Having noted a review a couple down, I think the first thing I should point out is that the game has both shota and loli characters. Read the tags, if you find anything there that offends you, stay away. This should be said for ALL 'H' games, not just this one.
But for anyone into this sort of thing, this game is highly recommended. It is sweet, it is funny, and it is hot and sexy. All sorts of incest fetish buttons get pushed on this one.
It's also ridiculous, but it's an H game, so that is a given. There is some parts that would have ended up with child services involved inside a week... but here, people take it in stride (well most people).
This game is a lot like Summer Memories, but with more of a western focus, and less nonsense about 'womanly instincts' and 'powerful manliness'. In a way that is still there, but it isn't spelled out so literally unlike in SM, where I couldn't avoid an eye-roll every time it came up.
The art is overall nice, with some of it a little too cartoony, but I never found it too bad. Some scenes were animated. The story-line - while at its core standard incest harem silliness - was quite fun. The mini-games were all ridiculously easy, well, except the 'tennis' (Pong) - I suck at Pong. But if any game is too hard, you can simply ignore them and buy gifts for the character instead to level up your relationship. The sex scenes were pretty easy to get to - after a bit of a build up - and were fairly well done.
I even found the pregnancy aspect hot. Normally it doesn't do it for me - and the pregnancy epilogue with everyone redrawn with pregnant bodies still didn't - but in this case it worked, within the context of the story.
As someone else pointed out, this kid doesn't have magic powers, or any other nonsense, he is just absurdly lucky and in a family of horny perverts. This is also nice.
On the negative side, what sound effects that are there are almost inaudible, even with the sound effect volume at max. The sex scenes could probably have used some more lurid description as well as sound. More animation and variation would have been nice as well, but that was probably limited by budget - as is the black screen 'segue scenes' that are only description with no visual (not much happens in them anyway, they are just for setting up the sex scene anyway).
One odd thing is that the mother, aunt, and grandmother are all "don't let anyone find out what we are doing", which makes perfect sense, but then you have the adolescent twins fucking on live stream, and a tertiary character making porno with the shota character... and yet apparently this doesn't result in the police showing up. The decision should have been made, was this acceptable, or not? It was a bit odd the way it was.
The biggest complaint I would have is that the game really has to be played a certain way, or you end up with the main character ass fucking women one scene, and then not knowing what his penis was doing the next. The coders really should have put in more conditionals based on what (or who) the character had already done. There is some of that, but not nearly enough. One I found amusing was having sex with one girl who was thinking about how another girl was probably a virgin... except you'd already engaged in a threesome with both of these girls already.
On the side of things I was disappointed wasn't in it, there is the aunt and cousin relationship that never hits its full potential which really disappointed me as I really wanted the main character in a threesome with those two. I think the mom and aunt together would have also been nice. The twin should have also been in threesomes with everyone else, as the twins were supposed to be super close.
I'd give it 4.5 stars if I could, but I will in this case round up to 5 as the complaints are overall relatively minor and at the end of the day I really enjoyed the game despite these small complaints.