what if 1 or 2 of the scenes are with non li's? , Dalia and Annie are like a 80% to 90% guarantee and if Calypso is the third scene , the non li character for the 4th scene could it be "the Eternum Lady".
if Calypso is not on any scene we could be looking for a second non li character Maybe?
i don't believe a threesome will happen but it'll be heavily tease (like Nancy founding out that Mc is shagging all of them!)
I think introducing non-LIs at the start of the game makes sense because you want to give sexy content to your audience and you don't want to rush the develop the LIs in the game. This is why we got Eva and Maat in the early chapters.
But I think after the LIs groundwork has been laid, pivoting from them to a non-LI will just waste time that could be spent elsewhere. No one will want to see a scene between MC and some random girl he just met - they will want a scene with a LI in its place.
if Carib does do that, I think a lot of people will just be disappointed.
I can see Idriel being chosen - although she is not technically a LI (like Calypso), she has been established as an important character with ties to the MC in some regard from the start.
