Restarting Civilization on the Ruins of the Last Days

(Doomsday, farming, hoarding, survival, strategy, a little violence, no system, no harem) Ten years ago, a virus took away 99% of the world's animals, including humans. There were very few people who survived, too few to maintain order and civilization in society. In order to survive, some survivors rely on scavenging, some rely on farming, and some people who have lost their humanity have set their sights on their own kind. They hunt other survivors everywhere, rob their supplies, and eat their bodies... A small man who relied on farming and scavenging spent ten years building a shelter in a mountain stream. While scavenging, he rescued batch after batch of survivors from cannibals. As a large number of survivors joined in, he began a legendary life... [The protagonist has no superpowers or cheats, and relies solely on his strength to reach the top step by step; in the apocalypse where the protagonist lives, there are no zombies or monsters, only people who have lost their humanity in order to survive. The most terrifying thing in the apocalypse is not the zombie monsters, but the human heart]