Renting a House at the End of the World: the System Makes Me a Renter

This is a rental system, and Yan Wanwan started living on rent with a look of confusion. As a doomsday castle with eighteen floors underground, it has everything you need. However, Yan Wanwan said that she found a lot of strange things. Why do gold coins appear when zombies are killed? Why does the entire contact chip have a page directly? Why do stars still exist? Now it seems that the most understandable thing is to have superpowers! It's simply a doomsday standard. (The author who lives entirely by imagination... Abba Abba, no cp.)