Ok, I think with 3 hours in, I gave it a fair shot.
So basically: This is a grinder first. You basically have to grind pretty boring enemies over and over to become strong enough to beat pretty tough bosses. And that seems to be the main focus of the game.
Story is told in short scenes at various checkpoints, but you feel more like the story happens around you. Your Character does very little.
The Hentai also feels like something added to keep people from getting bored, you get a rape scene here and there, and other than that you get story-irelevant scenes with your sex puppets at home, or some scenes from stories your main puppet tells you. The Party seems to be only the typical gritty, grim-dark fanatsy trope Characters, no sexy or hot Girl party. Same for the Monsters you fight. So the hentai Part seems to be totaly seperated from the main game.
So basically, if you enjoy just grinding for the sole reason to see numbers get bigger, and think a hentai scene every now and then is enough extra motivation, its a game for you. If you want to have an actual story where you feel like the Charatcer who is actually important to the Story... this aint your game, try something else.