This game... It was one of the best one's years ago, I played up until chapter 3 at the time, (I'm currently playing as I write this review, so it might change later)...
First of all, this isn't your run of the mill porn game, no, for better or worse, it possesses a deep lore, trying it's best to be rich in story... Something that can put you off a lot, because the game takes it's plot first, and porn as a secondary thing...
The game contains a bit of VA, not a lot, good soundtrack, and takes itself steady and at its own pace...
It's grindy, it might frustrate you, and you will need to at times switch between going full story mode (fighting against succubi) and at others going to the general map and to the ruins (Elven ruins increase your Magical attack, Demonic ruins increase your attack damage, Sumer ruin gives you a bit of luck and a some good resistances against status effects, Angelic ruins 25 HP points and a few skills, and Dwarven ruins magical defense and a Magical nullificator to silence enemies) I recommend you to do as many ruins as you can before having to go to a different place, I started to make the ruins when I had a +9 sword of Avalon, which made it very grindy...
Something that can really put you off, is how much the game takes itself seriously as I mentioned before, it takes itself as a plot heavy game first, and a porn game secondary, if you really just want a quick one from the start, skip the intro, skip the name selection, and go straight to the first enemy, there you can choose to submit (easy porn scene) or to fight... Against every enemy, there's 2 sides, submitting at the beginning, or once you win they "attempt to seduce you" up to you what you want...
First Edit: At chapter 3, after having Elven ruins at tier 3, sumer ruins completed, 2 demonic ruins done, and so on (Basically getting very strong) I must say that there isn't much of a challenge, and the amount of cinematics and things happening around our MC but without a direct importance to us, make the game really tedious, like, really, I throw a rock to pass the river, but I have 2 minutes of cinematics each time I enter a new place... The succubi enemies don't really last if you've done your homework (visited the ruins), something to change this would be to spice up the battles since they get repetitive and tedious fairly early once Chapter 2 is finished. Something else to notice, at the choices of chapter 3 (you'll know what I'm talking about) go for the God of Gifts, if you do the fighting, against the succubus, you permanently lose 25 HP...
Second edit: At chapter 4 the game art seems to have... Changed, became more cartoon and more friendly, again, one of the main issues between chapter 3 and 4 is... The lack of sexual scenes, the game seems to have turned into a Shonen rather than in the sexual aspects of it, and once you're on chapter 4, you... Already have enough gear to just completely smash any enemy that comes your way... I'm not saying the game should reduce the grind, but perhaps a bit more of eye candy and reduce the attempts at being a "MLP: The power of Friendship" something to note is that, at least up until chapter 4, there are still no scenes with any of the heroines...
Third edit: At chapter 4, there's a girl that's bugged, after the celebration her attacks are either "Succubs temptation" or Paralysis (You can only win using a Darvel)...
Fourth edit: At chapter 5 it's just... Atrocious, you have to grind to fight against 4 girls that are the 4 seasons, so far, okay, not too bad except... You remember when I wrote that you need to have Darvel to avoid paralyisis...? Well, Autum will permanently stunlock you, meaning you never have a turn, and Spring if I'm not wrong will do the same, so before you enter chap 5, get at least 10 - 20 Darvel...