In 2142, gray-black entropy mist has shrouded Earth for ten years. This radioactive fog, originating from an alien device, distorts the laws of physics and spawns bloodthirsty mutants, forcing humanity to eke out a wretched existence in twelve steel bases. The Omega device at Base 07, an interstellar portal disguised as the "hope of a new civilization," awaits a crucial "key": Wuxin, a mysterious girl who resonates with the entropy mist because they share the same origin.
A Ya, once the ace of the Qingwu squad, deserted after refusing to sacrifice her teammates. While on the run, she encounters Lao Jin, a former engineer who can analyze the structure of anything. The two come across Uncle Tie, guardian of Wuxin and protector in crystal armor, and Professor Wei, who holds the secrets of the base. Forced together, they form a makeshift team. They venture deep into the mist, battling mutants that turn words into reality and traps of temporal turbulence, while also facing a hunt by the base's higher-ups and alien "Observers." The latter regard humanity as "fuel" for their selection experiment.
From reluctant cooperation to entrusting each other with their lives, the team combines their abilities in entropy deconstruction, spatial teleportation, rigid-body defense, and plant manipulation. They tear through the base's defenses and confront the core of the Omega device. When the portal activates and the ghostly image of an alien fleet appears, they use sacrifice and resonance to lock the device down from within, proving that the resilience of human civilization does not lie in perfection, but in the trust and defiance that endure in the depths of despair.
As the entropy mist begins to clear, new shoots in the ruins and the necklace whose light has faded from Wuxin hold the ultimate answer to civilization's survival: being alive is, in itself, the fiercest retaliation against the experiment.
