I played for like 30 minutes before I realized I had to actually ASSIGN Nerissa to a room lmao. I thought I was just bugged or something that the room was always empty even as I kept upgrading her.
I thought the game to get different currencies was interesting, although I never quite understood the way the grems worked fully. Worst case was when they accidentally destroyed the green pieces I was farming to rank up a girl. Led to me sometimes not using them because there were two greens on board and I didn't want to lose one while I tried to get a third