1. Xianxia (miniature prehistoric, not serious prehistoric, privately set up like a mountain) + apocalypse (fake apocalypse, created by the male protagonist) + sentinel guide (also fake, probably the origin of the sentinel guide?) 2. Contains a lot of high school knowledge that I don't remember very much. 3. The content tag is wrong = = can't find a suitable one 4. The main text is finished, not sure if there are extra chapters 5. The cover needs to be changed