Yes, the guide covers every aspect of the game from the very beginning to the most current content, however I'm still working on 0.5.0p which might take me awhile since it's a very big update.
Cult of Lily can be a little daunting to new players since the game has a set amount of months and days you are given to complete the amount of content. Because of that, this guide was made to make it easy to complete all the content within the given time with some breathing room to allow you to freely do everything else you want to in the game.
Other than that, the guide will help you unlock every scene relatively easily and how to best increase your stats, make money and improve your relationship with each girl.