The game is super cool, the plot is exciting and very well-written, it can easily become one of the best novels here.
Although I see a few issues here and there. You aren't obliged to pay attention, but i'd like to share my viewpoints.
The king's assasination is described very shortly, even somehow casually, like if he just died of old age. That should cause HUGE commotion around the castle, even the whole capital: guards everywhere, interrogations, lots of people arrested, etc. The heirs most likely would be locked up in their rooms with a ton of soliders guarding them, just in case. But nothing like that actually happens, Sarah is freely walking alone, her girlfriend easily sneaking around the castle, and nobody really minds if that assasin would kill a few other royal family members.
There are already about 8 different plotlines that may further branch depending on your decisions. They are all very promising, so it hurts to say, but is it really possible to make them equally interesting and eventful? My first playthrough ended in like 15 minutes and I thought that the game is some sort of 0.00001 pre-alpha and merely deleted it after that. I understood my misjudgement after trying to play other routes, but still... I see that the mage route is the most developed, and still it branches at the end and lefts lots of story untold for futher updates. Warrior plotline is somehow parallel to mage's with the same twist, but also there are completely different plotlines like marriage or concubine or civil war and it seems merely impossible to develop them equally. I'm afraid that you'll be stuck with many subplots that will drive attention from current major plotlines. It can easily turn to development hell.
The h-content suffers from being dispersed between so many characters and plotlines, there is no empathize on Sarah's sexual development or corruption in most of branches, romances happen very quickly and some scenes feel out of place. The game is fine even without sexual content but it won't get popular lacking that part.
That aside, the game is great, good luck to the dev, gonna subscribe to your Patreon.