This is an extremely well made demo. There's so much content to explore for a demo, with a gorgeous art style and CGs, and most impressive: rigging (I think they're rigged models).  It is clear that there was much thought and love put into this. 

The branching of the story was really interesting. The only thing that I find odd is that I don't really see how the fiance is a fiend. I may have missed something in the demo, or more likely,  this will be further developed as the game gets more updates. On a humorous note, it's a bit silly how the main five love interests (maybe with the exception of the king) develop such strong feelings for the MC after only knowing them for less than a day. 

Overall, this demo deserves way more attention and I look forward to future updates.