The manga's description stops being true by the end of the first chapter. The guy receives a plethora of god-tier tools and a bottomless bag of holding. So rather than a survival story, this is about base building. More of the Minecraft-esque type rather than practical. Still, I recommend it because all the characters are likeable so far and at least in the first couple of dozen chapters it's sure to have that comfy and satisfying homestead improvement feel. Judging by the name and the events so far, the long-term story will be about the hero aiding in the recovery of the war-blasted wasteland so the spirits and potentially people can return to it in the future.