Yeah I am probably making a mistake by posting on this thread but whatever. I don't know how nuanced they are with tags but it seems like her story is going to involve getting her out of that life, so considering her and the MC aren't in a relationship at the moment, does it count as sharing if she at least stops being a prostitute before a relationship starts between her and the MC? A genuine question.
With the vanilla tag I imagine there wouldn't be any NTR of any kind. Prostitution should be added at least.
Either way, while she does see to be an obvious main LI (hintedat at the beginning), she is optional so if she stays a prostitute in .4, easy enough to stop pursuing. For me. A former prostitute can be tolerable if done right... maybe.