Clearly Elspeth knows the MC is sleeping with both her and Vi. While not enthusiastic, she hasn't set out any ultimatums. Also, some of the other girls are clearly aware of the MC's relationships with each other (Amrit, Vi, Kana, etc.). While I agree that it is unsustainable, it feels like there will at least be some "you gotta choose" warnings before things come off the rails.There definitely will be consequences in the sense that the LIs will soon figure out that you are sleeping with each of them. You can only do Throuple paths with no consequences. Otherwise, I'm sure it wont work out well with them.