I might be repeating these points, but I feel that they're important.
Many negative pointers and reviews, describe this game well.
It isn't a sandbox game with choices, even if it at times tries to be, it's a VN, without many choices.
This VN is very limited in choices, with few sort of scenes/scenarios or environments where a very limited scenario text is extremely spammed in a bad way.
It's to the extent, that it feels very rushed, to reach a very few and specific scenes.
Next scene, needs a super-spamming of text to be reached.
Most if not all, will hold CTRL and just spam through, I did so at several times and even if I read a lot and if I would have read everything, from I can gather from reviews, I still wouldn't be able to see much of he logic in the stories told.
A good example in regard of the beast route which is the only one I played so far, which I haven't finished yet, a point which many people make. Is that the MC is terrified of how the human treats beasts, but after seeing how beasts view humans and that the do also have slavery, is somehow doesn't understand that the beasts would act in the exact same way?
So there's barely any red thread to hold on to and this breaks the story.
When the story gets broken, you have to hope for good gameplay, which is hard without a good story, or a lot of sex scenes of good quality. The game feels like it lacks both.
The MC magically also hates humans for bad things, but doesn't barely mind that the beasts to bad things too or would do bad things. There must be a limit to how dumb the MC is, or he content should be entirely directed in dominating, tricking and using the MC.
Doesn't the MC understand that the so called victims, could be blinded by hate or tricked from their leaders?
This might not be the case, but logically, should the MC believe everthing he's told story-wise without trying to understand the root-cause?
So I believe that the best thing, would be to redo a lot of the story, a re-working of the game.
This will of course delay new updates and ruins saves, however I believe that this game will lose interest of the players before players gets to the late-stage content, in short the scenes, due to the wall of texts.
The game isn't that easy to get turned on at and lack sex or erotic scenes in comparision to the spammed text.
There also needs to be more choices and paths in a game like this, as the text makes it sound as there should be choices which the story or rather text. Different choices can lead to different kinds of sex scenes, but this would require a proper gallery.
A re-making of the game, is likely better of done as early that's possible, due to that it'll just get harder.
The introduction phase of the game is badly made, due to that it's like a massive wall of text, but the phasing, is like a flip of a finger.
A good idea, would be to have a lot of sub-quests, like the game introduces somewhat after the prolouge, but at a way larger scale.
These sub-quests, many of them, can generate money or useful things, but most importantly they could give the game proper story content. To this content, there could be erotic or sex scenes. If there's corruption with the nobles, have a few sub-quests or a long sub-quests introduce this.
There's of course, if you go by logic, be the exact same corruption issues with the beasts.
Have the MC do quests and possible train to learn skills or how to properly fight, the MC can with his heavenly power gain strength quick if it's a must to show of how mighty he is. Many devs makes the horrible decision of making a magically super MC, which often breaks the story, it's a lazy way to skip a lot of work of building up the MC, but only a few games succeds in it. It's the same with anime, a lot introduce a super-MC and it might be interesting for some episodes and then you stop watching them, unless you fast-forward.
Many might have an issue that I haven't played the entire game, but that's very hard to do in the current state.
You just hold control and the sex scenes aren't rewarding enough, so it's hard to play the game, in the way of getting interest to play it. So again, the game likely scare of many new players, due to the current structure. Now late in the routes, there might be good content, but the game doesn't make me want to play through it, even if I want to try it or might try it by holding ctrl.
The devs idea, might have been to create specific sex-scenes and then the story was an after-thought.
It would be good to have a few to read-through the text several times over.
When you write something, it isn't perfect in the first iteration, it takes several times and sometimes weeks to creates good stories, especially if they're long.
Also in the beast brothel, a good recommendation is to make the succubus, the winged one down-right more dominant and not let the MC overpower her, it would make a way better scene. It feels like someone couldn't stand that the MC was dominated and made an un-natural reaction from the MC to magically dominate the succubus.
This makes the scene bad, it would have been better if she charmed the MC or something like that, while the MC tried to resist and after cuming, the MC could overpower the Succubus. The scene is unnatural at is stands now.
I would have preferred a more femdom-oriented scene in this case and have them cum for a few times.
Lenied partner could comment on it to, possible Lenie as well to humiliate the MC.
