There's a Place Called Little House

After dying, the protagonist finds himself in a desolate land, yet he can still return to Earth. From then on, he travels between the two places, using his special ability to transport all kinds of supplies. He builds himself a house in the wasteland and adopts many others who have also died on Earth, living the life he always dreamed of. He thinks this is a parallel world, but the god of this land tells him that it is Earth in the future, on the brink of destruction…