Even with such an early build, I've found what the game has on offer enjoyable. My primary concern for future developments is the unwieldiness across several systems and their associated UI elements, which I fear will pile up into an unmanageable mess as more content become available:
Scrolling
I can't say I am a fan of having to scroll to read all available dialogue options when about half (actual amount is probably fewer, but it feels that way) of the dialogue has more options than could be displayed at once. Admittedly, I would also prefer more dialogue options over a neat but limiting alternative, so I'll immediately fire off a shrug back at myself.
Relatedly, I would also prefer if the sex positions are all displayed instead of having to scroll through them. Virtually all flash-era porn games and their unity descendants has this one nailed down so there's plenty of examples to borrow from.
Clicking
The training sessions are the major offender here, as repeated clicking is required to bring slaves' devotion up. I would greatly appreciate a togglable option to repeat an action on the specific body part. If you need an example, I believe Kazumi Rebirth has togglable fondle options, though it's been forever and then some since I loaded that game up.
Related to the training session, please let us swap the active slave to train in the train/customize screen, rather than having to back out of that screen to swap slaves.
Please let us control the MC with WASD and arrow keys during exploration. Failing that, I will also begrudgingly take mouse clicks a la RPG maker games. Having to hold and drag LMB is like thrice the work.
Readability
An option to render buttons as words and/or some tooltip that tells you what they do would be nice.
I would also appreciate better feedback when chopping trees. Currently it takes 6 hits to fell each tree and there isn't a distinct indication that the axe is doing any damage for the first 5 hits. I would suggest either make it take fewer hits (I'd say most people may be tempted to move on after 3 hits), changing the task so it shows a progress bar (press interact, chopping animation plays while progress bar fills, tree is felled when bar is full), or "damage" indicators on the tree sprites (like a simple "health" bar).
Others
An option to disable camera bobbing please.
Some of the training options can be much better tutorialized. I still have no idea what the "mind orbs" do. Are they permanent global buffs? Consumables?
I fully acknowledge that it's unfair to nitpick when the game is at its infancy, but I believe a stronger foundation will go a much longer way. Best of luck going forward!