I'll draw references of the house someday since it's kinda complicated but uhhhh

Well, have you seen those underwater caves where the entrance goes kinda upwards but the water doesn't flow in because there's air trapped in the caves so you can walk around them despite being technically below the water's level? Well, it's something like that; Her entrances are underwater rooms that also lead to the surface inside the house (where almost all floors are like pools with narrow spaces and bridges for people to walk through), but there's also a front door for other people to go inside without having to enter underwater