Rusty Dome Fungi Era

In the third year after a magnetic storm overturned civilization, dark red mutated fungi devoured the surface of the earth, parasitizing spores and turning humans into bloodthirsty "bacteria slaves". The former city was reduced to a mother's nest of terror, and underground tunnels became the last place of survival for survivors.​ Lin Yan, a former mechanical engineer, and his frail sister Lin Xiao, make their home in an abandoned subway, relying on their own transformation skills to make their own survival equipment, struggling to survive in the resource-depleted wasteland. However, a wave of fungi attacks and the safe house is destroyed. The sister is abducted by the ruthless scavenger alliance. They threaten her with her life and sneak into the core of the brood to seize the rare resource "Pure Core" that can purify spores.​ In order to save his sister, Lin Yan embarked on a journey of almost death. On the way, he teamed up with the ruthless former military doctor Su Qing and the clever young guide Atu. They not only had to fight against various forms of fungus slaves and alliances to kill them, but also beware of the deadly traps set by the fungi. As we go deeper into the mother nest, the truth about the magnetic storm and the fungal outbreak gradually emerges - this is not a natural disaster, but a shocking catastrophe caused by a man-made experiment. Behind the net core lies a secret that can subvert the wasteland.​ In a desperate place shrouded in rusty sunshine, trust is a luxury and survival is the only belief. Using mechanical wisdom as his blade and brother-sister love as his shield, Lin Yan struggles to move forward in the game of humanity and survival. He not only wants to regain his loved ones, but also uncovers the truth behind the collapse of civilization and finds a glimmer of hope for the remaining humans.