Sorry for the delay.
I thought it was unity slop, but it's actually some completely different engine, neat.
The whole 3d free movement format is way too bloated, especially if you are just prototyping the game mechanics. This would work much better as a VN-like with less friction. Unless you are going for specific sort of interactivity that would give you an edge, it seems detrimental on all fronts except for some potential immersion (that would require massive amount of polish anyway).
I didn't get in depth with the game and I'm not familiar with the genre, so I could only judge some technicalities, and all problems stem from being to navigate in 3d and being in early development stage so it might be useless. Having several text boxes and a loading screen before entering each rooms sucks especially since there are a lot of rooms to visit. Camera controls are too sensitive. Exiting the swimming pool brings you to gambling room's entrance.
Sounds like the character roster is critical for the game, so it would be good build up the familiarity and parade the characters on screen as often as possible, maybe even use them for the tutorial. Due to that it feels weird that hanging out would cost energy, but let's see how it plays out when it's implemented.