Came expecting pure love (my favorite tag) romance, but it seems it have Ntr(s) so its a big no for me
They've actually tried really, really hard to make the non-NTR choices unironically be this, but because the characters are written for NTR a huge percentage of the interactions just don't make much sense.
You can quite easily avoid NTR. Basically you have three routes, romance, sharing, netorare. Each is pretty easily disntiguishable.
The problem is that all the characters are fully written like NTR characters and most people looking for a more classic romance story are going to hate it. The romance character arc still contains so much of the set up for NTR path that it's unplayable for anyone that isn't into NTR and just wants a different path for a change. I check in occasionally to see if the whole section where he basically gives away his balls at the start off the hell arc has been re-written, but no luck so far.
To be clear I also don't really think it's reasonable to expect that of the author/developer. It would end with them basically having to dev/support two entirely different games at the same time. This is a terrible choice and in every way they'd be better off completely getting rid of the non-NTR arc and just making a different game like that later if that's something they want to do. It's basically impossible to fix without re-writing literally almost all the content after they go to hell.
I just really like the artwork and wish they would make the necessary terrible financial decisions to re-write the game that way.