The magic industry is highly developed, but the ferocious beasts are becoming increasingly powerful. Most human beings were forced to migrate deep underground to survive. Only hundreds of huge core cities existed on the surface, as well as several giant countries that ruled the planet.
The day that is remembered as the "Crying of Heaven", when the dimensional wall collapsed and the violent alien beasts trampled the entire magical industrial civilization under their feet, did humans begin to care about what was going on in the world.
Wu Tong, a simple young man from the underground city, does not practice magic but is destined to become the most powerful magic weapon master. How can he lead his companions who live and die together to create the most powerful magical machine with autonomous consciousness to save the entire magical era? There is blood, sacrifice, intrigue, and even tears on the battlefield. The tears of heroes and the love between children and daughters will be the cry and hope of the entire post-magic era.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.