Looks interesting. Some questions before I try:
1. ntr avoidable?
2. any walkthrough/mod for chapter 1 or is none necessary?
1)Yup
2)There is no mod, and most likely there will not be. You can just check the walkthrough page yourself.
P.S.
The mod would certainly be better, but I don't think there will be a person who will make it for such a project. The developer is very fond of making the game in parts, as I understand it.
And yes, a very important fact, so be prepared. The game is a little with bugs.I got it twice, and the last time I got a plot bug I couldn't continue the game (well, technically I could, I just don't like the fact that the game thought I chose the NTR path with one girl).I wrote the developer personally, but he didn’t even go to the site yet.
These bugs are most likely solved by interfering with the game code, but I don't know how to do it.
Thus, I solved only one (first) bug that I had, looked in the comments, someone caught the same and left the solution to this issue in a message.
But I was out of luck with the second bug. Only one dude had the same bug, and there was no solution at all.
In short, up to 3 parts you can play almost "calmly" and without worrying too much. Or maybe you're lucky and you won't catch any bugs at all.
Good luck to you dude.