Well, I hope you keep your word that you won't add content that contradicts the essence of the game, because if you're creating a harem/vanilla game, you should know that harem and NTR shouldn't be mixed, they're like oil and water. If you add NTR, even if it's optional, it will ruin the experience for many, since knowing that a character has that kind of content ruins your perspective on them. I'll trust your word and play peacefully, knowing that this game will be NTR-free because NTR doesn't fit in a harem game