Yeah I know it does, I was being coy to avoid saying exactly how fucked up it gets.
There's playing a villian, and then there's playing a villian.
The fucking mind games would be the worst, but... what's worse is that that's all the author has put thought into. And even then they aren't that good. And it isn't long before most of them start to suck, too. There's just no there there, save the tiny bit of mystique that comes from his backstory and ultimate goals. And we lose the most potentially interesting character, an opponent who can think on his level, as a matter of course.I have met this story (criticism comes best from an informed position), and it is pretty much Dungeon Keeper fanfic with no gameplay abstraction of the bit where you can capture invading heroes and turn them to your side. There's a lot of turning them to your side, in some detail.
The main character is not a blank slate, which is usually a good thing, but this guy is towards the darker end of the "slave master fantasy" domain. What kind of person would actually brainwash and dominate his way to power like this? Somebody with really really extreme control issues is who. Most of the time he's Doctor Doom level "do not resist me and I shall be a kind master".
On the one hand, this is entirely in character, and it's not what you'd do in a story that serves purely as a vehicle for smut. On the other hand, yikes. And it's not like the rest of the story isn't smut heavy.
So this is really not a nice story. It's purposefully dark on top of the usual coercive smut that you get in stories of this ilk. You could describe this as depth, but there are some bodies of water where swimming is just a bad idea, and the deeper they get the more dangerous they are.
The banter between a wizard and a succubus should be sexy, charged with a tension and excitement out of a classic romance movie. Even if they have sex, even if she ultimately joins in his plans, there needs to be something dangerous and wild about both of them to be fun. Mind-screwing a hero to be your servant of great potential power should make one feel on the razor's edge at all times, the affection and interest inextricably interwoven with paranoia that this will break her free. A bright, bitter, wrathful, terrible new apprentice should be reminding me of all the stuff about the Sith, where the apprentice is the greatest threat an evil overlord could ever have.
The story pays lip service to those sorts of things, but has no capacity to follow through on them. And honestly, those three alone are more than enough for both smut and character interaction.
It's not that I think this story has grand potential, but it has elements that could be workshopped into something fun, you know?