I didn't feel much from the other girls either either, but I do like that Lenie or whatever her name was, sleept with others than the MC, you could introduce someone with a larger dick than the MC and do more NTR-styles.
Every sort of mission should have sub-quests, sex scenes and it could be good if the MC is surrounded with a party when exploring. A bit like RPG, the current card-battle, scrap it.
Have instead choices that the MC can make, which can lead to different sub-quests, like when attacking a village, that might require a lot of tasks. The reason could be that someone important or high-up is in the MC's party, to handle negotiations and the MC is extra strength.Thief and troll and other games from the same developer is good example, especially princess knight, knight and princess or princess and knight or however they title went.
I don't mind a dumb MC, but in these cases, the environments around the MC, like characters and situations, must dictate the MC's views, reason and actions, like other characters are in control of him.
I would find it hot, if Lenie sees the MC as a slave throughout the game.
It would also be good that before enter the inn, that they give the MC proper training and makes sure that the MC understand that he must act like a slave. The MC could then give different replies, like "try to keep it mild", "do whatever you believe is necessary", "I don't mind that kind of treatment". Different replies gives different points to different paths.
Also, make the chain longer and chain the MC to a part of the bed.
Lenie should also hold, as in tugging the chain while walking, the MC could be chained outside of stores, Lenie could be reminded, to not let go of the leash if she isn't holding the chain at one point. Similar to Monster girl quest 3, you could visit different places, which you might re-visit later with different replies, in S&M paths, that could add flavor.
Lenie could humiliate the MC, as the cover and her own pleasure.
In the cave, with Lenie, the MC can say that he understands Lenie and that he also hates humans and believe that he should be punished for being human. This can result in a sex scene, where Lenie says "Finally, you're saying something which fitting of your stance".
When coming to the city where the MC is to be enslaved, a good flavor would be to either skip the early introduction of the super-woman from heaven or whatever she was, it could be good if specific choices are selected, to leave her for later. Lenie could double-check with the MC, if he's serious about making amends for being humans and if replied with different sorts of replies, which could result in different outcomes, one could be "Yes, I'll do anything to serve the you and the beast people" or something like that, another reply could stop the slave branding.
The MC then gets branded and a gets a proper collar, possible one which can control his action by voice, so the MC can't break out of it, unless he finds a way to do so by a sub-quest, if wanted. Mind-changing collors tend to break the story and domination part.
Lenie could then treat him fully as a slave, a love-slave and such things. When meeting the woman from heaven, he could get the option to become a beast or remain as a human, if he remains as a human then they could insist on slave registration and branding. Lenie could then be out of money and rent him out to a local brothel, where he gets used/raped, Lenie could sleep with others reguarly. The MC could be forced to fight for the beasts, even when he understand that they're just the same as humans. After a fight he might get shared by Lenie, Lenie and the beasts might ship of entire villages to slavery and the MC could point out the issues with this and Lenie the reins in the MC, telling him to remember his position and similar things, the MC could be silenced, spanked or rewarded with nipple-piercings.
Similar if the other part is a woman or man, the MC can be dominated, bullied, humilated, NTR:ed and that you can see the stories of those doing it behind the scenes as the trick the MC and there could take a few sub-quests for the MC to break free if that's the intention.
The MC could dominate others in similar way, if he's the dom, especially if the he captures them after a fight.
I would also love for the MC, to be a woman and see lesbian sex, or the MC being raped with a dildo by two girls, which can also be done by in the his male form.
This is how you spice up a story.
Don't hold the MC or specific characters to high, cling to specific standards and don't idolize them.
Try to create different content, so it isn't just the same nearly cloned scenes.
Even if you as the dev, prefers femboys or male gay-sex, if you have a long story, then you need a lot of different fetishes to keep sex scenes vibrant and the story interesting.
If it's to much text and little content or too similar content and you don't want to expand more sex-scenes, then I recommend to cut down the story and re-write it, so you have a strong red thread with one or a few kinds of content, so the game is rewarding for playing it.
If the MC would be a woman or could be transformed to one, then you could bring in tentanclepanties and tentacles.
The MC being a woman could bring a lot of players, especially if the MC is to get dominated.
Also at the start you chose if you are to see both gay and straight sex or only straight sex, does the latter change the pictures so that the sex-scenes show more vaginas?