I think "optional NTR" means that it might be optional! someone correct me on that though, but regardless, people should make sure to start crying about there being avoidable NTR in the game and call it the end of days, just in case.
That aside, ran into a ton of bugs again and honestly I hope that they will get fixed with the new engine as the game feels laggy and annoying at times. The english translation is also pretty crazy, so that would be a nice change.
What bugs have you run into? Also when you say laggy, just want to check what hardware you are on.
Anyways you don't have to hope,
1. Its done from scratch, there are no bugs like these, or anything new that I have detected (so far), I do extensive testing every time, We will also do a final QA check for a week at least before next release, and performance testing on various machines.
2. English translation, I will take a look at this as well as I migrate all the content, I will do a wave one when I get the content over, then double and tripple-check. I will work on some content migration today most likely as well.