In the post-apocalyptic wasteland era, the awakened Lin Yuan accidentally discovered the symbiosis system left behind by the Titan civilization in his body, and activated the Titan genes by swallowing mutant energy. On the surface, he is a wanderer who was expelled from the shelter, but secretly he can control the nano-scale Titan mecha and ultra-limited nuclear energy. From dissecting mutated pythons to building mobile fortresses, from fighting against natural disasters of flesh and blood to fighting against the Iron Empire, in the final battle between humans and machines, he wants to let the decaying world see the dawn of the divine Titan again.
