Indeed, I noticed the part that mentionned everything that was to come eventually in the finale version of the guide! Amazing to see how much you guys are motivated!
Regarding hidden conversations, I think I didn't find any for now...except perhaps the one with Suhera dozzing off by the pond.
Also I think I found out all the possible iterations of the chest scene (with the True Zenith symbol on a corpse inside)
Also, there is a last minute suggestion I'd have: you should make it easier to befriend the other attendants. Here's a few ideas I have about it.
-Possibility of group events that allow to improve relationship with more than one attendant (like a group meal with the "Feast for the Craftsy" duty if two attendants or more have reached lvl 3 affection, for instance)
-Make all the dishes grant a minor improvement (+) in relationship, and a major one (++) when treating them their favourite.
-Increase the relationship's improvement during a attendant-related duty (like when they ask MC to hang out or take duties with them). I think having only a + is not really rewarding enough.
On a different note, there is one last suggestion I have. Perhaps you'd want to change one thing about the lvl 1 affection of the regals. Because problem is that it keeps stating "I doubt X even knows who I am" even though I completed a duty when said Regal stated that they would remember my name (I take the exemple of Peria when MC suggest some books in the library). It's not that it doesn't make sense, just that I was disappointed the first time I noticed that.
Also, I'd love it if the Lazarin servant MC meets at the entrance of the Institution got himself his own model instead of just a frame. I mean, I want to see his face!
Aaaaand... That's all from me, until next time !