1- The MC. 

Honestly, his/ her situation is completely understandable. He/ she was suddenly thrown into another world, a twisted dark fantasy. It's a given that he/ she will suffer, and have more downs than ups and everything. And that's okay, it's perfectly normal. However, it's not normal to be humiliated, tormented, tortured (even if more "mildly") and instead of feeling hatred and rage, just accept the situation while feeling fear of the individuals.

It could be justifiable in some cases, but let's consider the following:

You died. Left your whole family that loved you dearly. Spent who-knows-how much time in the void without anyone to talk with, and then you are reincarnated into a twisted fantasy where you live more than a decade being a slave, ever since you were a baby and all for what? To get toyed with in extremely sadistic ways (not the kinky type, because so far, it is plain abuse).

With this said, it is more normal to become even more angered by the situation and not feel fear as the first reaction, because wanting it or not, the MC already died once, so his/ her brain should naturally arrive at something like: "If it's like this, there is no point in living anymore" or "I already died once". Of course, there are several ways of countering and destroying such thoughts, but you get the gist that the MC accepting the situation and becoming complacent isn't exactly normal in this case.

2- The characters.

This is... the most pressuring issue, to be honest.

Now, don't get me wrong, the novel has quite the characters that would be fun to explore, but that is also where the problem pops up.

In the chapters, we can see the small development between the MC and the female lead. We can see some good traits of them and also from some other characters. However, this is where things start to derail.

The author made (by mistake or not) the bad traits overwrite the good ones, and by quite a margin.

For example: The MC shows great potential in aura, having the chance to become a powerhouse in the future; has a (debatable) working head above his/ her shoulders; has a good body, and is supposedly strong at 10 and odd years old.

But, all of this is completely overshadowed by how he/ she acts and behave. Being meek when he/she obviously shouldn't be, spilling tears at the slightest indication that someone of a higher authority is angry at him/her, etc.

And this also brings the next problem: the love interest.

The mistress, Freya, is a terrible choice as a romantic interest to write about.

Reason being that her character was made basically "irremediable".

She was presented to the reader as a bad character, and I must say, her "good points" were severely lacking to make her be someone with just "circumstances", thus making her a "bad person" and believe me, the first impression lasts, even more Freya's which was as strong if not more than the duchess's and head maid's.

The problem was that the author wanted to make a sadistic character and went over the top. She became just an annoying one and her POVs weren't enough to make up for this, because again: "her "good points" were severely lacking to make her be someone with just "circumstances"."

And this is not talking about the BDSM part.

I get that Freya wasn't experienced and all. 

BUT.

I must say that a novel is the storytelling about someone, doing something, somewhere and for some reason.

As such, the motivation, journey and goal matters.

And the BDSM was introduced in such a manner that I'm not even looking forward to it.

It was introduced through torture. This alone is even justifiable if looked from a certain point of view, but when you put it this way on top of every abuse the MC has already suffered, yeah, it's not cool.

Overall, the characters were made unlikeable. Freya was made to such a point that I didn't even look forward to her "romance", but just to MC getting free. I didn't even want Freya to get screen time due to how she behaves herself.

And this is another thing.

Her behavior.

The author was threading a fine line here and looks like they were going to fell. I hope I'm wrong, but so far I didn't see it to be the case.

With everything that was done until now, it won't be much of a stretch to say that what Freya is doing can or will be considered later on as romatinzed abuse.

Because there is no love in their interactions and not a single shred of conscience from Freya's part, and this coupled with MC behavior and mindset doesn't wield a good result to read. And then, by the looks of things, the MC is going to get masochists traits.

This in itself isn't abnormal or wrong. But she gaining them under those circumstances, and to someone like Freya, to later on develop a romantic relationship? This is something I can't consider as a good reading. Not to me, at least.

3 - The succubus part

No, it doesn't justify the MC feeling aroused in extreme situations such as torture.

10 years of humiliation and torment.

Hellish training for petty reasons.

Needless torture and orgasms denial.

Nothing, and I repeat, nothing should or could make her feel aroused.

Even if she is a succubus, her soul and mind is mostly human and this situation should evoke anger in her, mainly if orgasm denial is involved.

He/ she got pleasure? Pleasure mixed with discomfort and not-so-accomodating situation results in unsatisfaction, anger and so on because the rational part of the brain would prioritize to first get rid of the discomfort before even getting to enjoy something. Reason why, I believe people don't often enjoy doing the deed in an uncomfortable position.

So, this part just don't sit well with me.

We could also adhere to the fact that even if they are of age, both Freya and Ellise are 10.

But as some readers already did, I wouldn't.

4 - Construction

As said above, all the points boiled down to one thing:

I can't get interested in the story/ plot because the people and events that make it happen and progress annoy me more than give me a good entertainment.

It's simple as that.

I can't sympathize/ agree with the characters; 

I can't enjoy the characters interactions because it is always about abuse and punishment;

I can't enjoy the romance because the start of it is as I said: not much of a stretch to call romantized abuse.

This is why, sadly, I can't get a good read of this novel.

It has an interesting plot, an interesting world, and honestly, the MC having a body of that would normally be something interesting to read about.

I could even continue to read, but the annoyance while reading hinders me from having a good read, and I feel more like agonizing by reading about the things said above, because every single time that I hoped they would get better, they didn't, if anything, they got worse.

So, all in all, you can give it a try and if you enjoy, nothing wrong. But if you feel uncomfortable while reading or agree with me in the points above, it would be better to stop.

I sadly can't say that this was a good reading, but I enjoyed while it lasted.

The MC, Ellis, is still a slave. No surprise there, as it’s pretty early in the story. Thing is, you could easily summarize the past 10 or so chapter as ‘Ellis does something that Freya, the villainess/duchess’ daughter Ellis serves, finds fault with to torment her. Freya does so beyond the point of reasonable punishment because she just so happens to be a sadist by birth. Not to mention that her personality apparently is warped by the dark aura, so yeah...