In the future, in the year 3605, technology is extraordinarily advanced.
Qin Feng is an ordinary citizen living in the Federation Empire. To survive, he has to work illegally at an underground repair shop. Under the tutelage of Uncle Guang, a top-tier mecha mechanic, Qin Feng's mecha repair skills steadily improve.
Unexpectedly, he is caught up in a riot by the Original Citizens, sparked by an increase in the exchange rate of Federation credits, and sentenced to mine on a mineral planet. There, Qin Feng meets Yang Jing, the daughter of the Yang family, the foremost of the four great families in the Federation Empire's capital. The two struggle to survive on the mineral planet and eventually escape.
As Qin Feng broadens his horizons and events unfold by chance, he discovers the great secret of this world.
Humanity was once united under a single great empire. But as technology advanced, humanity encountered the Zerg and the Mechanical race. After a great war, disagreements over their ideals led to the empire's division into the Federation Empire and the Tansa Alliance Empire.
Years later, although the Zerg and the Mechanical race had been driven out of the star systems ruled by humanity, they had not given up. Everything pointed to the possibility that they might join forces and return. A new catastrophe was brewing.
