Starting from the Skeleton World

No CP + Time Travel + Worker Advancement Record Accidentally came to the world of skeletons. After Soda collapsed, he worked hard to survive and finally found a place here. The census of the underworld that happens once every few thousand years is coming. In order not to be discovered that she is alive, she can only find another way to climb up. If she doesn't succeed, she will become a ghost. Purely manual coding, no AI