TLDR: Short, more flash than substance at this point.
I see NTR in any form I download it and check it out so I admit I may be a harder sell than most after seeing a lot on both extremes.
First of all, I hate when devs use non-standard versioning just to get people to take an extra look at their game. Supposedly V1.0 stands for day 1, Day 2 will be V2.0 and so on to day 7. Why not 0.1, 0.2, and so on until 1.0 when it's actually *gasp* done?
Putting that aside the story is very mid. Not bad, not great. The only route open is the NTS route and it's giving pure cuck vibes. Believe it or not, NTS can exist w/o cucks, size play, or the bull who is so much more talented.
There's no story development beyond pending sex scenes. As for the characters, there's a tease of development but ends up feeling basic. MC is the developing cuck who watches his gf quickly be tempted by his friend. That's her whole role. The friend's gf is the antagonist solicitor you've seen a dozen times by now in other NTR/S stories painted under another face and name. Then just make small modifications for the NTR or love paths and you pretty much figured out the whole thing. The brother who has a blink and you miss it role in this "version 1.0" is a bit of a wild card but is most likely just another dick to put in the gf. Not bad in of itself. In fact, even a basic plot that moves the story along quickly has its place. I'm mostly trying to explain why this isn't a 5-star story.
Player engagement feels limited to choosing story paths. So far, the rest comes across as kinetic.
Graphically this is where the game does shine a little. It's AI CG done mostly right. The brief animation looks good too. Although the loop is shorter than some I've seen. With a few more genuinely good scenes and animations, the graphics could compensate for a simple story line.
As for the UI there's not much to judge. A few choices. No bugs. Nothing else at all really.
Overall, it's a 3.5 for me. I'm story centric so that's where the vast weight of the rating goes for me. Rounded down solely because of that irritating version choice and ignoring the blatant fluff review below.
I will check back in future updates looking for an excuse to change my score one way or another. Hopefully in a positive direction.