Hi! It’s not stupid at all! I probably should have added the info when I first uploaded the game, but it slipped my mind. Sorry about that. I will update the main page after I post the reply. Now, to answer your question:
The PDF consists of 66 pages and 3 main sections: lore (codex), pages 2-15, extras (backstory POVs for each RO), pages 16-41, and the guide, pages 42-65. The guide lists the in-game choices/branches (aside from flavor/fluff choices like the character creation options, etc.), including their stats and variables.
Personally, I don’t think the guide is needed to finish the game (and I already listed how to get the endings here, in the comments, and on my Tumblr), but it was requested on Patreon, and I thought I would post it here, too, in case someone would want it as well.
Hope that answers your question, but if something is still unclear, do let me know!