Why don't you warn new players that there'll be NTR, disclaimer or something like that? So, It'd be easy to avoid this game without any drama.
Viewing post in Club Detention v0.084 - Halloween update! comments
There isn't really anything I'd count as NTR yet. Once there is, I'll add the tag.
I mean, as is only one of the girls can even become your girlfriend. In time, all of them will have that option, but alas, it'll take time. Since I'm not really making dirty money off of this, this is just a side hobby for me, so time is precious. Maybe if I get unemployed or Patreon starts printing out money, lol.