Pretty decent game. The opening is one of the worst I've run into though, save yourself time and literally rush main story objectives until the game gives you a direct message saying town events are open. It will be a while; lengthy main story session in town, the entire first dungeon, a ton of objectives in the town again... and that's including skipping the prologue lmao.
I hate it when these games assume their writing is worth your time, because that's rarely ever the case, and frankly, I can only handle so many lazy trope premises in a row and that's exactly what we're fed here. Some kind of demon/dark lord/force slowly corrupting people... MC has le usual lust/succubus curse/mark/brand/whatever, and you go on doing mostly rote and boring things while 'resisting' it, which by that I mean not resisting it at all because it's a freaking ero game.
This game does do some things right, though. Minor spoilers, but giving in to desire makes sense eventually (and is hinted at in the first dungeon) and leads to a better ending... which also makes senses for a porn game. In other words, you're not punished for enjoying the only real reason you got the game.
Secondly, the MC isn't a virgin so there's no virgin run or worrying about what you let deflower her if you're a person who cares about the narrative at all. Some of the questionable stuff is avoidable, like NTR, which most people are against, so good news there.
The art is great and there is a decent variety in the scenes. Despite my lashing of the narrative, it's not the worst. I have a good eye for this kind of stuff and can tell if it's the translation or if the core story is just bad (as most are), and though this is yet another incredibly tropey and unimaginative RPGM pron romp, it is definitely one of the better ones to pick if you're going to play one.
That being said, combat is laughably easy and utterly boring as it is for most RPGM games. The amount of enemies with anything but the most barebones and generic grabs/sexual attacks is few. Luckily, you don't have to grind a lot and the ease of the game lets you mostly burn through combat sections. Game uses RoD sadly, but eh what else is new. So you will have to die a few times on purpose just to get some scenes.
Overall, I'm impressed with this being their second game, and while it's still firmly stuck in the cursed cesspit full of RPGM games desperately trying to be more than glorified CG dispensers, there is enough game and narrative to make it among the best of the worst subsection of ero games and in my opinion its existence as a game instead of just a CG set is worthwhile