8.5/10
One of the best traditional-style jrpg's ever, it delivers in spades as a game-game but leaves something to be desired as an H-game. I've spent almost 40 hours in this world, so I'm going to take my time with this review, if you don't mind.
Gameplay - 8/10
In my opinion, the gameplay is about as good as traditional-style jrpg combat can possibly get. It doesn't do anything unique - if you've played any rpgmaker game or jrpg then you already know - but what stands out is the balancing. Most h-games have TERRIBLE balance. Tedious fights, bizarre difficulty spikes, zero testing, etc. This game always keeps the difficulty just hard enough to be engaging without frustrating, and you are never obligated to grind (the one exception being the end game). Aside from that, gear is super rewarding and you are very well rewarded for exploring and seeking treasure.
That being said, it is still traditional rpgmaker combat, which is limited in how good it can be even if executed perfectly, in my opinion, which arguably this game does achieve.
H-Quality - 7/10
Art is excellent, and there's significant scene variety. No voice acting or animation, if that's what you like, but the quality is good overall. But I have a bone to pick. There are seven characters, for each one you ultimately get 1 Bad End scene for that character, and 3 consensual scenes (mostly generic stuff like footjobs and blowjobs, etc). So if you count up the nonconsensual/slavery/no-no types of scenes, they only account for maybe 30% of all the scenes. There's nothing wrong with that in itself, but the whole game's CENTRAL MOTIF is slavery and bad ends. Everything about the world and plot is heavily centered around sexual slavery and similar dark themes, and yet the majority of the H-scenes are toothless consensual scenes. See the issue? There's a disconnect there. It's like if you played a game which had a lovey dovey romance story about people reading poetry and falling and love, and then three-quarters of the H-scenes are hardcore rape. Moving on...
H-Integration (How well gameplay and H-content mix) - 5/10
The game tries a number of unique ideas in terms of how it dissimates its H-content, but unfortunately they just don't work well. So pretty much all of the H-scenes in the game are localized into two areas - a prostitute theme park (yes really) called Doremi Fuckington (ruled by the fucKing. Yes really), and a Bad End dungeon. The theme park contains all of the consensual scenes (with a few dubcon ones) and the dungeon contains all the Game Over Bad End scenes. Okay, the theme park has a pretty interesting premise - you spend coins you collect on your adventure to see a prostitution scene of a character in your party, with different variants of that scene having certain rarities. It's a fun idea but doesn't actually add anything of value (if you're like me you'll end up skipping through the variants anyway). But really the main issue with the theme park is that... all the H-scenes are there. Makes the H-content feel very disconnected from the rest of the game. Because it is.
As for the Bad End dungeon - you can choose to get sent there whenever you lose any fight (the fact you can choose should tell you there's already a problem here). Then you have to go through this annoying and extremely pointless little mini-dungeon, where if you lose you get to see the Bad End scene for the character of your choice. It's fun the first time, but after that you realize it's just a gimmicky way of giving you one new scene whenever you unlock a new character for your party. Again, it feels very disconnected, because you just reload anyway, and also because the Bad End scenes don't have anything to do with the specific way you lost. Traditional Rape-On-Defeat style games get a lot of flak, but at least they make the defeat feel related to what happened in the game. Also, there's just not that many of these scenes. If you're like me, you'll get very bored with the Bad End dungeon very quickly, which is a huge shame because, again, the WHOLE GAME IS ABOUT SLAVERY.
Oh, one more negative - after you unlock the final character, there's very little left in terms of H-content, even though there are still 2 chapters to get through (including the hardest parts of the game with the most annoying fights).
Story/Writing/Characters - 10/10
Laying aside the story's addiction to deus ex machina, and perhaps a plot hole or two, this is one of the best stories I've experienced in any game, and certainly the best of any H-game. It starts out fairly unremarkable, but gets better and better and picks up steam as it goes. Chapter 3, in particular, is probably the most deftly executed story sequence I've ever had the pleasure to experience in a game. I think this game deserves a lot of credit for building a compelling narrative, which, in tandem with the highly competent gameplay, had me coming back to the game with eagerness to play more, even after the H-content became stale. The characters, while not particularly deep, are quite endearing, to the point where by the end of the game, you're more likely to feel wholesome feelings towards them moreso than sexual. Which, uh, is good and bad I guess (this is an h-game after all). I even developed a crush on the grim-reaper demon for some reason. Grim reaper husbando when?? Anyway...
In conclusion... great game that will certainly make a lot of people's top lists because the actual GAME part is awesome. Unfortunately, the h-part doesn't live up to the incredible promise of the rest of the package.