Hi TheOn3, to answer your questions:
1) This is chapter 1
Mega
This is chapter 2
Mega
This is chapter 3
Mega
I'd advise you, personally, to just wait a little more before starting the first chapter. Kuggazer is working on a remake of it, and it's looking great! If you have a little patience, you'd get a brand new version of chapter1.
2) NTR is always completely optional, if it's not your cup of tea, then you will always have the choice to take another direction.
There are just a few NTR scenes in this game, and the player has the complete freedome whether to take that route or not. If you don't like such content, no problem, you'll be always able to avoid it.