They're not labeled NTR, but it's pretty obvious. Right now, there is 1 legit NTR scene at the end of this latest update (but not full penetration, nor does the girl even touch the guy's dick), and 1 light NTR scene where you see a guy feel up one of the LIs (before MC stops him). But the choices to avoid it are obvious (stop the guy, and don't invite Davis over to Ashley's house). I will point out, though, that the last scene is bugged, and even if you don't invite Davis to Ashley's house, you'll get an error message, and it will default to Davis being invited to the house. So, I would avoid playing to the end until that bug is fixed.
Other than that, there are 2 unavoidable scenes where you see two unknown and unnamed women have sex with other guys. It's not NTR, but if you're sensitive to watching any guy other than MC have sex (even with women that are not, and will never be LIs), than that could be a deal breaker for you.