When Lu Xi'an arrives in a post-apocalyptic realm, he discovers a mechanical companion—a powerful machine dog with boundless energy that becomes his trusted aide. Months into his survival, he meets Yao Wei, a woman whose potential partnership must wait until he resolves an immediate catastrophe threatening them both. Creatures swarm their refuge with vicious intent; their bites prove lethal, and entanglement means certain death. Lu Xi'an and his extraordinary machine dog must navigate this nightmare together, facing relentless dangers where a single mistake could prove fatal, before he can even consider a future with Yao Wei in this brutal, reincarnated world of endless peril.