It's really a fucking mess when people just use the term NTR but don't specify which one of them.
Netori > You steal someone else's partner.
Netorare > A partner is stolen from you.
Right, but this site doesn't have those tags. If we go by
this tag list then we can see that the tags used here are.
Cheating [A significant other having sex with someone other than their partner.]
Ntr [Designed to cause jealousy by having the romantic interest involved with someone other than the MC.]
This game is not supposed to have netorare, it has been stated by Arc before and he knows adding that would cause a major shitstorm
(WHO THE FUCK ADDS NETORARE IN A HAREM GAME?)
Although...
Yes, when you meet Luna you catch her having sex with one of her
so- male subjects.
And the only scene with Chastity is actually you finding an old sex tape of her, again, having sex with someone else other than the MC.
Also there's some choices where you can ask some girls to "use their bodies" to persuade someone else, it's just text and the choice doesn't have any lasting effects.
Are those explicitly designed to cause jealousy? Eh, idk.
There's probably some folks that would flip their shit if every single one of the girls wasn't a virgin before they met the MC.
But to summarize, this game isn't focused in netorare.
Netori on the other hand... Yeah, the MC has a thing for milfs with shitty husbands.
Already caught and will be fixed on the next version.