I picked this up out of my backlog. It got in said backlog mainly because of the art, because this is the circle's first game so I didn't have any expectations there...
Sadly, I can't say I'm particularly impressed with this game. This is mainly because it's not really much of a game. Calling it a gallery with extra steps if not really an exaggeration... and hell, you can get just the gallery pretty easily by hitting the unlock button. The only thing you can't get right away is the ending room, which is locked behind getting a non-pure-bad-ending and entering endless mode after 30 days.
The fact of the matter is that the story is non-existent and the same can be said about the character development. Nozomi goes from virgin to turbo-slut in moments if that's what you want to aim for and the effects of the various stats and skills aren't really as in depth as they could be. Beyond that, events only trigger if you choose to do so, so it's not like things happen much. Nozomi's behavior barely changes with the various stats, not to mention that it's just too easy to change them. You can evaporate her chastity stat in literally 1 day, and max out her charm almost as fast. Intelligence takes vaguely more work... but the fact of the matter is that before the 1st week is out, you can easily have Nozomi at 100 Charm, 100 Intelligence, 0 Chastity and 0 Ethics if you try hard enough.
There's basically no progression or anything, and the conditions and priorities for the endings seem... weird... I got the Exposure ending on my 1st run even though it didn't seem like exposure overtook stuff like anal or lesbianism in terms of importance or numbers. Then the second run got me the Incest ending, even though there were other things with far higher numbers. Why did it pick those? Hell if I know... but I suppose it doesn't matter much either.
The dev did try to do some interesting things with this game. Like the fact that Nozomi's anal and vaginal virginity are tracked separately and that it's entirely possible to play her as just a butt-slut. Or the fact that there's dedicated lesbian content. However, these things aren't really enough to compensate for the fact that the game re-uses CGs a lot, and it doesn't even have outfit variations o anything to bring some variety to the scenes in spite of things. Nozomi only had 3 states, naked, school uniform and casual outfit... and the latter has the same color scheme as the school uniform to the point where the difference between the two is barely there. The CG re-usage is particularly extreme when it comes to the lesbian content, though I'll give them points for the fact that the two named girls that Nozomi can interact with have unique CGs, even if there's only a few of them.
The named guys? Like the senpai or the popular dude in class? Nope. Nothing like that for either of them. You get more variety from her brother, the stalker dude (sorta), the delinquent gang-bang, the homeless during exposure in the park and the bath house gang-bang.
It's also weird that Nozomi doesn't have any options to properly date anyone. Though there are a couple of endings that are basically just that. (The brother ending and the so called lesbian harem ending which only consists of blondie and Hina.)
I'll also note that the gallery seems much larger than it actually is. This is because virginity loss variations for a number of events are tracked separately from the non-virgin variant of the same event. The difference in text is pretty big, but the difference in CG and whatnot is generally fairly minor. It shouldn't have been that hard to code it in the same crystal, but I suppose this way the gallery looks some 20-30% bigger than it actually needs to be. Or something.
All that complaining aside, if you want to grab something staring a big-tiddy high-school girl that has turbo-sluttery fast, this thing is pretty good for that. While CGs are reused a lot, there's still a decent variety of scenes involving vaginal, anal, gang-bangs, some choking etc. The game is oddly weak in terms of tit-fucks though. In fact, I think there's like... 1-2 events that have tit-fucks? I don't remember exactly but they're very few, especially for a game who's main claim to fame is a big tiddy girl. What blowjobs are present are pretty bad too.
Still, it's good for some sessions, it's easy to play one-handed (though not with just the mouse since the H-menu needs keyboard input to be navigated fully), and it's pretty much entirely brainless. It's one of those things you pick up to kick back, relax and schlick/fap/whatever to whichever content you find hot. Beyond that though, it's unlikely to be memorable, and aside from revisiting the scenes you like the most in the horribly organized gallery, there's pretty much zero replayability for this thing.
All in all, if I could be assed with a rating, I'd probably give it 3 stars. It has good ideas, but the execution just isn't taken as far as it could have been even for a 1st game. There was plenty of room for more polish for this game.