Uhhhh, NTR represents the NTR fetish...
Just that it can be broken down further, into those that prefer cheating, those that prefer it to be rape, and those that prefer MC to be into it, which even has it's own dedicated tag being Netorase.
All NTR is where the LI is stolen from MC though.. like it is in the name Netorare meaning "To be taken from." (the three types so to speak, typically being noted as A,B,C referring to the method, A being cheating, B being rape, and C being rape that leads to cheating).
Common misconception is thinking it stands for more than Netorare, which it doesn't. (Netorase is a sub-genre though, which is part of the cause for confusion).
Netori ("To take") is off being its own thing just like Reverse-NTR is. (reverse being where MC is the one being stolen, usually only used for male protags though).
Sharing while you can technically classify it in a way as coming under that meaning "To be taken from." isn't under NTR and is it's own thing. (although to people who dislike and/or hate NTR there is usually no difference, cause it comes from a similar place).
So for whether it has or doesn't have, a simply yes or no would suffice, and for those that don't instantly ignore the thread with that tag, whether or not it is avoidable.
As for Netori... well that isn't NTR sooo no issue there. although to tag it, you use the cheating tag.
Dr. Phoenix Games While on the topic, I highly HIGHLY recommend you make a choice now whether or not you will include this controversial genre (NTR), since you will save yourself a lot of trouble and thread clutter, and angry people (from either side).
Since some will want to ignore you game now if you do include it (avoidable or not).
If you plan to include harem, then I highly suggest you don't include NTR at all, since it is a conflicting genre and just doesn't mesh well (and even if optional it taints the characters that it can happen with just but it being an option, e.g. a loyal character can't be seen as loyal if there is a route where they cheat on MC, cause well that ain't loyal).
Anyway, make the game you want, and only allow for polling on genres you don't mind doing or adding. (you don't want to make content you hate, or content your main audience will hate, because of a few)
P.s. apply for dev tag by asking mod or making a ticket.
