We are waiting for a script from you about how the plot should go correctly, we are ready to offer a job if it is not adding a sex scene with any of the main characters for 10 minutes of the game
Plot is different than flow and spacing tho. But not here to give none of those, but give few suggestion to nice game that has Luna as waifu. Minerva update you said you have planned is really good.
Then to meat of this post.
-Making some if not all side guests to be handled over multiple chapters as they mostly have no connection to main story events (looking at you act 1 chapter 3). But this might cause problems your chapter system?
-There should be no limit to when training is done, who cares it it evening, it feels arbitary limit that consumes timeslots from story events making game slower to play
-Same with working even if it was limited to only once per day, there should not be limit when you work even weekends. It would not break the game balance would it? Horny bastage would work even on weekends to get monay to get inda womans pants sooner.
-When moving around there is no need for some areas to have no direct access to world map as it has been already proven in game that map access can be blocked when it is needed. As example from bedroom to world map without having to go trough office area.
-Postal system also is pain to deal with when you mostly want Minerva and Snape at evening but they are being offered official meeting at first maybe add option to split to postmarks to halves for both and option to remove sending confirmation.
-As mentioned previously adding to weekday indicator to hud. Maybe even adding current days timeorbs too to see who will come and when instantly there is room for at top of screen that could also double as time skipper?
-Fireplace should be on until put out, no need for it to go out every day, there are House-Elfs who will keep it up.
-Making doors visitor indicator more vibrant?
-when selecting table there is no need for menu to be so small not to show all at same time making is less click intensive to use
Ultimately saving players time with quality of life things. But you need to remember save your own time also by cutting some fluff and think is it really needed or is there more simple alternative. Like your menu in menu could be just bigger menu. Or like do you need to make whole screen wide art for utility tool when it can be just part of hud with marginal ammount of art needed?