The main difference between Erzhoumu in the Waste Library and Zhou Mu lies in the improvement of plot and difficulty. In Erzhou Animal Husbandry, players need to face more powerful enemies and more complicated tasks, and at the same time, they need to solve some problems that cannot be solved in Zhou Mu. In addition, in the second week, there will be some new storylines and characters, which will make the game richer and more challenging. In addition, some new games and systems have been introduced to the tombs around the ruins library.