If you are looking for specific "paper" within the game or a guide for it:
: The "Ch.4 Beta" signifies that this was a pre-release version of the fourth chapter, often used for bug testing and feedback from supporters before the final public release. The Changing Season [Ch.4 Beta]
In the context of Chapter 4 Beta of this game, players often look for "papers" or guides regarding the and branching paths that define the story's progression. If you are looking for specific "paper" within