The Doomsday Defense Line

That night, the disaster brought by a meteor shower ushered in a new era for humanity. Tens of millions died, and hundreds of millions were displaced... Our home, Earth, was left battered and broken. And that was not the end of it: the emergence of terrifying Nether Spirits made humanity's plight even worse. Fortunately, humanity did not give in to despair. A martial arts craze swept the globe, supertechnology weapons were developed, Tianhe mechs were built, mutants appeared, and the legacy of the Chosen was passed down... At last, humanity gained the ability to fight the Nether Spirits. Within the giant walls, can humanity withstand the Nether Spirits' attacks? In the face of adversity, can humanity win its war against them? In this apocalypse, will the final glimmer of dawn shine upon the land once more? This book will take you into an entirely new world...