Wow my opinion is opposite, to point that this game triggers me. Game leads you to belive that you are playing as heroine just to discover that when you win in that card game she is losing and you are like wtf? Then it strieks you that you are playing this as that shitty perv antagonist lol.Absolutely great game. Love the whole setting and the story.
You are right. I really would not put this into NTR territory. It's not like he is saying "oh shit my wife/girlfriend/love interest is getting fucked by other men while I have to watch" it's more along the line of "I have this girl that I can manipulate into getting naked in public and getting fucked by other people against her will". It really is way more corruption than NTR.
There is one (with different variations) ending where the protag fucks her. The "good" ending.
Edit:
There is a 1.68 gb version in the request thread (keyfile for uncensoring can also be found there). Need to check what is different between the two mega links.