Are you saying it does not count because your sexual relationship with Wanda will be that of a sex slave? and that MC does not love her, so it does not count?
I would like to point out that earlier you said that she "has nothing to do with the main character".
If she is your sex slave, she is involved with you
It isn't [True Love] involvement, but it is involvement.
Some of the things I talked about earlier need to be seen in the context of what was being talked about. I was talking about the fact that at the moment you are given the scene with Wanda, she is neither your girlfriend nor the object of your romantic interest, she is a nobody to you in every sense, so it's weird to look out in that Ntr.
I have said this, and I say it now, as a developer in the present, and a player in the past who is very familiar with the Ntr genre.
Just because in the future, we will have content on Wanda, doesn't make 1 scene with her and another guy Ntr content. To make it Ntr content, the story context is important, where the protagonist enjoys seeing Wanda getting fucked by another guy.
I'll say it again, no matter how tired I get of this topic, no matter what I say, no matter what arguments I make, to outright Ntr content haters, anything that isn't bouncing on the main character's dick is ntr. I can't change that, it's purely your problem, I see it differently, and I'll do it the way I see fit.