Everyone Lives in Shelters, but You Build a Villa in the Last Days?

Two billion people are forced to descend into an apocalyptic world where everyone builds shelters. There are many supernatural beings and ghosts are rampant. There are only three days left for people to reinforce their shelters. Who would have thought that the small silver sword that exploded in the novice gift pack was actually the body of Solanum nigrum in the fairy sword. Lin Yan relied on Little Nightshade and accidentally became the first person to kill monsters. Relying on the system that can generate adverbs, the shelter has the strongest city walls, the most powerful offensive and defensive weapons, and the most worry-free thousands of acres of fertile land... Just live on as promised? Everyone is struggling to survive, but Lin Yan is relying on plug-ins to build a villa, which is more comfortable than a vacation!