Okay.. I'll reply to this... once. Here's the definition of NTR as stated by F95zone:
- NTR [Designed to cause jealousy by having the romantic interest involved with someone other than the MC.]
If you played the game (which you stated you have no intention of doing) you would know that this is the most anti-jealousy setting you'll ever find. You'll also notice that there is no harem tag. That's for a reason.. the girls don't "belong" to the MC. Many are happily married with families. How much of this you hear or see about depends on if you choose the sharing or non-sharing path, but neither of them are written with a single iota of jealousy.
And that's all I have to say about that. You are free to disagree, but by the definition of NTR defined by this site, none exists in the game.