Ah, I just googled it. I've heard about this.
Although, giving the dimensions and sizes of the girls on the website makes me think this is just a game for people who like teh anime six. Bit weird and unnecessary for them to do that.
Give it a try, my first thought was "wow thats [censored] up". But its actually well done. As for the anime six comment, Hanako's (my favorite path) is around 5 hours, the six scene is near the very end. Thats a hell of a devoted person to go through all that, for a few pictures of her naked. Hell the six scene itself had me raging at Hisao.
Just try it, its free. You may like it, then try some other great VNs. I was aginst it, but since then I have read a few VN's and realy enjoyed them, I actually got bored of games becuase of them.
It does seem a bit morbid.

I may well check it out. I've been intrigued by these "Visual Novels" for a while now.
Oh its not morbid, its just what it does. Lots of people on /v/ complained about how the game killed their six drive for some reason. Common enough that they refered to it as "katawa dike" which is funny as hell becuase katawa means disabled/broken I belive.