The Glimmer of the Apocalypse, the Remaining Warmth of the Barrier

The soul-eating virus swept across the world. Within three months, civilization collapsed, cities became ruins rampant with bloodthirsty aberrations, and the remaining humans lingered in the shadows. Lin Yan, a former mechanical engineer, used steel plates and gears to build his own steel barrier among the ruins. He was cold and precise, just to survive in the apocalypse. Until one time when he went out to search for supplies, he ran into Shen Ci, a doctor who was besieged by aberrations and was on the verge of despair. "The infected person on the left side has a big flaw! Attack the head!" In one sentence, two people who had nothing to do with each other were bound to each other. He used mechanically modified weapons to cut the blood path, and he used scalpels to sew up wounds and hope; he built copper and iron walls just to protect him, and he was gentle and delicate, melting his frozen heart. Among the ruins, supplies are scarce, deformed people are everywhere, and people's hearts are unpredictable. They not only have to fight against the cruelty of the outside world, but also face their inner struggles. Under the steel barrier, a trace of residual warmth quietly grows. Is it mutual salvation in troubled times, or a short-term comfort in a desperate situation? When more and more survivors appear, and when greater crises come, can this line of defense built with trust and bonds be able to withstand the storm of the end of the world? "Hardcore apocalyptic survival × mechanical engineer × doctor" "Double male protagonist × non-double cleanliness" "Sadism and sweetness × leaving the ending blank" (No rebirth, no routines, no time travel, no bloodshed, no system)