We took a close look at all the tags before adding them.
And we still don't see any problem with their simultaneous presence in the long run.
To begin with, the relationships in our game will be both vanilla and more aggressive.
And they are planned to appear both on the part of the protagonist and in his direction.
Therefore:
Harem - 1 person being courted by at least 3 others, all engaging in consensual sex simultaneously.
So, in the meantime, what prevents the hero from having non-consensual sex with the 4th if that girl deserves it? Hmm... I think, nothing.
The prostitution tag has a question mark, but if we do decide to add it, what prevents the protagonist from offering himself for money to another girl?
As a result, I don't see the problem, and therefore the NTR/Sharing tag is unnecessary, since none of the girls cheat on the protagonist.
NTR shall not pass, comrads!