendered all electronic devices across every corner of the galaxy useless. In a single second, galactic civilization regressed by millions of years, and the once bustling cosmic expanse fell into profound silence.
Each planet became an isolated entity, developing its own culture, waiting for the day when it could once again soar through the universe.
The surviving humans dubbed this man-made catastrophe—the "Great Annihilation," a symbol of humanity's loss of everything.
And this is the story of a human known as the "Demon God," set in an era filled with heroes, demons, spirits, and subhumans, after humanity's fall from grandeur.