I must say, contrary to the negative reception in this thread, I had a blast with this game even in its unfinished stage. Perhaps the difference in experience and attitude can simply be traced back to the fact that I have not been following this game for any length of time but rather found it only recently, thus experiencing it without any past baggage. Whatever it may be, my experience has been positive at the end of the day.
Great and varied animations/sprites and CG scenes, along with an excellent design for the female MC and overall "strong" writing, are what stood out to me.
Now, let's not beat around the bush. I, of course, came here for the NTR and expected it to be the main focus. Furthermore, I am someone who is very much into the more extreme and harsh side of NTR, so my positive experience with this game may surprise some. That is because the game itself is really neither cruel, harsh, nor even all that dark over its whole (incomplete) runtime, and it does not try to be either. Yet, it still managed to capture the true essence of NTR (Brother-Sister NTR to be more specific) in my opinion. The "main" and most fleshed out route of the game is NTR, not Netori, nor Netorase, but real NTR. The brother, who loves his sister (as more than just a sibling), is not only "cheated" on without his knowledge but is also teased and lowkey bullied (softly) by his rival and sister behind his back. The sister's development is a slow burn when it comes to how she acts around her brother, as she is getting slowly and surely more and more cold towards him and starts to neglect him of her own choice and by the commands of the main bully. Her love is visibly fading, and I expect her to voice her new lack of love and affection for her brother out loud towards him on the next big update (whenever that will be).
I could talk about the gameplay itself, but I honestly don't care much about it, and I suspect most other people do not either. I am just here for that sweet, sweet NTR.