I didn't even know there was a tag for that on Itch. Is there one?
The game is going to lean into NTS direction as the main characters discover their kinks (as I mentioned in my posts). That said, a harem route will be available later in the game, though it will still have elements of NTS/cuck or cuckqueen content, depending on the choices you make.
As I understand it, NTR is more about cheating? If so, that won't be a thing between the main characters.
Vanilla is obviously out of the question, even at this early stage. 😅
I suggest you give it a go and tell me if you think there's potential.