In a galaxy that collapsed in the whispers of the Old Ones and was ravaged by alien insect waves and mechanical plagues, human civilization was reduced to scattered "remnants of civilization." Xingyao, a young mechanic who bears the "brand of destiny", struggles to survive in the apocalyptic black market in the western wasteland. By chance, the brand in his body resonated with the "Magic Machine Core" from the Castle Technology Laboratory, activating the legendary mecha that can devour and evolve through molecular reconstruction technology - [Star Eater].
From then on, he was forced to be involved in the thousand-year dispute between the Holy See Judgment Mecha and the Void Nomads, facing the roar of the demon battering ram and the curse of the Necromancer. The flow of interstellar refugees, the stares from behind the dimensional cracks, the signs of the apocalypse in the prophet's revelations... Everything points to a truth about the end. When the inter-galactic federation's supernova weapons are ready to launch, Xingyao must control the constantly evolving Star Eaters. Under the siege of fallen angels and vampire mechas, he uncovers the secrets of the "Nether Realm" and determines the fate of all survivors: whether to become new prisoners of time or write the next chapter of civilization.