Decided to give it a shot and it's a good story overall, but the writing is lacking.
The game has a good enough setup, allowing you to jump headfirst into the scenarios that show up (met a hot chick? you can flirt with her straight away; met a vulnerable girl? you can abuse that vulnerability; having sex? you can cum inside; caught having sex? ignore whoever caught you and finish; someone attractive in front of you that you should morally not be into? you can go for it anyway; in summary, no bullshit) and there are plenty of sex scenes. However,
Some of the sex scenes are really bad.
I hope you like this view because it's the longest scene in the game currently. You're forced to watch this flabby dude in a froggy pose for like a 100 lines while he eats someone out. I'm not into cunnilingus at all, so it would be nice if we could skip this entire scene somehow or choose a different action - doesn't even have to be sex, if we were allowed to confront her before jumping in and we talked while standing, dressed, I'd be happy and the dialogue would make much more sense.
We haven't met the MC's family so far but he mentions a bunch of boys iirc, which could be a choice to allow the player choose whether they have sons, daughters, mixed kids... also, the MC says "I never thought I'd ever touch someone so young!" at one point, and I believe this is a huge fumble. The Dev could ditch this line and then later when introducing the MC's family show that he has been raising and training his wife and daughters to be a harem of sorts.
I also like dialogues - I love you and I love you, ctrc + c, ctrl + v and so on 10 times, although not even a day has passed since their first meeting. Again, with such "love" at first sight, brother mc here is the third wheel and the addition of background to version 0.1 not only did not add the meaning of what was happening, but vice versa
This is kinda confusing but he hit the nail on the head. Dialogue is very repetitive with the love thing, and it makes no sense. MC's first interaction with his affair is extremely weird and unnatural, talking about loving the girl because she's important to his brother and part of the family again and again. The writing is really bad on that front.
All that said, if the game keeps the rhythm up and improves on its flaws, it's bound to be one of the best out there. Godspeed, Dev!