Multiple endings! Nice!
Let's talk about the game! The sound was ok, but then! Did you make a custom song for the jam? That's seriously impressive! I always bump up the score for voice acting, but custom song is even better!
The graphics... I'll be honest, I don't love AI graphics, but the actual gameplay was in a good-old rpg maker style.
As for the gameplay- so far I just got Sophie, Elyse and Mai endings, and it's cool that every story has you doing different things! A bug I found is that Elyse's ending has Mai's background graphics.
As for the theme use- I think you could go harder on the theme. This story could as wall happen on the beach, or a cruise, so it doesn't really play into the "one room" aspect that much.
In the end- it seems like you enjoyed making a plot-heavy game. I enjoyed playing it! Keep up the good work!