yeah also gonna just dump a shovel onto this fire about the sandbox myself.
A) why does the menu block every interface interactable? TERRIBLE by design
B) why does the menu also block the left and right arrows? They're positioned awfully, and do we really need 4 angles for a room?

C) why even have the sandbox at all? I dont see a purpose whatsoever, so many games want to bring the marvel of sandbox but it just ends up turning into a 1990's point and click adventure game, but instead just interact with A->B->C
It sequence breaks so many games, it causes coding errors, I understand it breaks the monotony of a "kinetic" novel but real talk, choices matter would go way further than sandbox. I wish more AVN's would move AWAY from Sandbox because it genuinely takes great games down to "okay" and takes "okay" games down to bad. I have yet to really play a sandbox game that really blew my mind where I was like "yeah wow that was excellent" (Outside Heads will Roll but that was a small-scale indie project) Only RPGM games tend to do well in that department. Not to say that there isn't decent sandbox games or anything but even ones with a fully worked out system still tend to end up monotonous and grindy to try to inflate game time loops.
I am saying this from a place of care, not "grr im angry" I think you have something cool brewing here, but I would just ditch the sandbox. I just cant foresee what would call for it other than walking through the villa and going from talking dialogue to talking dialogue, there isn't any planned tags with like combat, or simulator, etc. Only real feasible one would be the "sleep sex" where you can go and walk through the night and click on a sleeping girl and do whatever, but you could also accomplish the same with choices matter, just not constantly repeatable but instead a 1-2 off.